Sverre André Kvernmo (Cranium)

Sverre André Kvernmo (alias Cranium or Soundblock) is a Norwegian level designer who started his career by creating Doom levels. In 1998, Doomworld nominated him one of the Top Ten Doom Level Makers‎ and conducted an interview with him. Outside of Doom, he has worked for, , and others, notably on , , and.

Inspiration
In the text files that accompany his levels, he lists the following maps as his personal "Hall of Fame": Nuke Mine, Castle of the Renegades, Eternity, Dante's Gate, Aliens TC's secret level, and Cleimos.

1995

 * Master Levels for Doom II
 * Black Tower (BLACKTWR.WAD)
 * Bloodsea Keep (BLOODSEA.WAD)
 * Mephisto's Maosoleum (MEPHISTO.WAD)
 * The Express Elevator to Hell (TEETH.WAD)
 * Bad Dream (TEETH.WAD, secret level)
 * Cabal series:
 * Cabal 1: Bloodflood
 * Cabal 2: Derelict Station
 * Cabal 3: The Watchtower
 * Cabal 4: Temple of Death
 * Cabal 5: We who are About to Die
 * Cabal 6: Eye of the Storm
 * Cabal 7: The Image of Evil

1996

 * Eternal Doom
 * MAP04: Nucleus
 * MAP05: Time Gate
 * MAP12: Darkdome

2013

 * Plasmaplant

2016

 * Echelon