Description File for Doom II Upgrade to v1.8 Last Change: 03/July/96 (distributed by Ian Mapleson) The file dm2_18pt.zip is is a patch to upgrade PC Doom II from v1.666 to v1.8. This patch is useful for those who wish to play Doom II on SGI systems. The latest version of SGI Doom is v1.8, ie. the v1.666 WAD file is incompatible. Hence, to play Registered Doom II on an SGI: 1. Get the latest v1.8 SGI Shareware Doom from the idstuff/SGI directory of a Doom ftp site. 2. Buy and install registered PC Doom II on a PC. 3. Upgrade PC Doom II to v1.8 using the v1.8 patch (actually, v1.9 will probably work as well, but I think it wiser to get the version numbers as similar as possible). 4. Move the upgraded PC Doom II WAD file into the SGI Doom directory. 5. Remove the old SGI Shareware Doom WAD file. Any Doom II add-on level that doesn't use PC executables such as DeHacked will work with SGI Doom II (ie. ordinary PWAD add-on level files will work fine just as for PC Doom II. It's only add-on patches that expect to modify the Doom II EXE file which won't work). The above version upgrade process also applies to original Doom (get the file dm18rpt.zip instead for this). For more details on SGI Doom II compatability problems, see: http://doomgate.gamers.org/dhs/helpdocs/sgidoom.html Hope this helps! :) Ian. The Doom Help Service (DHS): http://doomgate.gamers.org/dhs/ SGI Network Admin, University of Central Lancashire, Preston, England, PR1 2HE. Doom: mapleson@gamers.org | Tel: (+44) 01772 893297, Fax: (+44) 01772 892913 Misc: mapleson@cee.hw.ac.uk | Office machine: SGI Indy R4400-200Mhz, 1MB cache 64MB RAM, 2GB SCSI disk, 24bit 17" 1280x1024, CDROM+DAT, IndyCam Digital Camera.