id Software's back catalogue of games will be made available through Valve's Steam digital distribution system after the QuakeCon conference tonight.
That's 24 titles from Commander Keen right up to Doom 3: Resurrection of Evil, and they'll all work on modern operating systems.
id's also offering an "id Superpack" containing all of them.
What's more, conference attendees get a free copy of Quake 1, and a USD 10 coupon to put toward them.
CEO Todd Hollenshead said Steam was "a credit to Valve" and "the future of distribution for games".
Games cost from USD 4.95 to USD 19.95, with packages in the USD 17.95 to USD 35.95 range. The "super pack", containing every id title available on Steam, is USD 62.95.
The full register looks like this:
- Commander Keen, Episodes 1 through 5
- Wolfenstein 3D
- Spear of Destiny
- Return to Castle Wolfenstein
- Ultimate DOOM
- DOOM II
- Master Levels for DOOM II
- Final DOOM
- DOOM3: Resurrection of Evil
- QUAKE Mission Pack 1: Scourge of Armagon
- QUAKE Mission Pack 2: Dissolution of Eternity
- QUAKE II
- QUAKE II Mission Pack: The Reckoning
- QUAKE II Mission Pack: Ground Zero
- QUAKE III Arena
- QUAKE III: Team Arena
- Heretic: Shadow of the Serpent Riders
- HeXen: Deathkings of the Dark Citadel
- HeXen II
- DOOM 3 Pack: Includes DOOM 3 and DOOM 3: Resurrection of Evil
- QUAKE III Pack: Includes QUAKE III Arena and QUAKE III: Team Arena
- Wolf Pack: Includes Wolf 3D, Spear of Destiny and Return to Castle Wolfenstein
- DOOM Pack Complete: Includes all DOOM games released by id
- QUAKE Pack: Includes all 8 QUAKE Titles available on Steam
- Heretic\HeXen Pack: Includes Heretic: Shadow of the Serpent Riders, HeXen, HeXen: Deathkings of the Dark Citadel, HeXen II
- id Super Pack: Every id game on Steam