TF2
GTA San Andreas
Ultima Online
Medieval 2 Total war
Battlefield 2142
Planetside


er thats it. only playing TF2 atm.

In no particular order:

(deep breath)

The Orange Box
Dark Messiah Of Might And Magic
Battlefield 1942/Vietnam/2/2142
World Of Warcraft
Day Of The Tentacle
Sam and Max Hit The Road
Sam and Max Episodes
Stalker:Shadow of Chernobyl
Oblivion
Defcon
Bioshock
Jade Empire
Geometry Wars
Beyond Good And Evil
Sin Episodes(!)
CSS
DoDS
Crysis
Gary's Mod
Warcraft III+Frozen Throne
World In Conflict
Total War:Medieval II
CoD 2+4
Deus Ex
F.E.A.R
Company Of Heroes
GTA:San Andreas
Enemy Territory:Quake Wars.
Doom/Doom 2/Heretic/Hexen (all running under Doomsday engine)
+ A whole bunch of emulated stuff nes/snes/n64 etc.

Orange Box
CSS
Half Life Source
A bunch of HL2 mods
Jurrasic Park Operation Genesis (not mine)
Trespasser (not mine)
Orbiter space flight simulator.

And a few remenants of uninstalled games: DoW series, C&C First Decade save files, Sims 2

And a ps1 and a rubbish ps2 emulator

Even if I had all the space you seem to have Choronzon, I'd probably only play a few games at a time.

Same here, but my two boys play on my PC too.

Orange box
DODs
Tomb Raider Ann
Quake 4
dawn or war
Half life Plus 2 and haf life blue and opps
CSS

Does Porn count .

dod
cod cod2
unreal tournement
quake3
guildwars
world in conflict
medievil total war,rome total war
warhammer daw
tf2,tf1
cs,css,dods,hl1,hl2,
enemy territory(don't buy a right let down)
cod4 modern warfair
race wtcc game(got it free with my vidcard)
and many more.......

Battlefield 2
Battlefield 2142
Orange box
and demos

The orange box
Full spectrum warrior
Full Spectrum warrior ten hammers
Half life
G Mod

Mods:
Hl2: Riot act
School adventures
Sven Co-op
Zombie Master

Pop Cap
Peggle
Bejeweled 2

mine are:

Various source mods
CS:S
Crimsonland (amazing little game)
EV Nova
Fable - The Lost Chapters
Garry's Mod
Guild Wars
HL
HL2
HL2: Ep1
HL2:Ep2
HL2:Lost coast
BF1942
Portal
Quake 4
Rumble Box
n
TF2

Lots of games get uninstalled and reinstalled all the time though...the above is all on my laptop, my main rig's broken atm and I haven't got a clue what's wrong with it :S

Is that any good? im tempted to get it.

Also i have hg:l to be installed