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.
Deathmatch maps for STRAIN by its creators, Alpha Dog Alliance.
STRAIN DeathMatch levels are specifically designed by Alpha Dog Alliance to use their STRAIN add-on for DOOM II. These levels take special advantage of the tunes, textures, weapons, and even baddies of STRAIN.