garry's mod
13,845 Members - 0 Chatting, 558 In-Game, 2,306 Online

Counter Strike
67,007 Members - 1 Chatting, 1494 In-Game, 6,334 Online

SPUF
321 Members - 2 Chatting, 9 In-Game, 56 Online

Natural Selection
3,504 Members - 0 Chatting, 120 In-Game, 634 Online

Fortress Forever
2,234 Members - 0 Chatting, 62 In-Game, 364 Online

Hardforum
299 Members - 0 Chatting, 7 In-Game, 80 Online

The [I AM] Open Group!
220 Members - 0 Chatting, 10 In-Game, 55 Online

North America
168 Members - 0 Chatting, 6 In-Game, 39 Online

Wii
102 Members - 0 Chatting, 1 In-Game, 10 Online

Pure Pwnage
2,275 Members - 0 Chatting, 78 In-Game, 417 Online

Day of Defeat
2,138 Members - 0 Chatting, 40 In-Game, 267 Online

Left 4 Dead
7,098 Members - 6 Chatting, 283 In-Game, 1,344 Online

Half-life 2 Trilogy group
1,110 Members - 0 Chatting, 30 In-Game, 158 Online

4chan
7,451 Members - 1 Chatting, 224 In-Game, 1,447 Online

Dystopia
967 Members - 0 Chatting, 45 In-Game, 213 Online

Zombie Master
1,176 Members - 0 Chatting, 43 In-Game, 204 Online

Sourceforts
526 Members - 0 Chatting, 21 In-Game, 90 Online

Red Orchestra
1,712 Members - 0 Chatting, 32 In-Game, 203 Online

TeamFortress2
24,089 Members - 0 Chatting, 557 In-Game, 3,528 Online

This is SPARTA!
3,053 Members - 0 Chatting, 76 In-Game, 410 Online

4chan /b/
1,168 Members - 0 Chatting, 28 In-Game, 237 Online

Wireplay TF2
1,647 Members - 0 Chatting, 21 In-Game, 170 Online

FPSbanana
5,213 Members - 0 Chatting, 237 In-Game, 751 Online

S.T.A.L.K.E.R. Group
56 Members - 0 Chatting, 2 In-Game, 13 Online

Evil Overlords
9 Members - 0 Chatting, 0 In-Game, 4 Online

Edge Gamers Organization
1,170 Members - 0 Chatting, 80 In-Game, 323 Online

Creative Labs
3 Members - 0 Chatting, 0 In-Game, 1 Online

The Groupies
1,394 Members - 0 Chatting, 71 In-Game, 275 Online

Nintendo DS
19 Members - 0 Chatting, 0 In-Game, 1 Online

Call of Duty
329 Members - 0 Chatting, 6 In-Game, 33 Online

S.T.A.L.K.E.R
228 Members - 0 Chatting, 7 In-Game, 38 Online

Source Games
497 Members - 0 Chatting, 24 In-Game, 90 Online

Hidden:Source
1,090 Members - 0 Chatting, 28 In-Game, 168 Online

Team-Fortress 2
1,290 Members - 0 Chatting, 36 In-Game, 186 Online

Half-Life 2: Episode Two
438 Members - 0 Chatting, 12 In-Game, 74 Online

OMGWTFBBQ
11 Members - 0 Chatting, 0 In-Game, 4 Online

Black Mesa
3,116 Members - 0 Chatting, 104 In-Game, 507 Online

Super Smash Bros
158 Members - 0 Chatting, 11 In-Game, 40 Online

Hogwarts army
5 Members - 0 Chatting, 0 In-Game, 0 Online

The Team Fortress 2 Fort
2,763 Members - 0 Chatting, 91 In-Game, 594 Online

Death eaters of Azkaban
3 Members - 0 Chatting, 0 In-Game, 0 Online

OMFG HEAD SHOTS
2,430 Members - 0 Chatting, 68 In-Game, 340 Online

PC Gamer Magazine
5,172 Members - 0 Chatting, 115 In-Game, 856 Online

No Mutants Allowed
261 Members - 0 Chatting, 8 In-Game, 41 Online

MaximumPC
1,759 Members - 0 Chatting, 53 In-Game, 334 Online

BrainBread [ : Source ]
1,194 Members - 0 Chatting, 47 In-Game, 194 Online

Groupofthethingy
168 Members - 0 Chatting, 3 In-Game, 35 Online

Super Nintendo
16 Members - 0 Chatting, 0 In-Game, 2 Online

Doom'ers
15 Members - 0 Chatting, 0 In-Game, 4 Online

Rock, Paper, Shotgun
1,382 Members - 2 Chatting, 24 In-Game, 228 Online

Doorman is God
62,249 Members - 1 Chatting, 1659 In-Game, 7,805 Online

Ron Paul 2008
1,108 Members - 0 Chatting, 30 In-Game, 179 Online

Nintendo Fans
11 Members - 0 Chatting, 0 In-Game, 4 Online

Team AG (DK)
821 Members - 0 Chatting, 23 In-Game, 99 Online

LOL LOL LOL
12 Members - 0 Chatting, 0 In-Game, 3 Online

Cujo
933 Members - 0 Chatting, 42 In-Game, 200 Online

CZ;CS殺手terry*{TW}*
19,881 Members - 0 Chatting, 1010 In-Game, 3,439 Online

The Teamwork Movement
145,935 Members - 0 Chatting, 3586 In-Game, 17,349 Online

