WadSmoosh

WadSmoosh is a single player action game. It was developed by JP LeBreton and was released on December 21, 2017. It received mostly positive reviews from players.

WadSmoosh merges your provided Ultimate Doom, Doom 2, Master Levels, No Rest for the Living, Final Doom, and Sigil data into a single IWAD file that can be played in GZDoom, with each game as its own entry in the episode list. This makes it very convenient to play all of classic Doom's official releases, and user created mods (WADs) for both Doom 1 and Doom 2, without relaunching the game with…