Black Mesa – Mod Walkthrough
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The new Half-Life: Source reinterpretation is out now and ready to download, but don’t go wandering around the creepy bunkers of Black Mesa Research Facility alone. James from Game Front’s always astounding Youtube Channel is ready to help you escape the doomed laboratory all over again.
Now featuring new graphics, new enemy models, updated weapons, and more; if you’re a Half-Life fan this tribute to the classic FPS is a no-brainer. Enjoy the road if you’re an old-school fan, or jump in for an amazing experience if you’re new. Either way, you might want to check out our Black Mesa vs. Half-Life: Source Comparison Video to get the idea — this independent modding effort is gorgeous.
Below, you’ll find our full guide with video to help you survive the inter-dimensional action that made Gordon Freeman famous.
Game Front’s Youtube Channel – Black Mesa Videos
Graphics Comparisons
Meta-Conversation [Easter Egg]
Dev Locker Room [Easter Egg]
Video Walkthrough
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Unforeseen Consequences
Enjoy the start of the game on a relaxing train ride through the Black Mesa facility. When you arrive at Sector C, exit the train and follow the security guard.
You’re running late, so move through the blast doors. After receiving some hurtful comments about your bad haircut, move through the second set of doors into the facility.
Head to the front desk and talk to the guard. You’ll need to grab your hazard suit, so make your way through the room. Feel free to talk to the staff.
Follow the green line and open the doors to the locker room. After hearing about the horrible dress code, make your way left towards the room containing your hazard suit.
Press the H.E.V button, unlock your suit, and put it on. Double back the way you came in. If you’re feeling curious, open the locker marked ‘Freeman,’ or just head into the bathroom and handle the emergency.
Follow the blue line until you reach a security guard blocking the door. He’ll unlock it and allow you to move through.
Take the elevator down to the next floor and follow the multi-colored lines on the wall. A scientist will start talking to you. Follow the scientist into the testing area.
Leave Eli and take the next elevator. Walk towards the test chamber and listen to the scientists. When the blast doors open, head into chamber.
Next, you’ll face your greatest challenge: climbing a ladder. To save you from frustration later in the game, you should know that you can easily enter and exit the ladder by pressing ‘E’ near it. Exiting the ladder will place you on the nearest safe platform.
Press the button on the console and get ready for the experiment. Move down the ladder.
Once the sequence is complete, move across the room to the specimen. Insert the specimen into the beam, and allow the chaos to ensue.
Once you are able to get up, head back through the destroyed room to find the scientists. Avoid fire and any other hazardous materials.
Go up the elevator and find Eli. He will let you out of the room so you can get to the surface. Avoid the giant laser beam, and keep away from the door.
Once the door is destroyed continue forward.
Continue forward and evade the laser beams by crouching. Crouch through the destroyed glass door into the next room.
Call the elevator and wait for it to drop. Crouch through the next destroyed door and move up the ladder.
Recruit the security guard to kill some enemies. Move into the next room and grab flares and health. Continue down the hallway allowing the guard to kill the enemies for you. If he dies, grab his gun.
Keep an eye out for a red vent to the right of the hallway right before you enter a room. Crouch through the vent and enter the flaming room. You will find a jammed door and a few enemies.
In the jammed door you will find your legendary crowbar. Grab it and start beating enemies to death. Avoid explosions and fire.
Jump through the broken wall. To avoid frustration later, try to remember you can jump higher and further by utilizing crouch jump and sprint.
Enter the next sector by placing the security checkpoint device back in its place on the wall. Open the door at the end of the hallway on the left. Go into the elevator and wait for the fall.
Move to the left and avoid getting pulled upwards by the Barnacles. If you do, kill them. You will also encounter your first Houndeye. Go through the door on the right at the end of the room.
Move up the stairs and turn the red valve. Find the scientist at the end of the hall. Talk to him, and he’ll lead you to a security office.
Head back the way you came in and use the catwalk to reach the security room. Use the manual override valve outside of the office.
Grab your weapons and leave the room. Once both manual override valves are activated, move back into the main room and head through the green-lit doors.
Continue down the hall and avoid the barnacles, headcrabs, and explosive barrels. Continue until the Vortigaunt starts attacking you. Kill it with the weapons you picked up earlier.
Drop down through the floor tile in front of the door into the sewers.
Find the valve in the maze of tunnels while simultaneously killing barnacles and zombies. Activate the emergency override.
After activating the override, the water level will quickly rise. Swim towards the entrance and swim up to the ladder.
The next room will contain a lift, security room, and a vent near the entrance. Use the scattered objects to reach the vent. Crouch through until you reach the security room.
Activate the power and move towards the freight elevator. Activate it and fight the headcrabs on the way down.
Find the hallway with the dead security guard and follow it into the next room. The walkway will explode. Jump onto the pipes to the right and follow it into the vents.
