The Updated Steam Free Games List

All install links will only work if you already have Steam installed on your PC.
Your internet browser can ask for confirmation [Chrome][Firefox][IE] to run these links.

Wanna a really great game? Look here! 

For ATI/AMD (Radeon) graphic card users: install - storefront
- Half-Life 2: Deathmatch [5]
- Half-Life 2: Lost Coast

For Nvidia (GeForce) graphic card users: install - storefront
- Half-Life 2: Deathmatch [5]
- Half-Life 2: Lost Coast
- Portal: First Slice (demo install - storefront)

For all Steam users:
Alien Swarm: install - storefront
America's Army 3: install - storefront
BattleForge [1][4][6]: install
Between [1][4]: install - storefront
Champions Online: Free for All [6]: install - storefront New
Codename Gordon: install
COIL [1]: install - storefront
Global Agenda: Free Agent [6]: install - storefront New
Mightier [1]: install - storefront
Moonbase Alpha: install - storefront
Peggle Extreme: install - storefront
Sam & Max Episode 104: Abe Lincoln Must Die!: install
Spacewar: install
Spiral Knights [6][7]: install - storefront New
The Cat and the Coup: install - storefront New
TrackMania Nations Forever [2]: install - storefront

For regional Steam users: (aggressive IP Block)
Alliance of Valiant Arms [6][R1]: install - storefront New
Forsaken World [6][R2]: install - storefront New

Free addons and resources for already purchased games:
Half-Life (high definition models): install - uninstall - comparison - screenshot
RACE 07 (Crowne Plaza Raceway track): install - storefront

Steam delivered MODs:
Age of Chivalry (requires Source SDK): install - storefront
D.I.P.R.I.P. Warm Up (requires Source SDK): install - storefront
Darkest Hour (requires Red Orchestra): install - storefront
Defence Alliance 2 (requires Killing Floor): install - storefront
Dystopia (requires Source SDK): install - storefront
Empires Mod (requires Source SDK): install - storefront
Eternal Silence (requires Source SDK): install - storefront
INSURGENCY (requires Source SDK): install - storefront
Mare Nostrum (requires Red Orchestra): install - storefront
Pirates, Vikings, and Knights II (requires Source SDK): install - storefront
Smashball (requires Source SDK): install - storefront
Synergy (requires Half-Life 2): install - storefront
Zombie Panic! Source (requires Source SDK): install - storefront

Related stuffs:
BioShock: Breaking the Mold [Art]: download - storefront
Company of Heroes: All Heroes Rise OST [OST]: download - storefront
Company of Heroes: Songs From the Front OST [OST]: download - storefront
Garshasp: The Monster Slayer Art Book [Art]: download - storefront
GREED: Black Border OST [OST]: download - storefront
Warhammer 40,000: Dawn of War II OST [OST]: download - storefront
Zombie Movie [Mac/Win][Mov]: install - storefront