STRAIN

STRAIN is a 32-level partial conversion released in 1997 by the Alpha Dog Alliance. It features nine new or modified monsters, and a soundtrack written by David "Tolwyn" Shaw, Mark Klem, and Jon Landis.

Levels
First "episode": Second "episode": Third "episode": Final "episode": Secret levels:
 * MAP01: Barracks by Bill McClendon
 * MAP02: Outskirts by Bjorn Hermans
 * MAP03: Downtown by Florian Helmberger
 * MAP04: Industrial Zone by Adam Windsor
 * MAP05: Depot by Jon Landis
 * MAP06: Launch Control by Jon Landis
 * MAP07: En Route by Adelusion
 * MAP08: Hangar by Rich Johnston
 * MAP09: Cargo Bay by Adelusion
 * MAP10: Entryway by Charlie Patterson
 * MAP11: Command Control by Bill McClendon
 * MAP12: Power Station by Bill McClendon
 * MAP13: Ruins by David Rotramel
 * MAP14: Engineerng by David Graves, Adelusion, Rich Johnston, and Arthur Chang
 * MAP15: Subsidiary Power by Chainsaw
 * MAP16: Living Quarters by Charlie Patterson and Eric Roberts
 * MAP17: Promenade by Holger Nathrath and Arthur Chang
 * MAP18: Relay Station by David Rotramel
 * MAP19: Waste Processing by Darrell Esau
 * MAP20: Reactor by David Davidson
 * MAP21: Maintenance by Adelusion and Arthur Chang
 * MAP22: Specimen Storage by Adelusion
 * MAP23: Dispensary Alpha by Adelusion
 * MAP24: Sub-Laboratory by Adelusion
 * MAP25: Main Laboratory by Arthur Chang
 * MAP26: Main Laboratory II by Holger Nathrath, Charlie Patterson, and Eric Roberts
 * MAP27: Dispensary Beta by Andy Badorek
 * MAP28: Unknown by Bjorn Hermans
 * MAP29: Self-Destruct by Ron Allen
 * MAP30: Boss by Jon Landis and Rich Johnston
 * MAP31: Secret by Jon Landis
 * MAP32: Super-Secret by Holger Nathrath and Adelusion