Fate of the World
I've had this game for years. In fact, it might be one of the first games I owned on Steam. And I play it once in a blue moon. It's basically "Fix Climate Change: The Game." It's meant to be something of an educational game. But holy shit, it's hard to actually win a game. Either the global temperature rises too high that the whole world goes to shit, the economy collapses, you run out money, or you piss off a country so much that it bans you from making changes in it anymore (and then lose if you're banned from too many countries).
I've figured out some strategies to win, though. Starting reforesting IMMEDIATELY in South American and South Asia. This at least curbs the collapse of the rain forests, which raises CO2 levels. Also reduce coal use in India and China as soon as possible. Of course, if you do a global ban on coal, then you risk either peak oil or the economy tanking. Helping raise the GDP of poorer nations like Africa and India helps in the long run, too.
The one thing I hate is, in order to keep the global temperature from rising too high where it causes a game over (like 3 degrees higher), you pretty much NEED to use sulphate aerosols to force the temperature down. A lot of countries hate you for it and it wrecks the environment if you keep it running too long. But JUST to win a game, it's almost a necessity.
Funny enough, I REALLY want to see the Spiffing Brit (on YouTube) play this. I can't imagine what kind of crazy exploits he could find.