The Apocalyptic Terrarium Challenge

Change log: I updated the milestones to allow them to be either calendar based (once a week... once every three weeks... etc.) or spending based (remove X amount of money). Tracking the amount of money you made to figure out what you could purchase was too difficult. I also updated the purchasing of power-generating objects to be every time you make a 5k donation, not limited to once a week.

Hopefully both of these changes should allow for more rapid expansion once proper money-making strategies are established in your game.