Earth Crisis is a free, turn-based strategy game for Android about fighting climate change. It has been created by Jacob Petersen, a Toronto-based climate scientist and independent game designer. His goal was to make a game that is fun and engaging but also gets people experience the threat of climate change. "The effects of climate change happens on the scale of decades, but with a game I can compress time so that players can experience what it will be like for us in the future."
The goal of the game is to lower carbon dioxide levels in the atmosphere to 350 ppm. This is the highest level of carbon dioxide that scientists believe is safe. Any more and we are likely suffer serious consequences. Global carbon dioxide is current at 392 ppm. This is the starting point of the game.
In the game you lower carbon dioxide emissions by deploying agents. These agents can be activists, scientists, entrepreneurs and more. Each agent has different things they are good at. For example, entrepreneurs are good at lowering emissions, and scientists are good at building credibility. Credibility is your basic resource in the game. If people do not believe you then you will not be able to lower emissions.
You can improve your agents and unlock stronger ones using advancements. Advancements are specializations and improvements that you can implement. For example, environmental politics is an advancement that locks politicians as agents, and renewable energy makes entrepreneurs more effective at lowering emission. Your choice of advancements shapes how you play the game.
Opposing you are the climate change deniers. These can be corrupt lobbyists, misguided skeptics and more. Each will hinder you in a unique way. For example, skeptics will destroy your reserves of credibility and shills enhance and protect other deniers.
Climate change builds throughout the game. It manifests as disasters that tear apart regions of the world. First driving regions into crisis and finally into anarchy. If the entire world descends into anarchy you lose. Fortunately, disasters will generate credibility for you. It is hard to deny a flooded city.
You can get the game from Google Play.