Drop down through the vent into the next room. There will be a bullsquid that you will need to kill. Jump into the water.
Take the right-most tunnel and climb the ladder. Head through the doors to the other side of the first room. Use the next door and head up the ladder.
Make your way to the catwalk and climb up yet another ladder. Use the crates suspended in the air to travel across the room. Remember to use crouch jumping and sprinting.
Once you reach the end of the room, head through the door and up the ladder. Keep moving and kill the houndeye enemies ahead of you.
Activate the elevator to the office complex.
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Office Complex
To your left there will be electrified water. Head right and watch the scientists get attacked.
Head back and go through the broken wall. Take the vent to the room where the scientist was killed.
Find the scientist cowering behind the chairs. Move into the room in front of him and hit the power. Go through the doors and cross the previously electrified water.
Break the window and jump through to the next area. Follow the red lights and kill the zombies that will attack you. Go through the red doors and find the security guards.
Pick up health at the bottom of the room, and head back the way you came in. Near the window you entered the area through will be yet another breakable window.
Jump through the window and use the furniture to move across the room. Hopefully you’ve played enough ‘the-floor-is-lava’ to know how to safely cross to the vent without being electrocuted.
Kill the headcrabs and crawl through the ventilation until you fall. Climb up the nearest ladder into the vents again. Break through into the next area and avoid the turret.
Hide behind the first crate to avoid getting shot. Use the crates as cover and move towards the lift. Destroy the turret and raise the lift. There will be a small passageway containing a power switch. Throw the switch.
Head up the stairs until you reach another security guard. Open the red doors and kill the enemies inside.
Find the barricaded office and push your way in. Find the scientists and lead them out of the room towards another set of red doors.
Near the stairs, you will find another scientist who will inform you soldiers are coming. Continue up the stairs.
Destroy the turret guarding the stairs and open the next set of doors. Move right into the hallway and kill the enemies. Break the entrance to the vent and follow it to the fan.
Use the ladder to reach the power switch and power down the fan. Clear the gap to the fan and climb into the next vent. Follow it until you fall through the floor.
Head out of that room and reach the cafeteria. Jump over the debris and go right down the hall.
Kill the enemies and throw the switch to open the freezer door. Save the scientist from the attacking zombies.
Find the valve on the floor and move it into place on the wall near the hanging meat. Move the meat directly across from the vent.
Use the shelves to reach the high-up vents. Break the vent doors and continue through until you reach the bridge you made using the meat. Keep crouching through the vent until you reach the next room.
Climb up the ladder onto the catwalk. Avoid the explosion, and go back down the ladder. Turn the valve, and move back up to the vents.
Drop down to the security guards and the scientist. Walk up the stairs and kill the attacking enemies. Go through the exit door.
Jump across the elevator shaft to the ladder. Keep climbing until you see a scientist barely holding on to the ledge.
Walk across the wooden plank to the platform adjacent to the hanging scientist. Keep going up until the elevator falls.
Jump on top of the elevator and break through into it. Take the elevator to the next area.
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We’ve Got Hostiles
Move down the hall and watch the doomed scientist run through the laser. Blue lasers will explode on contact with anything.
Crouch under the closing blast door and head towards the red lasers. Destroy the stationary turret without touching the lasers. Red lasers will activate turrets on contact.
Kill the enemies in the next room and walk to the back. Jump over the next blue laser, or disable it by throwing an object at it. Stay clear of the explosion. Crouch under the next laser.
Kill the enemies in the cafeteria and move down the stairs. Destroy the turrets by shooting the explosive barrels. Kill the next wave of enemies.
Destroy the turrets in the back of the room and head through the next set of red lasers. If the turrets are destroyed, the lasers will turn off. Move through to the door to the storage area.
Pay attention to the catwalk at the back of the room. Head up the stairs and chase the mysterious figure. The soldiers are here to save you, or more realistically, kill you. Kill the attacking soldier.
Use the lift to reach the next floor. If you haven’t figured it out, the soldiers are here to kill the scientists. Kill all of the soldiers in the room. Move into the next area with barnacles on the roof.
Move across the bridge without falling or getting caught by barnacles. Avoid the explosive and turret lasers in the next hall. The scientists will rush into the next room and be gunned down.
Follow the scientists’ path and kill the hostile soldiers. Continue upwards until you reach the control room. Walk across the bridge into the next room full of hostiles. Reach the floor and use the lift near the fire doors.
After a very slow elevator ride, you will be at the surface. Kill the soldiers and avoid getting hit with rockets from the helicopter. However, do not try to defeat every soldier. Instead, wait for the firing to slow down and make a break for it.
Exit the building and sprint towards the bunker in the middle. Make sure you run as the helicopter is out of sight. Climb down the ladder in the middle of the bunker.
After the shaft collapses, kill the soldiers hanging on the ropes and jump on the debris until you reach the bottom. Climb into the vents.
