One of the reoccurring themes in the first-person shooter and survival horror genres is that of good old fashioned zombie shooting. While the genre has plenty of hits and misses, there are some great titles out there. I thought I'd toss it out there for discussion and see what we're all playing. My picks? Zombie Panic!: Source: This is an oldie, but a goodie, and totally free. It is actually a Source-based remake of an earlier title. It is multiplayer and you can either be a survivor (human) or a zombie. The humans move faster and can use tools (like melee weapons) and firearms. The zombies are slower, but can soak up a lot of damage. One of the zombies (randomly picked) is called the Carrier. He can infect humans with the zombie disease and they will turn into a zombie after a set amount of time. The game modes are survival (kill all the zombies to win), objective (complete a series of objectives), hard core (which is more Carriers and higher infection rates) and ZPA (which is kind of a competition mode). Alas, the game isn't real active these days, but some rounds can be fun. Contagion: This is from the same makers of the aforementioned title, but it is a paid game. It has similar mechanics and concepts, but is darker in tone and has additional game modes. One of which is the "Hunted" mode where you are fighting both the zombies and your fellow survivors. No More Room in Hell: This is an awesome, free title that features slow, Romero-style zombies. You can only play as a human and not a zombie. There are a ton of different tools, items, and weapons that can be used to survive (in survival maps) and/or complete an objective (objective-style). The game is still receiving active updates and support and a lot people play it. So, how about you; do you have a title to suggest? Thanks!