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What is a CD key and where can I find it?

The CD Key is a serial number with a combination of 13, 15, 18, or 25 letters and numbers - it can be found on a sticker inside your game's case or printed on the game's quick reference card.  For authorized online resellers, where no physical media is shipped, the CD Key is usually included in an emailed purchase receipt.  For questions on who is an authorized reseller, please contact the publisher for a list of their authorized resellers.

The CD Key acts as your proof of purchase for the game - Steam Support may ask for it if you need to establish your ownership of an account. It is recommended that you keep your CD Key in a safe place to ensure the security of your account.

 

 

Which retail / digital CD Keys are accepted on Steam?

All retail Valve games and a number of third-party games can be registered to your Steam account. All of the following games can be registered through Steam:

  • Valve CD Keys in this format: ####-#####-####
  • Valve CD Keys in this format: 1AB2C-D3FGH-456I7-JK8LM-NOP9Q
  • Valve CD Keys in this format: 1AB2C-D3FGH-456I7
  • Age of Empires III: Complete Collection CD Keys in this format: 1ABCD-D3FGH-45I67
  • AI War CD Keys in various formats
  • AirBuccaneers CD Keys in this format: 1ABCD-D3FGH-45I67
  • Aliens vs. Predator (2010 Release) CD Keys in this format: 1AB2C-D3FGH-456I7-JK8LM-NOP9Q
  • Alpha Prime CD Keys in this format: 1AB2C-D3FGH-456I7-JK8LM-NOP9Q
  • Alter Ego CD Keys in this format: 1AB2C-D3FGH-456I7
  • The Amazing Spider-Man CD Keys in this format: ABCD1-E2FGH-3I4J5
  • Anomaly: Warzone Earth in this format: 12345 - ABCDE - 6789F
  • Arma 2: Combined Operations CD Keys in this format:  1AB2C-D3FGH-456I7
    • Note: Only digital copies of this game may be registered with Steam
  • Arma 3 Alpha (Supporter Edition) in this format: 12345-ABCDE-6789F
  • Audiosurf CD Keys in this format: 1AB2C-D3FGH-456I7-JK8LM-NOP9Q
  • Batman: Arkham City CD Keys in this format: 1AB2C-D3FGH-456I7
  • Batman: Arkham Origins CD Keys in this format: 1AB2C-D3FGH-456I7
  • The Binding Of Isaac CD Keys in this format: 1AB2C-D3FGH-456I7
  • Bioshock CD Keys in this format: 1AB2C-D3FGH-456I7
  • Bioshock 2 CD Keys in this format: 1AB2C-D3FGH-456I7
  • Bioshock Infinite CD Keys in this format: 1A2BC-DEF34-G5HIJ
  • Borderlands CD Keys in this format: 1AB2C-D3FGH-456I7
  • Borderlands 2 CD Keys in this format:  1AB2C-D3FGH-456I7-JK8LM-NOP9Q
    • Note: The letter O and letter Q may look very similar.
  • Botanicula CD keys in this format: ABCDE-FGHIJ-KL123
  • BRINK CD Keys in this format:  1AB2C-D3FGH-456I7-JK8LM-NOP9Q
  • Call of Duty: Modern Warfare 2 CD Keys in this format: 1AB2C-D3FGH-456I7-JK8LM-NOP9Q
  • Call of Duty: Modern Warfare 3 CD Keys in this format: 1AB2C-D3FGH-456I7
  • Call of Duty: Black Ops CD Keys in this format: 1AB2C-D3FGH-456I7-JK8LM-NOP9Q
  • Call of Duty: Black Ops 2 CD Keys in this format: 1AB2C-D3FGH-456I7
  • Call of Duty: Ghosts CD Keys in this format: 1AB2C-D3FGH-456I7
  • Call of Duty 4: Modern Warfare is not accepted on Steam
  • Chivalry Medieval Warfare CD Keys in this format: 1AB2C-D3FGH-456I7
  • Cities in Motion CD Keys in this format: 1AB2C-D3FGH-456I7-JK8LM-NOP9Q
  • Civilization IV: Complete Edition CD Keys in this format: 1AB2C-D3FGH-456I7