Drop down into the hallway and kill the headcrabs. Move up the stairs and into the small workshop. Climb on the table to reach the vent.
Move into the security room and talk to the scientist. Pick up the shotgun near the controls and listen to the scientist talk about the rail system. Exit the area through the silo doors.
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Blast Pit
Break through the doorway barricaded with wooden planks. Walk into the next room and climb the ladder in the back. Jump on the boxes and enter the vent.
Drop down onto the wooden boxes. Climb down the set of ladders to the bottom. Climb up to the rail system and either walk or use the train to reach the next area.
On your way down the track, kill the houndeye enemies. Exit the train before you get launched into the radiation lake. Use the catwalk on the right of the radiation to reach the other side.
Climb the ladders to the pipes and crouch into the broken pipe. Drop into the room and kill the bullsquid. Cross the pipe into the next hall and kill the second bullsquid.
The next room will have a huge radiation lake. There will be bullsquid in the lake, so kill them. Follow the big pipe and jump to the shipping crate in the middle.
Hop in the elevator and take it to the next level. Kill the houndeyes and move towards the center of the room. Activate the blast doors to enter the room. Talk to the dying scientist and move towards the rocket engine control room.
Witness the horrible death of the second scientist and open the next door. You’ll need to be quiet. Crouch from now on as to not alert the creature.
Move down the ladders and break through the door barricaded with wooden planks. You can sprint now without alerting the creature. Clear the gap and head towards Silo D for oxygen and fuel.
Follow the blue and red pipes. When you reach the door marked with 5, turn right and kill the zombies below. Climb the ladder down the left hole leading into the water.
Kill the bullsquid and turn left. Follow the pipe until you have to make another left. Climb the ladder into the next room.
Open the door and kill the zombies inside. Find the giant fan and follow the catwalk. Climb down the ladder towards the fan.
Climb down the second ladder. Once you are under the fan, throw the switch to turn it on. Quickly run back to the ladder. Climb up and avoid getting hit with the blade as it will cause instant death. Head back up the ladder.
Jump into the pit as if you were trying to jump into the fan. You will start to float upwards. Enter one of the many vents and crouch through until you reach a stairway.
Find a room with two pipes that should have valves on them. Open the door to the storage closet and grab a valve. Place it on the pipe and steam will start coming out. Turn both of the valves until the sign on the wall glows green and reads ‘Ready.’
Walk up the stairs and follow the red and blue pipes back to the silo.
Avoid the creature and move another level down. Break the wooden planks blocking the next doorway and follow the red line towards Silo D Power. Exit through the door
Move into the hallway directly ahead. Kill the houndeyes and barnacles. Press the button on the wall to the right and call the lift.
Ride the lift to the bottom of the shaft. Before it hits the radiated lake, exit to the platform and talk to the scientist. You will need to start the generator.
Run down the tunnel and go left. The blast doors will open. Run around the generator while avoiding barnacles. Take the ladder to the top and take notice of the two rooms.
Both of the rooms will contain a button needed to start the generator. Press the red button in each room and the power sign will light green and read ‘Ready.’
Exit the way you came in. Talk to the scientist again and he will tell you the power is restored. Walk across the wooden planks to the ladder. Climb all the way up to where you called the lift.
Go back the way you came. Enter the silo and sneak passed the creature again. Reach the control room where the scientist was murdered by the creature.
Press the button and back up into a corner. The rocket engine will power up while simultaneously destroying the creature. Go back into the silo and move to the bottom.
Climb down the ladder until you reach water. Dive under and emerge on the other side. You will reach a large swirling radiated lake. Follow the pipes in the direction of the water current.
When you reach a platform with a valve, turn it. A pipe will then move into place. Jump into the pipes and use the them to get to the other side. Follow the pipes until it falls.
Continue into the hallway leading to the next area.
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Power Up
Sprint across the room ahead while avoiding soldiers and the alien. Walk around until you reach more enemies. Kill them, and continue into the doors ahead.
Talk to the injured security guard. You’ll need to get the power on, but there are giant creatures ready to kill you. Head back out and move down the ladder. Keep moving until you reach a radiated room.
Move up the ladder to the left and go to the third level. Open the door and destroy the turret to the left.
There will be hostiles to the right. Kill them and continue down the hallway. Neutralize the next group of soldiers and go up the stairs directly ahead of you.
Kill the soldiers to the left of the doorway. Jump down the stairs to the third layer and be ready to kill houndeyes. Head down to the bottom layer which will be flooded.
Activate the red generator and head back up to the second layer. Throw the switch for Unit 1 in power control.
Head back upstairs while avoiding electricity hazards. Kill the hostiles on the lift on layer 3. Use the lift to go up, and prepare to kill more soldiers.
Open the door marked 3 and head back down in the radiated room to the first level. Keep moving forward and head up the ladder to where the injured security guard talked to you in the beginning of the chapter.
