Thank you R2 for having this on your favorites, because I happen to know that that's Haunt the House! I'll wait to put up my game until you confirm that I'm right.
To the mods: I'm not entirely sure where this would belong so if it gets moved to the Flash Games subforum please reply saying that it was moved.
I'm thinking of a zombie survival game (that really narrowed it down XD). You're defending in a house with other people. You can upgrade your weapons and and the NPC's as well. You're defending something that's on top of the house. Good luck.