In Island Experiment, the only way you can get more energy is to complete different tasks. In particular, that would mean producing as much food as possible by planting a lot of fields. With more fields, that means more food. Make sure to upgrade your fields when applicable so you could ensure yourself of a lot of energy through the food you produce.
Not only will this set you on the right track in Island Experiment, this will also give you more coins, more gems, and more experience points. You also get to advance the game’s storylines by playing the main missions, and unlock several extras along the way. These would include more space to explore, and more new buildings to construct.
Once you’ve constructed a building, you’ll have a chance to upgrade it when the opportunity arises. Do not forget to do this, as this will only help you gain more resources, while also earning more coins and getting more rewards.
Plants and berries should be harvested, but first you’ll want to clear them out and gather them up. This will allow you to have more space for buildings.
One of the hardest things to do in Island Experiment is to get more keys, as supplies of these keys is very limited. The only way to do this is to keep completing tasks and keep completing story missions. Otherwise, you’ll be scratching and clawing to get those keys with little success at all.
Gems are the game’s premium currency, and there are a few ways you can earn more without paying a real-life cent. First, you can connect your game to Facebook. Second, you can upgrade within a level, and third, you can complete any mission in the game that specifically states you’ll be getting gems as a reward.
Right before you end your Island Experiment gaming for the day, don’t forget to set up your larger food fields to grow. This would allow you to return to the game the day after with the task completed. Also, you want to set shorter-term jobs up in the middle of your gaming session so they’ll be all complete by the time you end your session.