  • Civilization V CD Keys in this format: 1AB2C-D3FGH-456I7-JK8LM-NOP9Q
  • Civilization V - Gods and Kings CD Keys in this format: 1AB2C-D3FGH-456I7
  • Commander: Conquest of the Americas CD Keys in this format: 1AB2C-D3FGH-456I7-JK8LM-NOP9Q
  • Company of Heroes: Opposing Fronts CD Keys in this format: 1AB2-CD3F-GH45-6I7J-K8LM
  • Cricket Revolution CD Keys in this format: 1AB2C-D3FGH-456I7-JK8LM-NOP9Q
  • Crusader Kings II CD Keys in this format: 1AB2C-D3FGH-456I7
  • The Cursed Crusade CD Keys in this format: 1AB2C-D3FGH-456I7
  • The Darkness II CD Keys in this format: 1AB2C-D3FGH-456I7
  • Dark Messiah CD Keys in this format: 1AB2C-D3FGH-456I7-JK8LM-NOP9Q
  • Dark Messiah Multiplayer CD Keys in this format: 1AB2C-D3FGH-456I7-JK8LM-NOP9Q
  • Dark Messiah CD Keys may also have been printed incorrectly, please see the Dark Messiah article
  • Darksiders CD Keys in this format: 1AB2C-D3FGH-456I7-JK8LM-NOP9Q
    • Note: The number 2 and letter Z may look very similar.
  • Dark Souls keys in this format:  1AB2C-D3FGH-456I7-JK8LM-NOP9Q
  • Dawn of War II CD Keys in this format: 1AB2C-D3FGH-456I7-JK8LM-NOP9Q
  • Dawn of War II - Retribution CD Keys in this format: 1AB2C-D3FGH-456I7
  • Dead Island - CD Keys in this format: ABCD1-2345E-FGHI6
  • Defense Grid CD Keys in this format (Direct2Drive only): 1AB2C-D3FGH-456I7-JK8LM-NOP9Q
  • Deus Ex: Human Revolution Keys in this format: 1AB2C-D3FGH-456I7
  • Disciples: Reincarnation CD keys in this format: ZZ-1AB2C-D3FGH-456I7-JK8LM-NOP9Q
  • DmC Devil May Cry CD keys in this format: 1AB2C-D3FGH-456I7
  • Duke Nukem Forever CD Keys in this format: 1AB2C-D3FGH-456I7-JK8LM-NOP9Q
  • Dungeons and Dragons: Daggerdale in this format: 1AB2C-D3FGH-456I7
  • Dungeon Siege III in this format: 1ABCD-D3FGH-45I67
  • Elder Scrolls: Skyrim in this format: 1ABCD-D3FGH-45I67
  • Empire: Total War CD Keys in this format: 1AB2C-DEFGH-IJK4L-MNOPQ-RST56
  • F1 2012 Retail CD Keys in this Format: 1ABCD-D3FGH-45I67
  • F.E.A.R. 2: Project Origin CD Keys in this format: 1AB2C-D3FGH-456I7-JK8LM-NOP9Q
  • F.E.A.R. 3 CD Keys in this format: 1AB2C-D3FGH-456I7
  • Fallout: New Vegas CD Keys in this format: 1AB2C-D3FGH-456I7-JK8LM-NOP9Q
  • Football Manager 2009 CD Keys in this format: 1AB2CD3FGH456I7JK8LMNOP9Q
  • Football Manager 2010 CD Keys in this format: 1AB2CD3FGH456I7JK8LMNOP9Q
  • Football Manager 2011 CD Keys in this format: 1AB2C-D3FGH-456I7-JK8LM-NOP9Q
  • Football Manager 2012 CD Keys in this format: 1AB2C-D3FGH-456I7
  • Football Manager 2013 CD Keys in this format: 1AB2C-D3FGH-456I7
  • Football Manager 2014 CD Keys in this format: 1AB2C-D3FGH-456I7
  • Front Mission Evolved CD Keys in this format: 1AB2C-D3FGH-456I7-JK8LM-NOP9Q
  • Global Agenda CD Keys in this format: 1AB2C-D3FGH-456I7-JK8LM-NOP9Q
    • Note: Keys purchased directly from the Global Agenda website cannot be registered on Steam.
  • Grand Theft Auto IV CD Keys in this format: 1ABCD-D3FGH-45I67
  • GTI Racing CD Keys in this format: 1AB2C-D3FGH-456I7-JK8LM-NOP9Q
  • GT Legends CD Keys in this format: 1AB2C-D3FGH-456I7-JK8LM-NOP9Q
  • GTR Evolution CD Keys in this format: 1AB2C-D3FGH-456I7-JK8LM-NOP9Q
  • Hitman Absolution CD Keys in this format: 1AB2C-D3FGH-456I7
  • Homefront CD Keys in this format: 1AB2C-D3FGH-456I7
  • Humble Indie Bundle in this format: 1AB2C-D3FGH-456I7-JK8LM-NOP9Q
  • Humble Indie Bundle 2 in this format: 1AB2C-D3FGH-456I7-JK8LM-NOP9Q
