Gamespy's top 20 games being played right now:
1. Half Life - 35687 servers, 83540 players
2. Wolfenstein: Enemy Territory - 2724 servers, 8661 players
3. Battlefield 1942 - 2654 servers, 7879 players
4. Americas Army: Special Forces - 1540 servers, 7321 players
5. Call of Duty: United Offensive - 1898 servers, 7084 players
6. Call of Duty - 3198 servers, 6748 players
7. Neverwinter Nights - 1589 servers, 6667 players
8. Unreal Tournament 2004 - 3650 servers, 4845 players
9. Medal of Honor Allied Assault - 2501 servers, 4845 players
10. Quake 3: Arena - 2464 servers, 4320 players
11. Medal of Honor: Allied Assault Spearhead - 1297 servers, 4219 players
12. Battlefield: Vietnam - 1620 servers, 4117 players
13. Soldier of Fortune 2 - 1572 servers, 3573 players
14. Unreal Tournament - 2616 servers, 3143 players
15. Halo: Combat Evolved - 622 servers, 2558 players
16. Star Wars Jedi Knight: Jedi Academy - 615 servers, 1317 players
17. Vietcong - 368 servers, 981 players
18. Quake II - 643 servers, 684 players
19. Star Wars: Battlefront (PC) - 237 servers, 632 players
20. Halo Demo - 164 servers, 625 players
1. Half Life - 35687 servers, 83540 players
2. Wolfenstein: Enemy Territory - 2724 servers, 8661 players
3. Battlefield 1942 - 2654 servers, 7879 players
4. Americas Army: Special Forces - 1540 servers, 7321 players
5. Call of Duty: United Offensive - 1898 servers, 7084 players
6. Call of Duty - 3198 servers, 6748 players
7. Neverwinter Nights - 1589 servers, 6667 players
8. Unreal Tournament 2004 - 3650 servers, 4845 players
9. Medal of Honor Allied Assault - 2501 servers, 4845 players
10. Quake 3: Arena - 2464 servers, 4320 players
11. Medal of Honor: Allied Assault Spearhead - 1297 servers, 4219 players
12. Battlefield: Vietnam - 1620 servers, 4117 players
13. Soldier of Fortune 2 - 1572 servers, 3573 players
14. Unreal Tournament - 2616 servers, 3143 players
15. Halo: Combat Evolved - 622 servers, 2558 players
16. Star Wars Jedi Knight: Jedi Academy - 615 servers, 1317 players
17. Vietcong - 368 servers, 981 players
18. Quake II - 643 servers, 684 players
19. Star Wars: Battlefront (PC) - 237 servers, 632 players
20. Halo Demo - 164 servers, 625 players