Activate the button to the security door. You’ll need to get the train started. Exit the room and go to the tracks. A giant creature will be waiting there. He’ll immediately attack you when he sees you.
Don’t try to fight him. Sprint along the left set of tracks. Near the ladder, move the plug into the outlet. There will be one more plug that needs to be moved on the other side of the ladder. Once they are both in, move up.
At the top of the ladder there will be a button. Activate it and kill the creature with a static discharge. The creature will burn up, and you can move back down to the tracks.
Follow the tracks back and get into a train. Drive the train down the tracks to the right, and exit to the left where there is a security guard. Talk to the security guard. Once you’re done, drive the train straight forward.
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On a Rail
Ride the train as it spins down to the next level. Drive the train straight ahead and watch out for barnacles.
Continue driving the train to the split in the tracks. Kill any enemies and continue straight forward. Find the electrified water.
Walk to the left and throw the power switch on the wall. Climb down into the water and find the override. You will need to plug something into it.
Jump into the water and follow the wires. There will be another plug at the bottom of the water, so grab it and head back to the override. Plug it in.
Climb back up to the train and throw the power switch again. Use the ladder to head into the room near the switch. Move down the stairs and into the room.
Press the security door activation button to open the door on the tracks. Head back to the train once the doors are open. Drive the train into the next area.
Exit the train and move up the ladder to the left. Make sure that the train is still spiraling upwards as you ascend with it. Use cover to destroy any sentries in the area while you are moving up the ladder.
Once you clear the room of sentries, the lasers will disappear. Your train should now be at the top waiting for you. Board the train and continue forward.
There will be one sentry on the track. Either avoid the laser completely or destroy it. Drive forward until you are ambushed by a couple of soldiers.
Kill the soldiers and enter the room they were in. Follow the stairs into another room full of soldiers. You can recruit the security guard in the closet to your left. Clear the room of soldiers.
Find the room with the tracks. There should be a giant Half-Life symbol above a door. Climb towards it and get to the next floor. There will be a manual door override on the wall.
Reach the tracks and kill the next group of soldiers. You can use the mounted .50 caliber machine gun near the sandbags. Follow the tracks through the door that you opened.
You will find the missile launch area. Eliminate any hostiles in the area. On each level, press the green button on outside of each work platform.
Climb towards the surface. On the top level, press the activation button. The missile will rise. Go back down the ladder to the tracks.
Board the train. Drive forward and lift the train towards the surface. When you reach a new set of tracks, proceed forward. Keep an eye out for soldiers who will ambush the track.
Once the checkpoint of soldiers is neutralized, open the set of doors to the right. Open the red door on the left of that room and listen to the soldiers talk about you. When you’re done, shoot them.
Head out to the surface. While fighting soldiers, cross the tracks to the rocket. To the right of the rocket there will be a basement door glowing red. Find the ladder at the bottom and move up to the launch room.
Press the red button at the top of the launch room. Once the countdown ends, the missile will launch. Watch the rocket propel itself upwards. Leave the launch room.
Move back out to the surface. There will be a newly opened set of doors on the tracks. Go through them and go down to the electrified water.
Find the train on the lower set of tracks. Drive forward into the next area.
Apprehension
Drive the train forward until you reach a platform on your left. Bail out of the train before you reach the soldiers. The train will derail and explode.
Find the ladder leading down to water, and climb down. The ladder will break and you will fall. Swim through the blocked entrance after breaking the board.
Head down to the water where the train crashed. Drag the barrels floating in the water to raise the broken catwalk by placing them underneath. Cross the catwalk into the next room. Follow the stairs and head upwards.
When you try to walk across the platform above the water, it will break. Fall into the water and swim under to the doorway.
Swim to the next room before you run out of oxygen. Find the broken path under the water again, and make your way to the flooded stairway. Turn the red valve at the top of the stairs.
One valve will explode, but the valve above the stairs will extinguish the flames. Move forward until a scientist is killed by a creature.
Clear the gap in the walkway to the other side of the room. Take the ladder in the closet and find the scientist. Talk to him about the creature, and head to the top layer of the room.
Drop down into the cage and grab the crossbow. The cage will drop into the water. You will need to fight the creature. Once the fish is dead, swim to the metal door under the water. Turn the red override valve.
Swim through the metal door and continue to the stairs. Find the door marked with 2 and open it. Find door number 6 and move through to the drum storage area.
Kill the barnacles or avoid them. Move down the stairs and prepare to kill some enemies. Move through the broken doorway and clear the gap.
Turn left before the stairs and the catwalk will break. Jump across the missing pieces of the catwalk and find the sign for the generator room.
Jump in the water and swim to the next area. Walk towards the generator controls and go up the ladder. Press the button on the console and take notice of the pistons.
Jump across each set of pistons without getting flattened by them. When you reach the next catwalk, continue on until you reach a room with enemies. There will be a scientist who will unlock a glass door and let you inside.