HL2: Portal
4,177 Members - 0 Chatting, 97 In-Game, 551 Online

PuffyCloud
1,045 Members - 0 Chatting, 42 In-Game, 197 Online

hARDSTYLE <3
1,019 Members - 0 Chatting, 47 In-Game, 162 Online

Counter-Strike Pro Mod
42,629 Members - 0 Chatting, 1126 In-Game, 5,482 Online

TF2 Friends achievement
3 Members - 0 Chatting, 0 In-Game, 1 Online

Crysis-x
41 Members - 0 Chatting, 2 In-Game, 4 Online

Triple vVv's Group
846 Members - 0 Chatting, 34 In-Game, 148 Online

Zombie Españoles -[ZE]-
1,970 Members - 0 Chatting, 63 In-Game, 270 Online

Frontlines: Fuel of War
25 Members - 0 Chatting, 1 In-Game, 2 Online

Team Fortress 2
36,430 Members - 0 Chatting, 1167 In-Game, 5,897 Online

Half-Life Files
903 Members - 0 Chatting, 32 In-Game, 121 Online

The Pirate Ninja Alliance
102 Members - 0 Chatting, 3 In-Game, 20 Online

The SUF Guys
26 Members - 0 Chatting, 1 In-Game, 8 Online

Just Some Game Group
1,556 Members - 0 Chatting, 81 In-Game, 293 Online

Condition Zéro FR
14,036 Members - 0 Chatting, 407 In-Game, 1,921 Online

Half Life 2 Episode Two
669 Members - 0 Chatting, 32 In-Game, 103 Online

`~Max Payne~`
25 Members - 0 Chatting, 0 In-Game, 2 Online

GmodVideos
639 Members - 0 Chatting, 8 In-Game, 65 Online

LeVeL 27
32 Members - 0 Chatting, 3 In-Game, 6 Online

Team Fortress 2 Achiever's
126 Members - 0 Chatting, 6 In-Game, 30 Online

House of Gamers
1,697 Members - 0 Chatting, 46 In-Game, 210 Online

Nintendo <3
141 Members - 0 Chatting, 3 In-Game, 15 Online

Wrench and Cake
2,416 Members - 0 Chatting, 73 In-Game, 421 Online

The Organisers
5,641 Members - 0 Chatting, 334 In-Game, 1,243 Online

Dispenser Goes Here
42 Members - 0 Chatting, 2 In-Game, 15 Online

The Dark Knight
388 Members - 0 Chatting, 22 In-Game, 65 Online

moola
337 Members - 0 Chatting, 23 In-Game, 87 Online

Audiosurf
1,694 Members - 0 Chatting, 56 In-Game, 312 Online

Heartbreaker
105 Members - 0 Chatting, 2 In-Game, 19 Online

Dirty Jobs
16 Members - 0 Chatting, 2 In-Game, 5 Online

Kwari
340 Members - 0 Chatting, 9 In-Game, 42 Online

2fort2furious Community
1,007 Members - 0 Chatting, 71 In-Game, 312 Online

Titan Quest and Immortal Throne
91 Members - 0 Chatting, 3 In-Game, 21 Online

ExtremePaintbrawl
7 Members - 0 Chatting, 0 In-Game, 2 Online

Vinyl > Cd
4 Members - 0 Chatting, 0 In-Game, 0 Online

Friends of Dark Army
3,242 Members - 0 Chatting, 97 In-Game, 568 Online

Blue_ Eagles
241 Members - 0 Chatting, 4 In-Game, 27 Online

The SPUF Guys
131 Members - 4 Chatting, 4 In-Game, 25 Online

Unforeseen Consequences
151 Members - 0 Chatting, 3 In-Game, 26 Online

Rest of World
8,415 Members - 4 Chatting, 258 In-Game, 1,298 Online

Aion: The Tower of Eternity (Official)
4,895 Members - 0 Chatting, 186 In-Game, 929 Online

KillDeathRatio
20 Members - 0 Chatting, 0 In-Game, 1 Online

Warorphans.net
872 Members - 0 Chatting, 53 In-Game, 188 Online

The Medic Group
1,107 Members - 0 Chatting, 54 In-Game, 232 Online

2 fast 1 shot
77 Members - 0 Chatting, 2 In-Game, 5 Online

Comie Con
64 Members - 0 Chatting, 5 In-Game, 16 Online

Dark-XtC
13,083 Members - 1 Chatting, 934 In-Game, 3,530 Online

Loch-Ness
424 Members - 0 Chatting, 26 In-Game, 101 Online

лига Team Fortress 2
3,965 Members - 0 Chatting, 172 In-Game, 694 Online

War of the Worlds
2,037 Members - 0 Chatting, 62 In-Game, 296 Online

Endless War
613 Members - 0 Chatting, 11 In-Game, 69 Online

animal crossing wi-fi club
5 Members - 0 Chatting, 0 In-Game, 1 Online

The Gaming Syndicate Community
946 Members - 0 Chatting, 108 In-Game, 289 Online

Shadow Eagles
25 Members - 0 Chatting, 0 In-Game, 6 Online

#THE RESISTANCE
1,355 Members - 0 Chatting, 72 In-Game, 235 Online

Turtle Cake
69 Members - 0 Chatting, 6 In-Game, 27 Online

-THE HELIXIAN GUARD-
104 Members - 0 Chatting, 9 In-Game, 32 Online