After a long wait for the disappointing Last Stand 3, I've been desperately trying to find a fun and addictive new free zombie game. I originally dismissed Zombie Lane as a lame Facebook app that forces you to spend money to play, but it has grown on me over the last week (especially after the Christmas update which added new missions and stuff to buy). The only problem is Zombie Lane is not the best time passer. It's a great game to have on your phone for random bits of procrastination, but having to wait five minutes to perform one task can get kind of tedious.
Infected is more of the fast paced kind of game I've been looking for. It's a fun twist on the tower defense genre where you use police officers as torrents to defend citizens from zombies. The app can even access your Facebook friends turning them into the helpless victims. Like any tower defense game you can upgrade your torrents, buy better armed police agents, and use random weapons to bomb zombie hordes. The game has a good mix of free upgrades and features an online multi-player mode.