On PS2 i've got :
Full Spectrum Warrior
Splinter Cell
Need for speed underground 1 and 2
EA Rugby
GTA Vice city
Tony hawks pro skater 3
had Killzone but sold it for reasons i cant remember, same with matt hoffmans bmx 2
On PC:
nearly every command and conquer title there is. although down through the years ive lost most of em/broken em
Unreal tournament (the original and best, 100 frag last man standing deathmatch anyone? with 8 freakin people)
40k fire warrior
40k dawn of war
star trek voyager elite force
sim city 3000
starfleet academy
dungeon keeper
the sims
star trek: birth of the federation
shogun: total war
worms armageddon
i lost Theme hospital and Age of empires-2 years ago, which still pisses me off