Concepts

This concept involves the player choosing between either being an industrial or environmental player. 

If they choose to be the industrial player they have powers such as diggers and machines and their goal is to use up the entire tree which dictates most of the screen and do this as fast as possible. 

As the environmentalist they would have powers such as being able to direct animals to attack the industrial players and their aim would be to save and nurture the tree. Getting the tree to a certain strength means the roots of the tree will eventually kill the industrialists space.

Both playing options are based around doing each goal in the fastest amount of time while earning points. The catch is that although it is easier to destroy the tree, you gain more points being the environmentalist.

This concept is based on solar energy. It is a basic tower defence game in the first instance, where you can lay down solar panels to create more sun which gives you power ups and such to try and defeat the enemy. This might lead to saving money etc etc.

In second version of this game laying down solar panels helps to keep the water from rising, linking the use of good power to slowing/ stopping global warming. You would have to constantly be repairing your panels and upgrading them to win.