Halo: Combat Evolved, Halo 2, and Halo 3 are all set for a release on Steam, if leaked database files are to be believed.

A NeoGAF forum user discovered links to the three Halo titles–and several other unannounced games–in Steam’s database files. Usually these leaks prove to be correct, but sometimes the games don’t appear for months or even years after discovery. A link to the Halo 3 entry can be found here. The list of discovered games can be found below:

• La-Mulana
• The Splatters
• Octodad: Dadliest Catch Beta
• Duke Nukem 3D: Atomic Edition (Duke Nukem 3D+)
• Super House of Dead Ninjas
• Fez
• Fast and Furious 6
• Lococycle
• Yogventures!
• Dyad
• Cut the Rope
• Shadow Warrior Complete
• Retro/Grade
• Resident Evil: Revelations
• Quantum Conundrum 2
• Halo 3
• Halo 2
• Halo: Combat Evolved
• The Witness
• Angry Birds Space
• Angry Birds Seasons
• Second Life

What do you think about Halo making the jump to Steam? Let us know in the comments below.