Doug Ryerson

Doug Ryerson is a Canadian Doom level designer who created a fair number of standalone levels in the mid 90's.

1994

 * Suppression of Resistance
 * White Room
 * Crescent
 * Pure Evil
 * Six Areas

1995

 * Antares
 * Chlorine
 * Heavy fight
 * DNA Technology Laboratory
 * Heroes
 * E2M6

1996

 * Galilean Moons
 * BLAHBLAH
 * Triad Experimental Corporation