2009 · Shooter · PC (Microsoft Windows)
Mapgame is a nine-level Ultimate Doom mapset created by Fletcher`, and released on May 16, 2009. It is an episode 1 replacement for Boom-compatible ports, and includes several changes such as new textures and props, a new palette file, and a new enemy, the sentry unit, replacing the spider mastermind. Lastly, the chaingun is replaced by a flare gun.