I'm still trying to figure out why there is a total and absolute lack of PPC based DOOM ports on the Amiga such as:
GZDOOM
ZDOOM
DOOM Legacy
Eternity
etc
What the Amiga has is very very very very very limited, and only fun if you insist upon playing the game in low res, and don't have any intention to script or use models or hi-res textures and what not when you are map building.
Amiga and DOOM at this point have had a horrid relationship. :/