Freedom Fortress

The Freedom Fortress is the last building you can buy in the game. It will be the main goal of the game as its the hardest building to get and it has a percentage that you build slowly instead of just buying it once and getting the achievement. To get it you need bunnies and golden carrots which you get from the bunny and lucky bunnies respectively. You need 100 Freedom Fortresses to get the achievement 'Freedom!'.