* Quicke list, I really need to make an official list since this question keeps popping up ;)
PC GAMES
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Aquaria - completely unheard of amazing indie game on steam)
Celestial Impact - FREE open source game that blows away all 'destructible environment' games away)
Warsow - FREE open source game that is even more twitch than quake 3)
Killing Floor - recently went commercial and is selling for $20 on Steam, amazingly hardcore game, rarity these days.
Left 4 Dead/ Half Life 2/Team Fortress 2/Portal - Just get the Valve Complete Pack!
Battlefield 2
Fallout 3
World of Goo
Quake Live - FREE classic quake goodness
Tribes 2 Next - classic fun for free now!
Legions: Fallen Empire - Free similar to tribes
Crysis/Warhead - decent games with great graphics and some really sweet mods coming!
COD4/COD:WW - both decent FPS games with some great MODS
CounterStrike: Source - good old school game with tons of mods, custom game modes, and maps (favorite being zombie chase gamemode)
Thief 1 & 2
FREE MODS
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Pirates, Vikings, Knights II
GoldenEye Source
Hidden Source
Shadows of Lylat (shhh, keep quiet)
Project AM2R (shhh, keep quiet)
Black Sierra
Angels Fall First:Planetstorm
Modular Combat
L4D maps/mods (l4dmods.com)
way too many to list (moddb.com)
Current Favorites:
Wii - Muramasa, MH3, Metroid Trilogy, RS2, Okami, RE4, COD, Dead Space, Scarface
PC - L4D, TF2, BFBC2, Killing Floor, Aquaria, Warsow, many UDK indie games
Mods - MechWarrior:Living Legends, Star Wars: Galatic Warfare, PVKII, Goldeneye Source, L4D mods
PS3 - Demon Souls, Way of the Samurai 3
Social Modding Club: ModDb | Steam