  • Humble Indie Bundle 3 in this format: 1AB2C-D3FGH-456I7
  • IL-2 Sturmovik: Cliffs of Dover in this format: 1AB2C-D3FGH-456I7-JK8LM-NOP9Q
  • Just Cause 2 CD Keys in this format: 1AB2C-D3FGH-456I7-JK8LM-NOP9Q
    • Note: Please input all O's and 0's as Q's for Just Cause 2
  • Kane & Lynch 2: Dog Days CD Keys in this format: 1AB2C-D3FGH-456I7-JK8LM-NOP9Q
  • Killing Floor CD Keys in this format: 1AB2C-D3FGH-456I7-JK8LM-NOP9Q
  • King Arthur - The Role-playing Wargame CD Keys in this format: 1AB2C-D3FGH-456I7-JK8LM-NOP9Q
  • Lara Croft Guardian of Light CD Keys in this format: 1AB2C-D3FGH-456I7-JK8LM-NOP9Q
  • The Last Remnant CD Keys in this format: 1AB2C-D3FGH-456I7-JK8LM-NOP9Q
  • Lionheart: Kings' Crusade CD Keys in this format: 1AB2C-D3FGH-456I7-JK8LM-NOP9Q
  • Lord of the Rings: War in the North in this format: 1AB2C-D3FGH-456I7
  • Lost Planet: Extreme Condition CD Keys in this format: 1AB2C-D3FGH-456I7-JK8LM-NOP9Q
  • Lost Planet: Colonies Edition CD Keys are not accepted on Steam
  • Mafia 2 CD Keys in this format: 1AB2C-D3FGH-456I7-JK8LM-NOP9Q
  • Magicka CD Keys in this format: 1AB2C-D3FGH-456I7-JK8LM-NOP9Q
  • Men of War: Assault Squad CD Keys in this format: 1ABC-D3FG-4567-JK8L
  • Metro 2033 CD Keys in this format: 1AB2C-D3FGH-456I7-JK8LM-NOP9Q
  • Metro Last Light CD Keys in this format: 1AB2C-D3FGH-456I7
  • MLB Front Office Manager CD Keys in this format: 1AB2C-D3FGH-456I7-JK8LM-NOP9Q
  • Mount & Blade CD Keys in this format: 1AB2C-D3FGH-456I7-JK8LM-NOP9Q
  • Mount & Blade: Warband CD Keys in this format: 1AB2C-D3FGH-456I7-JK8LM-NOP9Q
  • Mount & Blade: With Fire and Sword CD Keys in this format: 1AB2C-D3FGH-456I7
  • NBA 2K9 CD Keys in this format: 1AB2C-D3FGH-456I7-JK8LM-NOP9Q
  • Napoleon: Total War CD Keys in this format: 1AB2C-D3FGH-456I7-JK8LM-NOP9Q
  • Oil Rush CD Keys in this format: 1A2B-3C4D-5E6F-7G8H
  • Order of War CD Keys in this format: 1AB2C-D3FGH-456I7-JK8LM-NOP9Q
  • Pirates of Black Cove in this format: 1AB2C-D3FGH-456I7
  • Postal 3 CD Keys in this format: AB-1CDEFG-HIJ2KL-M3N4OP-5QRS6T
    • Note: The number 6 and letter G may look very similar.
  • Prey CD Keys in this format: AAB1BB2C345CDD6E E7
  • Prototype 2 CD Keys in this format: 1AB2C-D3FGH-456I7
  • Quantum Conundrum CD Keys in this format: 1AB2C-D3FGH-456I7
  • R.U.S.E. CD Keys in this format: 1AB2C-D3FGH-456I7-JK8LM-NOP9Q
    • Note: R.U.S.E. keys from Ubisoft's Digital River service are not accepted on Steam 
  • RACE - the WTCC Game CD Keys in this format: 1AB2C-D3FGH-456I7-JK8LM-NOP9Q
  • RACE 07 CD Keys in this format: 1AB2C-D3FGH-456I7-JK8LM-NOP9Q
  • Ragdoll Kung Fu CD Keys in this format: 1AB2C-D3FGH-456I7-JK8LM-NOP9Q
  • RAGE CD Keys in this format: 1AB2C-D3FGH-456I7
  • Railworks CD Keys in this format: 1AB2C-D3FGH-456I7-JK8LM-NOP9Q
  • Red Faction: Armageddon CD Keys in this format: 1AB2C-D3FGH-456I7
  • Red Orchestra CD Keys in this format: 1AB2C-D3FGH-456I7-JK8LM-NOP9Q
  • Red Orchestra 2 CD Keys in this format: ABCD1-E2FG3-4H5IJ
  • Rocksmith CD Keys in this format: 1AB2C-D3FGH-456I7
  • Rocksmith 2014 CD Keys in this format: 1AB2C-D3FGH-456I7
  • Rogue Warrior CD Keys in this format: 1AB2C-D3FGH-456I7-JK8LM-NOP9Q
  • Risen 2: Dark Waters  CD Keys in this format: 1AB2C-D3FGH-456I7
  • SiN Episodes: Emergence CD Keys in this format: 1AB2C-D3FGH-456I7-JK8LM-NOP9Q