Talk to the scientist who will then open the door to the cold room. The coldness of the room will sap your suit, causing damage. Move through as quickly as possible to the vents.
You will not take damage in the vents. Crouch through until you reach a set of stairs next to a blue pipe. Go downwards and follow the hallway.
Use the elevator and find the security guard. He’ll have a message for you, so listen carefully. Kill the new type of enemies in the bunker. They will be agile, so it is easier to use explosions than accuracy.
Follow the stairs to the second floor. There will be an office with surface access controls. Throw the switch and move towards the metal doors marked with a 1.
Enter a room with health and H.E.V. You will be ambushed by soldiers in the dark. They will apprehend you and drag you down a hallway.
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Residue Processing
You will awake with the soldiers, and your weapons, completely gone. Don’t take too much time to look around, because you are in a trash compactor. Use the boxes to escape before you are crushed.
Enter the office on the other side of the compactor and grab your crowbar. Throw the switch to drop the boxes through the floor. Drop down to the floor and fall through the tunnel.
Travel across the canyon until you reach a building. Climb the yellow tower and jump into the water. Use the valves to drain the water and open a tunnel.
Travel through the empty tunnel until you reach a radiated room. Follow the security guard until he is killed by a barnacle. Head into the maintenance room and turn the valve.
Move into waste treatment to where the radiation is. Move up the ladder and use the catwalk. Use the pipes to access a broken vent.
Break the door to the vent and drop down to the ladder marked with a confined space sign. Walk down the hallway until you reach the room with pistons. The catwalk will be broken.
Climb onto a piston and use it to jump to the next one. Avoid the radiation by using the catwalks, pistons, and pipes. Continue until a pipe bursts and the catwalk breaks.
Walk until you reach the next waste treatment room. Walk across the pipes and platforms and jump onto the spinning device. Use it to jump to the door marked with a 3.
Find the room with conveyer belts and drop down. Take one of the belts and drop down to the catwalk below. Jump into the dirty water and follow the current.
Avoid being killed by the water treatment, and climb up the ladder to the walkway. Jump in the water again on the other side and swim down. Swim to the next room.
Keep following the current while avoiding dangerous water treatment devices. There will be many rooms with health and ammo along the way, so feel free to explore. Exit the water in the room with a control room and stopped conveyer belts
Throw the power switch in the control room and start the conveyer belts. Take the stairs to the right of the belts and throw the second power switch in the other office. Turn it off.
The grinder will now be disabled. Follow the conveyer belt.
Use the switch to open the door on the conveyer belt. Please disregard any signs telling you to stay off of the belt. It should be perfectly safe.
Adjust your speed on the belt to avoid the many dangerous traps and pistons. You should reach a big room. Drop down to the next belt and continue forward. Follow the third conveyer belt down to a red door.
Go through the door into a room with a control panel. Use the lever to move a hanging piece of belt to the middle of the room. Use it as a bridge and clear the gap. Follow the next belt towards hazardous fire.
Time your movements and escape the fire. In the next room full of belts, drop down and ride the conveyer belts once more. Avoid any hazards such as mines and grinders.
Once you pass final set of grinders and belts, drop down. Be careful not to fall into the grinder on the floor.
Walk into the high-radiation room and climb up the ladder. Continue into a room with an electric fence. Instead of trying to find a way to the switch, just shoot the power switch through the fence. It will turn off.
Open the door to the electric fence and follow the hallway. Turn left before the lab sign and enter the next area.
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Questionable Ethics
Head into the control room to the left of the door and activate the fire control to burn the creature. Crouch under the metal blast door.
Move down the hall passed the target practice and into the next room. On the left there will be a small room with a dead security guard in it. You can pick up a crossbow here. Move up the stairs to the control room on the right.
Activate the door release on the control panel. The closed door next to the crossbow-room will open. A bullsquid will come out. Press the button to the right of the console to fire.
The weapon will begin to charge up and eventually fire at the bullsquid. If you pay attention closely, the mysterious figure with the suitcase will be visible in the window directly ahead of you. Move back down to ground level.
Continue forward and crouch under another blast door. Walk into the male restroom. Walk until you find a security guard. Listen to him and recruit him. Move down the hall into the lobby.
Kill the soldiers in the lobby. Turn and head towards the door labeled as Lab B. Continue forward into the next area. Walk across the catwalk until you reach another control room.
Activate the emergency Tesla discharge. Wait for it to go off and head to ground level. Move out through the door and kill the soldiers in the hallway.
Move up through the hall until you find a room with another Tesla discharge button. Activate it and wait for it to go off. Head back and through the nearest door to your left. Follow the hall straight ahead and passed the room where the charge went off.
There will be a room marked with a biohazard sign with scientists and a surgical unit inside. The guard will stay back and watch the scientists. Go towards the staircase marked with Lab D. Move up and turn right towards the bullsquid.
