This is a section with resources related to the shareware version
of DOOM. (For further information about the fully registered release of the
game, as well as information about the sequel, DOOM 2, see: DOOM (Registered).
Installation files (distributed as single file archives)
Shareware multi-archive distributions
have the file sizes mentioned in
may not be authentic. (Use at your own risk.)
doom1_1a.zip and doom1_1b.zip
Files related to older, pre-release versions of DOOM are
described and/or available at: these locations:
Patches for Shareware versions
Shareware to 1.9 Shareware Patch (zipped
locally as dms1819z.zip)
DOOM 1.Triple Six Shareware to 1.8 patch: The
most original patch file available is the DM18SPT.ZIP that is zipped locally on
this website at dm18spzo.zip (DOOM 1.8 Shareware
Patch, zipped, from an old collection). That was obtained from
http://toogam.bespin.org/doom/doompat.zip which contained this patch and other
DOOM patches. It is quite possible that this 1.8 patch came straight from id
Software's FTP site, although truth be told, that isn't 100% certain. The file
was byte for byte identical (even though the file time meta data differed) to
another copy of the patch which is in dm18spzu.zip from this website. That copy
came from a collection of files which had been suspected as affected by malware
(although subsequent review suggests most files in that collection were actually
(as found on gamers.org) has an added dm18spt.txt file.
It has been zipped locally as dm18spzg.zip.
are identical: The file from these locations has
an executable added (which is likely an advertisement for a shareware
distributor). The file has been zipped locally as dm18spzc.zip.
All of these various non-identical versions of the 1.8 patch distributions have
a PATCH.ZIP and all the PATCH.ZIP files are different. However, the extracted
contents of the three PATCH.ZIP files are byte of byte identical, other than the
version from dm18spzc.zip having an extra executable.
For patches related to the public beta versions 1.4
through 1.6, see the
page on the retail version of
DOOM: section on patches related to beta versions as that section has
details about the patches that involve using both the registered version of
DOOM 1.2 and also the public beta versions of DOOM.
Shareware to 1.Triple Six Shareware Patch
(zipped locally as dm1t6spz.zip)
1.1 Shareware to 1.2 Patch (mirror of the
file for the DOOM 1.1 Shareware to 1.2 Patch) have been zipped locally as
dm12sptz.zip. Another dm1_2spt.zip has also been zipped locally as
dm12spza.zip. This alternate version is a bit larger, but the files within
that dm1_2spt.zip file have been verified to be byte for byte identical with
the files from dm12sptz.zip's dm1_2spt.zip. (This alternate version may have
simply come from an old collection.)
Versions of DOS4GW Extender (meant for DOOM 1.1)
It is not clear how these files compare. Use at your own risk.
http://cd.textfiles.com/sprintos5/WADS/PATCHES/DOOM11PT.ZIP (seems to
be modified, at least by having a zip file comment added)
(This does ssem to be legitimate, as noted by
The origin of this file may not be quite trustworthy, as it does not seem to be
offered by a wide variety of sites. Use at your own risk.
http://cd.textfiles.com/sprintos5/WADS/PATCHES/DOOM10PT.ZIP (seems to
be modified (at least by having a zip file comment added).
This is different than Doom11Pt although the files do refer to
DOOM11PT in some fashion.
Patches directly to version 1.9