This is a tutorial on using RGM, by Smallcomb. I posted a slightly (not much :P ) altered version here so people know where it is :D
raycasting game maker - general tutorial
The Raycasting Game Maker is a free easy to use game editor that creates simple raycasting games in the style of Wolf3D. The finished game needs only two files to run, an executable and a pak file with the game data. The game runs in Windowed- or Fullscreen Mode and supports 16 and 32 bit color.
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