Kill the soldiers and bullsquid. Enter the room with red lasers inside of a red pipe. Press the button on the console to fire. In the split in the hallway, go left away from the lasers. Don’t go too far, as a weapon will fire.
You will hear it overcharge and explode. Follow the sound of the explosion and find the dead scientist and guard. Pick up the prototype gun.
Find the room marked with Aux 03 and press the fire button on the console. Follow the blue laser passed Aux 04 and head into the Primary room.
Unplug the shield in the back of the room. Head over to the console and test fire the laser. The laser will burn a hole through the wall. Use it to jump down to the next area.
Use the door to reach the scientists that you saw before. Open the door to the surgical unit. Dodge the blades. Upon contact, they will cause instant death. Press the power button to the right of the machine.
Once the machine is powered off, lead the scientists to the security guard. Follow the scientists to the lobby. They will stop in paranoia. Wait for the scientist to open the containment lockdown door.
Go into the lobby and prepare for a heavy firefight with soldiers. Once you neutralize all of the enemies, the scientist will open the containment lockdown door again. Follow them into the lobby.
After talking to the scientists again, they will open a door to the surface. The scientist will be gunned down. Kill any soldiers and sentries in the parking lot. Head down the road to the right of the lobby into the tunnel.
Fight your way through the tunnel. Walk to the end of the road and press the blue button on the wall.
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Surface Tension
Once the door opens, you will finally be on the surface ready to help. Fight any soldiers nearby and travel down the road.
You will see the dam in the distance. There will be many soldiers surrounding it. Travel onward to the dam. Neutralize the soldiers in any way you can. There are explosive barrels scattered around to make the job easier.
Enter the parking lot to the dam and head straight forward over the water. A helicopter will appear and start shooting at you. Take cover from the chopper and fight it. It will soon fly away after taking damage.
Move forward across the dam again while simultaneously fighting soldiers. Try to take the walkway to the right of the dam. The concrete walkway will collapse and send you plummeting into the water. Find the ladder at the back of the structure and climb up.
Throw the power switch and jump back into the water. There will be another ichthyosaur in the water. Kill it, then continue to the area where the water is bubbling. The current will sweep you into a new area.
Swim away from the dam through the canyon. Get to the shore and find the pipes. Crouch through the left pipe and crawl through. You will come to a wall with a sign that says Lower Canal, move straight ahead.
Take the ladder and drop down to the concrete ledge on the side of the cliff. When you reach the next ladder, climb up.
Be ready to fight multiple houndeyes. Head towards the building marked with a 2. Avoid the high voltage fence and take the road going through the mountain. Use the valve to open the gate.
Fight the soldiers in the area ahead. Once they are dead, walk towards the building. To the left there will be a small control room. Use the button to open the access hatches. Kill the soldiers that will attack after.
Travel towards the gate marked B and head in. Walk through the gorge to the minefield. At the entrance you can find a green box with unlimited grenades. Use the grenades to destroy the mines. Watch your step and make sure you destroy every mine in your path.
Move around the barbed wire and jump on the rocks, be sure to use your running crouch-jump moves to cross these tricky jumps. Use them to access the nearby ladder. Drop down and crawl through the pipe.
Crouch through the pipes until you reach a cliff. Take a long leap to a rock below you on your left. Kill the soldiers on the cliff.
Continue across the ledge while fighting soldiers. Eventually you will come to a broken catwalk. Kill the soldiers on the other side. Make a running jump to the piece of metal sticking out of the other side of the gap. You may need to crouch to make it, don’t forget to quicksave for these difficult jumps.
Head into the control room for health. When you’re done, walk down the pipe to the structure. Descend from the structure while fighting soldiers. Use the catwalk at the bottom to reach the other side of the cliff.
Travel around the ledge until you come to a storage facility door. Press the button and wait for the door to open. Destroy the sentries in the room or avoid the red lasers.
Enter the small office and grab the missile launcher. The helicopter will return when you step outside.
Use the rocks as cover while you battle the helicopter. The missiles are laser guided, so keep your crosshair on the helicopter. There are rocket supplies in the green box, so make sure you resupply. After enough hits with the missile launcher, the helicopter will go down.
Walk around the ledge until you reach a ladder. Climb up and continue your ascent up the cliff. You will reach more gaps in the catwalk.
Jump across the catwalk debris until you reach the next ledge. There will be a pipe leading through the cliff. Crouch through all three pipes and climb up the next ladder.
Walk into the gorge and into another set of pipes to your left. There are multiple directions you can go. In the middle, there is a large yard full of soldiers. Try to avoid them.
Go around the side and avoid gunfire. Swim around the area until soldiers throw explosive barrels at you. Dodge the explosions and head into the pipe at the end of the flooded area. Follow the tunnels until you reach a ladder leading to a road.
