Oswald

I think reading up on the topic would help to realize how impossible is to make a doom clone. here's a step by step tutorial on how to do a wolfenstein like engine, it explains a bit of the floors aswell. http://www.permadi.com/tutorial/raycast/index.html the engine in Numen is a magnitude or two more complex than what the tut talks about and does already the impossible, I dont think it can get any further than that, and even that is very slow (for a game, impressive for the machine) ~5 fps. using char mode would end up looking like the spectrum doom. char aligned walls example from c64: http://noname.c64.org/csdb/release/?id=3248 it cheats as hard as it can, but manages to squeeze in colors in a high resolution. mood is not the best the c64 can come up with here you have a playable wolf clone at the end, being roughly 2x faster than mood: http://noname.c64.org/csdb/release/?id=11692 so given that the a8 is 2x faster in 4x4 modes, a smooth wolf game is more than doable.