Most environment textures of FreeDoom (if not all) are designed to be compatible on art style so you can play IWADs with no art clashing. I played Requiem, STR

Most environment textures of FreeDoom (if not all) are designed to be compatible on art style so you can play IWADs with no art clashing. I played Requiem, STRAIN and lots of classical PWADs (even Back To Saturn) and the megawads always looked great on every level.