When you emerge there will be a tank in front of you. Take cover in the building on the right. The tank will shoot a hole in the wall. Take cover and fight the soldiers. Beware of the tank, it will still try to shoot you.
Destroy the tank with your missile launcher and move forward. Find the small security checkpoint and press the secure access button. Move down the road and watch out for the next tank.
Once the second tank is destroyed, continue forward. Kill any soldiers that get in your way. Enter the road tunnel and jump through the broken window to the office. Press the button on the wall to open the tunnel door.
The off-road area will have landmines, so watch your step. Walk around the building towards the right and find the alley. Avoid the explosive blue lasers.
When you reach the end of the alley, snipers will target you. First they will pick off a scientist who was trying to assist a security guard. You can take out the sniper with a precisely placed grenade, or dodge his shots.
Move across the road and watch out for land mines. Open the door to the building straight ahead. Continue until you find a door to the next area. Head towards the electric fence.
Crouch under the high-voltage fence. Another sniper will target you. Take cover and run in-between shots. He can also be taken out with a grenade. Disable the electric fence by turning off the power on the wall of the building, near the downed tower.
Climb the downed tower to get to the roof. Jump through the broken ceiling to get inside of the building. Find the scientist and talk to him. Go through the door.
You will need to avoid the blue lasers. Do not cause any explosions. Move down the hall and press the green button to open the door. Open the next door and enter the room filled with blue lasers.
Once again, do not cause any explosions. Dodge the lasers one at a time and make your way through the room. Use the objects scattered around the room to get higher up so you can bypass difficult lasers. Now is a good time to remember you can crouch jump and sprint to get an extra boost.
Once you reach the other side of the room, activate the lift. There will be a wooden box that is on the path to hit a blue laser. Destroy the box before it causes an explosion.
Use the lift to sprint-jump to the center of the room. There will be a corpse on the center lift, and you will acquire a new weapon. Ride the lift down to the next level. Fight the soldiers on the street.
Take the walkway to the right of the road. Follow the road with the truck on it. The truck will have a sentry in the back of it. Destroy the sentry and move on.
Follow the road until you are attacked by both aliens and soldiers. Avoid the carpet bombs. A tank will drive out of the tunnel. Destroy the tank and the rest of the hostiles in the area.
Follow the road to the right and find the alley. There will be a sniper in the window. Dodge his shots or kill him. The red door to the high security storage facility will be cracked open. Enter and kill the soldiers.
Go inside and find the set of stairs. Continue forward until you find the Area 3 security checkpoint. Talk to the security guard and wait for him to open the door to the armory.
Take everything you need and exit the armory through the door at the back of the room. Jump across the alley to the platform on the other side. If you fall, you can use the ladder to climb back up quickly. Enter the second red door.
The second floor of the building will be mostly destroyed. Jump down and kill the soldiers on the first floor. Use the destroyed pieces of floor to jump safely across the building.
When you get to the other side, drop down and head to the street. Kill any aliens and soldiers in the area. There will be ammo and rockets available at the green supply cases. Destroy the helicopter and move into the fenced-in helicopter area.
Move across the helicopter pad towards the road. Walk down the hilly road to the tunnel. Enter the door to the left of the tunnel and go up the stairs. Use the mounted tow launcher to destroy the tank on the helicopter pad. There will also be rocket ammo scattered around the room.
Drop back down to the road and move to the helicopter pad. Enter the tunnel where the tank came from. Use the mounted machine gun to kill any enemies that will appear. Run to the end of the tunnel and take the door to the right.
Find the ladder leading into a vent. Follow the vent to the next road. The vent will fall and you’ll be left facing a big enemy. Turn around and sprint. Reach the end of the tunnel as fast as you can.
Exit the tunnel and let the creature stop on his own. He will be distracted by a small tower. Use one of the alien-jumps on the ground to reach the top.
Use the monitor to call in a missile strike on the creature. Use the overhead view on the monitor once again to call in a missile to the small radio tower. It will fall creating a bridge into the parking lot.
Open the tunnel door using the red valve. The road will now be open. Travel forward to the end of the tunnel. Enter the door to your left. Find the security guard listening to the radio.
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Forget About Freeman
Talk to the security guard and listen to the radio. There is a power switch in the room to control a turret. Use it to kill enemies, and disable it when you want to continue.
Kill the enemies on the road and move forward. Take note that the turret will also try to shoot you. Walk towards the doorway marked 38. Turn right and fight the enemies around the corner.
Use the valve on the left to open a path to the sewer. Avoid the red lasers and destroy the sentry. Cross the sewers marked East and West. Crouch through the first west sewer and swim forward.
Exit the sewer and find the bigger body of water. There will be another ichthyosaur inside of it. Crouch under the giant gear and follow the pipes. Crouch under the second gear and kill the soldiers in the next room.
Destroy the turret and take the ladder to the surface. Turn towards the desert and walk towards the red office. Kill the soldiers in the area. Destroy the tank with your missile launcher. Move into the building marked with Lambda Complex.
