I took the liberty of listing all the games/programs you fellas want.
'The' List
- Oolite.
- Bioware Infinity engine (clone)
- Quake III/Quake II/Quake I
- Heretic I/II
- Doom
- UFO Enemy Unknown
- Terror from the Deep
- Nethack
- Wormux
- Abuse
- PSX
- DosBox
- Steel Panthers (and other similiar SSI games)
- Diablo
- Age of Rifles
- Settlers 2 (Dosbox, port or remake)
- Homeowrld
- Freespace2
- Sauerbraten
- Descent/Descent II
- Simcity (http://www.donhopkins.com/home/micropolis/)
- GTA 1/GTA II
- Verge (http://verge-rpg.com)
- gemRB (Baldurs Gate I/II, Planescape Torment, Icewind Dale I/II)
- Lordsawar (Warlords II clone)
- Netpanzer (http://netpanzer.berlios.de/index.html)
- Aleph One
- Marathon I/II/III
- Open Source Project
- Lucas Arts X-Wing Space Simulator
- Aces over the Pacific
- Strike Commander
- FreeCiv
- Slave Zero
- Dungeon Siege
- Albion
- Might and Magic (?)
- Total Annihilation/Total Annihilation: Spring (?)
- Blade Runner (Through Bochs)
- Metal Gear Solid (the guy who suggested this was on the money! It would have to be a PSX emulated game)
- Resident Evil
- S.C.O.U.R.G.E. (http://www.scourgeweb.org)
- Glest (http://www.glest.org)
- Slither Link (http://en.wikipedia.org/wiki/Slitherlink)
- ScummVM
- TripleA (http://triplea.sourceforge.net/mywiki)
- Text-based sports general manager simulation (ie. Front Office Manager)
- Odyssey II
- Jagged Alliance II
- STUNTS (http://www.ultimatestunts.nl/index.php?page=0&lang=en)
- Cave Story
- Idle
- Armagetron (http://armagetronad.net/index.php)
- GL Tron (http://www.gltron.org/)
- Noiz2sa
- SuperTux
- Rrootage
- TeeWars (http://www.teewars.com/)
- Warzone2100
- Me and My Katamari (clone)
- Doom
- Duke Nukem
- Carmageddon (?)
- System Shock/System Shock II (?)
- Moto Racer 2 (PSX)
- Allegro
- Ultima IV: Quest of the Avatar (And earlier versions)
- Chromium BSU (Tech demo)
- Phillips CD-I Games (?)
- Daphane Emulated Arcade laserdisk Games (?)
- Wargus (Warcraft II)
- Blood
- CUBE/CUBE II (?) (http://cubeengine.com)
- Battle for Wesnoth
- Kenta Cho's Games
- UT2004 (?)
- BattleZone
- Tuxracer
- Blocktrix
- Zdoom
- Counter Strike
- Counter Strike 2d
- Liero
- Soldier of Fortune
- Mortal Kombat trilogy (PC) (?)
- Battle Chess
- Crazy Taxi I
- Chess
- Punishment I/II
- Flywrench
- Trilby: Art of Theft (I'm sure Yahtzee would give you the code
)
- You got the grapeling hook (what?)
- Clean Asia
- Warning Forever
- Knytt Stories
- Noitulove
- Merry Gear Solid (...)
- PokerTH
- Supertuxkart
- OpenAstroMenace
- Frozen Bubble
- Paintown
- Stargus (for native Starcraft)
- FretsOnFire
- Starwars:TA
- Torcs
- Palomino Flight Simulator
- Vega Strike
- World of Padman
- Warsow
- Stormbaan Coureur
- Globulation 2
- Extreme Tux Racer
- SoulFu
- Blob Wars: Metal Blob Solid
- Ecksdee
- Amoebax
- Parallel Universe
- MTP-Target
- Bomberclone
- Hedgewars (for sp)
- iteam
- AssaultCube
- Pingus
- SecretMaryoChronicles
- The Goonies
- Yoda Soccer / Open World Soccer
- Portalized (should be released soon)
- Blood Frontier
- Bos Wars
- FishFillets NG
- Privateer Universe
- Top10
- F1 Spirit
- Briquolo
- Stendhal
- Mars: Land of no mercy
- Egoboo
- Nimuh
- Flightgear
- FIFE (Zero Project, when it is released, or OpenAnno)
- Ghouls and ghosts remix
- DreamChess
- VDrift
- D2X-XL
- Tremulous
- Simultrans
- njam
- Thunder'n'Lightning
(?) = Whether possible or not because of system requirements or source code.
Ok thats the full list. Please tell me if I have doubled or not.