  • Saint's Row 2 CD Keys in this format: 1AB2C-D3FGH-456I7-JK8LM-NOP9Q
  • Saint's Row 3 CD Keys in this format: 1AB2C-D3FGH-456I7
  • Saint's Row 4 CD Keys in this format: 1AB2C-D3FGH-456I7
  • Serious Sam 3 CD Keys in this format: 1ABC2-3DEF4-5GHI6
  • Serious Sam HD CD Keys in this format: 1AB2C-D3FGH-456I7-JK8LM-NOP9Q
  • Shattered Horizon CD Keys in this format: 1AB2C-D3FGH-456I7-JK8LM-NOP9Q
  • The Ship CD Keys in this format: 1AB2C-D3FGH-456I7-JK8LM-NOP9Q
  • Ship Simulator Extremes CD Keys in this format: 1AB2C-D3FGH-456I7-JK8LM-NOP9Q
  • Silent Hill Homecoming CD Keys in this format: 1AB2C-D3FGH-456I7-JK8LM-NOP9Q
  • Sniper: Elite V2 CD keys in this format: 12345-ABCDE-6789F
  • Sniper: Ghost Warrior CD Keys in this format: 1AB2C-D3FGH-456I7-JK8LM-NOP9Q
  • Space Trader CD Keys in this format: 1AB2C-D3FGH-456I7-JK8LM-NOP9Q
  • Spec Ops: The Line CD Keys in this format: 12A34-5BCDE-FGH6I
  • Speedball 2 - Tournament in this format: 1AB2C-D3FGH-456I7-JK8LM-NOP9Q
  • Star Trek: D-A-C CD Keys in this format: 1AB2C-D3FGH-456I7-JK8LM-NOP9Q
  • STCC - The Game CD Keys in this format: 1AB2C-D3FGH-456I7-JK8LM-NOP9Q
  • Stronghold 3 CD Keys in this format: 1AB2C-D3FGH-456I7
  • Super Meat Boy CD Keys in this format:  1AB2C-D3FGH-456I7-JK8LM-NOP9Q
  • Supreme Commander CD Keys in this format: 1AB2-CD3F-GH45-6I7J-K8LM
  • Supreme Commander 2 CD Keys in this format: 1AB2C-D3FGH-456I7-JK8LM-NOP9Q
  • Sword of the Stars II CD keys in this format: 12345-ABCDE-6789F
  • Terraria CD keys in this format: 1AB2C-D3FGH-456I7
  • Tomb Raider (2013) CD keys in this format: 1AB2C-D3FGH-456I7
  • Torchlight CD Keys in this format: 1ABC-D3FG-4567-JK8L
    • Note: Only keys purchased directly from Runic Games or Perfect World prior to May 19th, 2010 can be registered on Steam. 
  • Torchlight II CD Keys in this format: 1AB2C-D3FGH-456I7
  • Total War: SHOGUN 2 CD Keys in this format: 1AB2C-D3FGH-456I7-JK8LM-NOP9Q
  • Total War: Rome II CD Keys in this format: 1AB2C-D3FGH-456I7
  • Trine 2 CD Keys in this format: 1AB2C-D3FGH-456I7
  • Unreal Tournament 3 CD Keys in this format: 1AB2-3FGH-456I-K8LM
  • Velvet Assassin CD Keys in this format: 1AB2C-D3FGH-456I7-JK8LM-NOP9Q 
  • Wargame: European Escalation CD Keys in this format: 1A-1AB2C-D3FGH-456I7-JK8LM-NOP9Q
  • Warlock Master of the Arcane CD Keys in this format: 1AB2C-D3FGH-456I7
  • Worldwide Soccer Manager 2009 CD Keys in this format: 1AB2C-D3FGH-456I7-JK8LM-NOP9Q
  • X3: Albion Prelude CD Keys in this format: ABCD-1EFG-HIJK-2LMN
  • X3: Terran Conflict CD Keys in this format: 1ABC-D3FG-4567-JK8L
  • X-SuperBox Keys in this format: 1ABC-D3FG-4567-JK8L
  • Zeno Clash CD Keys in this format: 1AB2C-D3FGH-456I7-JK8LM-NOP9Q

Opposing Force CD-keys cannot be registered through Steam. Opposing Force was included in a retail Half-Life package. The Half-Life CD-key included in the package will unlock all of the games in that package, including Opposing Force.

Note: Only the retail games listed above can be registered through Steam. No other retail games can be registered and downloaded using Steam.

 

Adding Non-Steam Games to Your Games List

Games which cannot be registered through Steam may still be added to your game list for easy access - please see the Adding non-Steam games to My games list topic for more information on this process.

 

 

 

 

 

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