Fredrik Johansson is a Doomer who is most notably famous for his levels (including the Vrack series). He also initiated the Doom Wiki project and has made a number of important contributions to the Freedoom project. He appears in the upper left corner of Post Hell on Doomworld, and also was once a moderator of the Doom 3 forums on Doomworld.
- Vrack 2 (v1.0) (Doomworld/idgames)
- Vrack 2 (v1.1) (Doomworld/idgames)
- Castle of Eternal Carrot in the Sky (Doomworld/idgames)
- Vrack 3 (Doomworld/idgames)