Id Software stated that these beta releases were unauthorized, possibly because these executables had partial support for Doom II, which was being developed at the time. There are three known variants of this version: first level and second level betas, and a shareware build marked as v1.25. Network play no longer locks up when using a sound card.Switches and platforms work when reloading from a saved game.Fix for the broadcast packet bug which caused many networks to suffer decreases in performance.The status bar is modified and now uses a single STBAR image as a backdrop.'I_StartupSound: forking sound daemon.' in 1.1 was changed to 'I_StartupSound: Hope you hear a pop.'.'CENTER the joystick and press button 1:' was added, changes to other joystick messages were also made.The -left and -right network options no longer work.Gamma correction mode was expanded to include five settings (0–4).Mouse and joystick can be used in the menus.First appearance of 'Nightmare!' skill level.This release saw the network code split into external ' drivers', providing a modular network system. The command line parameters -send and -receive were added.Many more, including capitalization, spelling corrections and additional error messages.The 'This version is NOT SHAREWARE, do not distribute!' text was added, to be shown with the registered version.At the text screen of Knee-Deep in the Dead 'buy' is changed to 'play' in the final sentence.A more stable version of the DOS extender (DOS/4GW).First appearance of gamma correction, which is either on or off.It is possible to play the 1.1 registered IWAD with this version, one must rename this wad to 'doom1.wad', it also mentions that this is the 'commercial version' in the startup screen, rather than registered.

The BFG9000 fires many plasma gun shots in a wide field in front of the player.The plasma gun fires red as well as green shots.Functionally is fairly close to the commercial release.

Doom 1 full version wad