List of games that do not use the CEG component of steamworks

games-nosteamworks-ceg.txt

# Source: http://www.gog.com/forum/general/list_of_drmfree_games_on_steam/page1

1000 Amps 
All Zombies Must Die* (run ShippingPC-Bzb2Game.exe) 
Alpha Protocol (run Binaries\APGame.exe, NOT APLauncher.exe) 
Analogue: A Hate Story 
A.R.E.S.: Extinction Agenda (error message can be dismissed) 
Atom Zombie Smasher (run atom_net.exe, NOT atomzombiesmasher.exe) 
Aztaka 
Basement Collection, The (doesn't show unlocked content – see here) 
Bastion 
BEEP 
Ben There, Dan That 
Binding of Isaac, The 
Blackwell series (achievements disabled) 
Blocks That Matter 
Bob Came in Pieces 
Botanicula 
Breath of Death VII 
Broken Sword 2 
Cogs 
Containment 
Cortex Command 
Crayon Physics Deluxe 
Crusader Kings 
Crusader Kings 2 
Cthulhu Saves the World 
Dangerous High School Girls in Trouble! 
Dangerous Waters 
Data Jammers: FastForward 
DCS: Black Shark 
DEFCON 
Divine Divinity 
Dream Machine, The 
Dungeon Siege 2 (but not 1 or 3) 
Dungeons of Dredmor (mods installed through the Steam Workshop aren't available) 
Elven Legacy 
Ether Vapor Remaster 
Eufloria 
Fable: The Lost Chapters 
Faerie Solitaire 
Fallout 3 
Far Cry 2 
Frozen Synapse 
Galactic Civilizations II: Ultimate Edition 
Gemini Rue 
Grand Theft Auto 
Grand Theft Auto 2 
Gratuitous Space Battles 
Hacker Evolution Duality 
Home 
Jamestown 
Legend of Grimrock (will launch Steam if it can be found, but runs if it cannot – see here) 
Legendary 
Lightfish* 
Lone Survivor 
Lucid 
Lunar Flight 
Machinarium 
Majesty HD (but not Majesty Gold – see here) 
Majesty 2 Collection 
Mini Ninjas 
Misadventures of P.B. Winterbottom, The 
?Mount and Blade: Warband (version 1.153 was CEG free, 1.154 isn't; Steam CD key can be used to redeem a DRM-free copy – see here)
Multiwinia 
Nimbus 
Noitu Love 2: Devolution 
NyxQuest: Kindred Spirits 
Oddworld: Munch's Oddysee 
Oddworld: Stranger's Wrath HD 
Painkiller Redemption 
Path, The 
PixelJunk Eden* (error message can be dismissed) 
Polynomial, The 
Psychonauts 
Puzzle Quest 2 
Rayman Origins 
Really Big Sky 
Rock of Ages* 
Saira 
Samorost 2 
Sega Genesis / Mega Drive Classics 
Serious Sam 2 (but neither of the Serious Sam HD Encounters) 
Sniper Elite 
Snuggle Truck 
SOL: Exodus 
Sonic the Hedgehog 4 – Episode I (but not Episode II) 
Space Rangers 
Super Crate Box 
Super Laser Racer 
Super Meat Boy 
Tales of Monkey Island – Episode 1 (but not the remaining episodes) 
Thief: The Dark Project 
Thief II: The Metal Age 
Time, Gentlemen, Please! 
TRAUMA 
Trapped Dead 
Unstoppable Gorg
Vertex Dispenser
Victoria II 
Virus Named TOM, A 
VVVVVV 
Windosill 
Wizorb 
Worms Pinball

# All DOSBox games on Steam, including those not on this list, are DRM-free. 
Commander Keen series 
Deathkings of the Dark Citadel 
Doom, Doom II, Master Levels and Final Doom 
Heretic 
Hexen 
King's Quest and Space Quest Collections (the launcher uses CEG, the individual games are DOSBoxed) 
Star Wars: Dark Forces 
X-COM: UFO Defense, Terror from the Deep and Apocalypse 
Wolfenstein 3D and Spear of Destiny 
Worms

# A question mark means the game is rumoured to be DRM-free, but confirmation is needed. 
# Asterisks mark games that are Steam exclusives, i.e. only available from Steam; buying them elsewhere only nets you a Steam key. 
# Note that games with any third party DRM are disqualified from this list, even if they do not actually use CEG (such as C&C4 or
# Batman:AA).