there are four endings to the game. Cure Zombie Virus (Must have lab [duh], research all lab options, and have 10 Scientists), Close the Evil Portal (Must reclaim large graveyard and have 15 people), Draft a Constitution (Must reclaim City Hall and have 5 leaders), and Reclaim Entire Map.
Entertaining, albeit unoriginal game. By far the biggest problem, and it's a major one, is the fact that often, especially in the later levels, the game failed to register when I click on something. To get around this, I ended up double clicking everything, but this, too, failed sometimes. Very serious problem for a game who's main objective requires accuracy with the mouse, as well as timing.
Fun game but make money harder to accumulate in the future.. I never had to buy anything (except for potions) and didn't use the Escape Wings after floor 25. Also make it a little more difficult next time. I only died once and that was on floor 7 of my first time through. Good game though. 5/5