Press TILDE to open the developer console and enter any of the following cheats:
Access All Levels: unlock all
Extra Bloody slow deaths: nightmare
Mission will end as if it has been successfully completed: completemission
Third person view: behindview <0 or 1>
Flight mode: ghost
Disable flight: walk
Full ammunition: fullammo
Record demo: demorec
Stop recording: stopdemo
Play demo: demoplay
God mode for player: god
God mode for team: godteam
God mode for terrorists: godterro
God mode for hostages: godhostage 1
Disable god mode hostages: godhostage 2
All the god modes: godall
Game never ends: toggleunlimitedpractice
Walk through entities: togglecollision
View threat information: togglethreatinfo
Kill all terrorists: neutralizeterro
Disarm all bombs: disarmbombs
Deactivate IO devices: deactivateiodevice
Rescue all hostages: rescutehostage
Disable morality: disablemorality
Summon all terrorists: callterro
Invisible to terrorists: playerinvisible
Terrorists surrender on sight: tsurrender
Terrorists shoot wildly: tsprayfire
Terrorists only fire at you: taimedfire
Terrorists all run away: trunaway
Terrorists go back to normal: tnothreat
See all terrorists on map: rendspot
Hostage threat information: togglehostagethreat
Set hostage position: sethpos <0-5> settings are 0 standing, 1 kneeling, 2 prone, 3 fetal, 4 crouched, 5 random
Reset hostage threat: resetthreat
Next hostage animation: hna
Previous hostage animation: hpa
Animate hostage: hp <0 or 1> settings are 0 for no loop, 1 for looping
Show field of viision: showfov
Show weapon direction: gundirection
Show terrorist/hostage routes: route
Show all map routes: routeall
Remove all NPCs: killthemall
Remove all terrorists: killterro
Remove all hostages: killhostage
Kill all Rainbow operatives: killrainbow
Remove opponents: killpawns
Game modes: sgi
Resets all cheats: resetmeall
Quit game: quit