Left 4 Dead
6033 Members - 14 Chatting, 409 In-Game, 1514 Online

Mine-Dog.net
242 Members - 0 Chatting, 27 In-Game, 90 Online

4chan
7048 Members - 0 Chatting, 362 In-Game, 1684 Online

Zombie Master
1144 Members - 0 Chatting, 90 In-Game, 275 Online

FacepunchStudios
12811 Members - 5 Chatting, 944 In-Game, 3134 Online

Striker Elites
12 Members - 0 Chatting, 0 In-Game, 2 Online

Quivering Flesh
25 Members - 0 Chatting, 2 In-Game, 10 Online

Ghost Drifter: The movie
4 Members - 0 Chatting, 0 In-Game, 1 Online

Bioshock Fan Club
199 Members - 0 Chatting, 5 In-Game, 25 Online

Doorman is God
63065 Members - 0 Chatting, 2596 In-Game, 9817 Online

The [-Q-] Clan [Public Group]
7447 Members - 0 Chatting, 285 In-Game, 1342 Online

Bioshock Multi-Player Mod
23 Members - 0 Chatting, 1 In-Game, 5 Online

Sax's Server
57 Members - 0 Chatting, 9 In-Game, 17 Online

2fort2furious Community
858 Members - 0 Chatting, 84 In-Game, 350 Online

Taco n' Banana
316 Members - 0 Chatting, 66 In-Game, 122 Online

The Zombie Panic Source Group
966 Members - 0 Chatting, 72 In-Game, 250 Online

[TnB CoD4]
7 Members - 0 Chatting, 1 In-Game, 1 Online

War Hammer 40k Mod
20 Members - 0 Chatting, 2 In-Game, 11 Online

Taco'N'Banana Team Fortress 2 Team
16 Members - 0 Chatting, 3 In-Game, 7 Online

Herb's Van
22 Members - 0 Chatting, 6 In-Game, 12 Online

MMM BAGEL CLUB
115 Members - 0 Chatting, 25 In-Game, 56 Online