Turn into the security checkpoint area. Find the sentry in the back of the room and destroy it. Move through the door and into the lift. Take the lift down to the 4th floor. Run through the radiation quickly.
Kill the soldiers by the stairway, but avoid the exploding barrels. Open the door next to the maintenance personnel sign. Destroy the parked tank and enemies in the room.
Find the turret in the hall to the right and destroy it. Run passed the jeep and around the corner. Use the button on the wall to open the tunnel door.
Enter the room with the Lambda sign. Enter the control room and throw the power switch. Board the giant lift and activate it.
Start your descent on the lift. Neutralize any hostiles on the ground level. Move across the room and up the stairs to the next platform. Open the door and drop down to the dead scientist at the broken rail.
Find the room full of shipping crates and be ready to kill the ninja enemies. Since they are very agile, it is easier to kill them with explosions. Move across the room and call the lift surrounded by staircases. Move up the lift.
Walk across the catwalk at the top of the shipping room. Break through the crate full of boxes to the other side of the catwalk. There will be one metal door with a green light. Open it and use the lift to descend into the next area.
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Lambda Core
Let the lift descend. Head into the blue hallway. You will find a room with tons of cover, open space, and health. If you didn’t guess it already, you will be attacked. Kill all the enemies and head up the ladder.
You will be met by a scientist. He will let you inside and inform you that this is the last entrance to the Lambda complex. He will open the next secure door. Head up the stairs and to the left. Find the weapon research scientist.
Acquire the new weapon from the scientist. Feel free to test the gun out in the shooting range. Exit the room and head towards the elevator. Take the elevator down to the Lambda complex. Head towards the red hallway.
Follow the red and yellow hallways and bypass the debris on the way. Open the door at the end of the hall and enter the coolant tank 2 room. Kill all enemies in area. Head to the bottom of the tank and press the green button underwater.
Quickly jump on top of the ledge before it moves upward. Enter the door, pass the blood-stained wall, and turn right. Continue and head back down to the tank. Press another green button on the wall.
Move up to pump station 2. At the back of the room, throw the power switch. Move up the catwalks and go through the fire door. Continue into the nuclear fuel rod storage room. Use the ladder next to the sign.
Dive into the water and press another green button on the wall. You should be done in this area. Climb up and head back into the yellow hall where you entered. Head back to the main room and walk towards the blue hall leading to the coolant tank 1.
Jump into the water in front of the emergency drain cap. Press the next button and call the lift down. Board the elevator and head back up to the top. You should now be able to throw the emergency drain cap switch. Turn it on and head back to the coolant tank.
Once the coolant tanks and pumps are all activated, head back to the main room. Find a split hallway leading to either the maintenance station or the aux tank reactor access. Head left towards the aux tank.
When you enter the aux tank room, kill all of the enemies. Descend from the ladder into the tank. Press the final button and wait for the gate to open. Swim through the water tunnel towards the radiation hazard sign.
Swim upwards towards the fan to get some air. Swim through the next water tunnel. Climb the ladders and ascend upwards. You will soon reach a control room with a power switch. Throw the switch to the reactor and wait for the lasers.
Avoid the lasers from the reactor and continue upwards. Find the burned hole in the wall caused by a laser. Jump through and head down the green hallway.
Climb the ladder up the elevator shaft and into the emergency exit. Enter the next hallway and find the security office. Recruit the guard if you want to. Walk down the hallway and kill the hostiles.
Continue and turn right at the B-201 door. Find the room with the balls of energy. The orange one will teleport you into the reactor. Time it so you end up on the platform. Use the teleportation at the center to ascend upwards.
Continue teleporting onto the above platforms. This may take some practice. If you teleport at the wrong time, you will end up somewhere else and will have to start at the beginning. I recommend quick-saving before each teleportation.
When you reach the top, press the disengage button on the console. A door will open on the device and there will be another place to teleport. Time your jumps to reach the center. Teleport one more time.
Leave the green-lit room and find the red hallway. Climb the ladder from level B and follow the signs to the hazardous materials handling bays. Crouch under the metal door and destroy the turrets. Talk to the scientists in the next room.
Listen to the scientist and guard talk about the creature you have to kill. Another scientist will be waiting for you near a portal. First, walk over to the security guard and let him unlock the armory. Resupply and take anything you want.
Talk to the woman scientist and let her talk about the long-jump module. After you receive the device, exit the room and go through the metal doors. You can practice your long-jump in the big room before the action starts.
The scientist will start to open the portal. He will start the device and a beam will appear in the middle of the room. Enemies will breach the room. Protect the scientist and kill all hostiles that appear.
Once the long startup process is complete, get into position and run into the beam. After some heavy breathing and visual effects, your assignment will be postponed. Enjoy the credits and take satisfaction in knowing you completed Black Mesa.
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