Versions of Doom and Doom II

The following is a list of the changes between different versions of Doom. A complete list of changes is unavailable, as changelogs were not included in later releases.

v1.0
Version 1.0 shareware was released December 10th, 1993.

This is the initial release of Doom. Internally, the game lists this as version "0.99".

v1.1
Version 1.1 was released December 16th, 1993.


 * The first registered release of Doom.
 * First appearance of gamma correction.
 * A more stable version of the DOS extender (DOS/4GW)
 * Soundblaster 1.0 support

v1.2
Version 1.2 was released February 17th, 1994.


 * Rewritten sound code
 * Modem/null-modem support. This release saw the network code split into external "drivers", providing a modular network system.
 * PAS-16 stereo support
 * First appearance of Nightmare skill mode.
 * Mouse and joystick can be used in the menus
 * Gamma correction mode was expanded to include five settings.
 * Improved joystick calibration
 * Multiplayer text macros
 * Multiplayer "-left" and "-right" options no longer work.

Bug fixes:


 * Fix for the broadcast packet bug which caused many networks to suffer decreases in performance.
 * Runs under Windows
 * Z_Malloc error
 * IRQ 2 works
 * Savegame slots 5 and 6 work
 * Switches and platforms work when reloading from a saved game.
 * Network play no longer locks up when using a sound card.

v1.4
Version 1.4 was released 28th June 1994.


 * Support for 14.4 and 28.8k modems
 * Improved null-modem/modem support.
 * Improved version of setup:
 * Phone number list
 * Database of modem control strings
 * Addition of a level warp key (F1)
 * Allows up to 8 sound channels to be selected.


 * Addition of Deathmatch 2.0 (altdeath mode)
 * First inclusion of the Doom FAQ.
 * Multiplayer demos can be recorded.
 * Recorded demos no longer end when the player dies or at the end of a level. The 'Q' key must be pressed to end a demo.
 * Addition of the 'maxdemo' command line argument.
 * Addition of multiplayer "spy" mode (F12 key).
 * PWAD files can no longer be used with the shareware version.
 * Maps can be reloaded using the IDCLEV cheat code when map editing on a LAN (????)
 * Response file support.
 * AWE32 support.

Bug fixes:


 * Projectiles no longer trigger linedefs.
 * More than two people can play over a network without crashes
 * Sound problem fixes
 * Fix for a bug with the PS/2 mouse
 * Savegame bug fix, where player saves a game under a door, restores it and presses the use key.
 * Difficulty can be selected when starting a null-modem/modem game.
 * '+' and '-' can be typed in multiplayer chat mode
 * Map bug fixes

v1.5
Version 1.5 was released July 8th, 1994.


 * Rewrite of the null-modem/modem support (SERSETUP).
 * Improved GUS instrument mapping file.
 * Increased savegame buffer size.

Bug fixes:


 * Help screen mentions the gamma correction function.
 * Bug with response file fixed.
 * Bug when using a baud rate greater than 38,400 bps in null-modem/modem games fixed.
 * Deathmatch bug fixed where items reappeared but could not be picked up.

v1.6
Version 1.6 was released 3rd August, 1994.

v1.666
Version 1.666 was released 1st September, 1994. ("666" is a reference to the Number of the Beast.)


 * Addition of the "-timer" command line option.
 * Doom FAQ updated to version 5.8

v1.7a
Differences from 1.7:
 * From Doom2p17.txt dated Tuesday, November 08, 1994 (Archived inside of doom2p17.zip, official patch to upgrade from Doom2 1.7 to 1.7a).


 * Various level design bugs. (HOM, see thru walls, etc.).
 * Sound code changes.

v1.8

 * Doom FAQ updated to version 6.666

v1.9

 * Main article: Doom 1.9

DOS version 1.9 was released 1st February 1995.

Ultimate Doom was released 25th May 1995, and included a modified version of Doom 1.9.

Final Doom was released 11th December 1996, and included a modified version of the Ultimate Doom engine.