Kristian Aro (aka Nebula) from Helsinki, Finland, has been designing WADs ever since 1996. In the Doom community, he is best known for the Brotherhood of Ruin episode and Death Tormention 3. In 2009 he released the Cacoward-winning Whispers of Satan with Paul Corfiatis. Kristian is also a musician and DJ and writes psychedelic trance music.
- 2002: A Doom Odyssey (Doomworld/idgames)
- Death Tormention 3 (Doomworld/idgames)
- Whispers of Satan (Doomworld/idgames)