Fort Zombie was just released for the PC on Halloween, and there is already an update that just came out to make the game a little more awesome. Included in the update is additional weapons, expanded town properties, and new mission locations.
On top of those the update to Fort Zombie will enhance a variety of game aspects across the board, introducing more sound options, a mid-mission healing system, and improved interactions with weapons and other game objects. You can buy the game online for the PC right now for only $9.99.