Jim Dethlefsen (Derf)

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Jim Dethlefsen (alias Derf) is a Doom level designer who was a member of TeamTNT and The Wad Crew, and contributed to their projects.

Body of work

1995

• The TWC Wad Collection December 95 (Doomworld/idgames)
  • Stalingrad (DF-SGRAD.ZIP)

1996

• The TWC Wad Compendium January 96 (Doomworld/idgames)
  • MAP09: Kharkov
• The TWC Wad Compendium March/April 96 (Doomworld/idgames)
  • MAP04: Leningrad
• TNT: Evilution
  • MAP05: Hanger
• Bloodlands (Doomworld/idgames)
  • MAP07: Bolofest
  • MAP10: Concertina
  • MAP20: Epoxy
  • MAP27: P'gon Load
  • MAP30: Elements
• Grievance (Doomworld/idgames)
  • MAP06: Cray-II
  • MAP08: Maven
  • MAP27: Cray-I
• Icarus: Alien Vanguard (Doomworld/idgames)
  • MAP26: Weapons Bay

1997

• The TWC Wad Compendium November/December 96 (Doomworld/idgames)
  • MAP09: Death Fiesta