STRAIN is a 32-level partial conversion released in 1997 by the Alpha Dog Alliance. It features nine new or modified monsters through the use of DeHackEd, and a soundtrack written by David "Tolwyn" Shaw, Mark Klem, and Jon Landis.
A bugfix release provided at Doom Wad Station STRAIN Page.
This release has the bugs occurring in certain sourceports fixed by Zorcher @ Doom Connector. In the original release MAP07: En Route is impossible to complete in ports based on old versions (prior to 2.3.0) of ZDoom, as the level relies on the occurrence of a spechits overflow in order for the exit to work. Recent versions of ZDoom identify the map and automatically apply the required compatibility flag. There are also problems with the DeHackEd patch when it is used with Doom Legacy.
To play a "proper" game, use 'StrainFix.wad' (replacing the original 'Strain.wad' that is also bundled) with 'Strain_Jive.wad'. The original .DEH file is encoded within the 'Strain_Jive.wad'. StrainFix.zip compiled and submitted to the web by WinstonSmith6079, also available at Doomwadstation.net.
Credits: Alpha Dog Alliance - creators of STRAIN