Tom Mustaine

Tom Mustaine is a game designer who has co-founded and, after Ritual was bought by, co-founded Escalation Studios. Escalation Studios was purchased by ZeniMax Media, parent company of Bethesda Softworks, in 2017 and was added to Bethesda, becoming Bethesda Game Studios Dallas, at which Mustaine is currently an executive.

His Doom-related work includes one of the Master Levels for Doom II, Paradox; the commercial add-on Perdition's Gate published by WizardWorks, and two DWANGO WADs: 4dwango.wad for Heretic, and 1dwango.wad for Doom II, a compilation of levels including five maps of his own and two music tracks he wrote. He also contributed some of the music tracks used in TNT: Evilution.

More recently, he worked on Doom Resurrection.