ALPHAS
Doom 0.2
Doom 0.3 Pre-Alpha
Doom 0.4
Doom 0.5
Doom 0.5b

BETA
Doom Public Release Beta

PATCHES
Upgrade Registered Doom 1.1 to 1.9
Upgrade Registered Doom 1.2 to 1.9
Upgrade Registered Doom 1.666 to 1.9
Upgrade Registered Doom 1.9 to Ultimate Doom
Upgrade v1.666 Shareware to v1.9 Shareware
Upgrade v1.8 Shareware to v1.9 Shareware
Downgrades 1.9 to 1.1 for some reason
Doom 2 v1.666 German Version to 1.9
Doom 2 v1.8 to 1.9
Doom 2 v1.7a to 1.9
Doom 2 v1.666 (certain ones) and Doom 1.7 to Doom v1.7a (Not Supported, Pirated
Doom 2 v1.666 (certain ones) to Doom 2 v1.7a
Doom 2 v1.7 to 1.7a
Final Doom - Yellow Key fix in Map31
Heretic Registered 1.0 to 1.2
Heretic Shareware 1.0 to 1.2
Heretic 1.2 Registered to Heretic v1.3 "Shadow of the Serpent Riders" 5 ep Version
Hexen: Deathkings fix for Redbook Audio bug
Hexen Registered 1.0 to 1.1, CD Version Only!
Hexen Registered 1.0 to 1.1, Allows 8 Player Deathmatch
Hexen Registered 1.0 to 1.1, Floppy Version Only!
Strife Registered 1.2 to 1.3, Out of Box CD Only!
Strife Registered 1.0 to 1.3
Strife Registered 1.1 to 1.3 MS-DOS Patch
Strife Registered 1.2 to 1.3, only 1.0 CD patched already to 1.2
Strife Registered 1.1 to 1.2 Windows Patch
Strife 1.3 to 1.31 (DOS)

SHAREWARE VERSIONS
Doom v1.9 Shareware
Hacx Early Shareware, Requires Doom 2.
Hacx Full Version, Free Now!
Heretic Shareware 1.2
Hexen Shareware 1.1
Strife Demo 1.1