Ok thx, now I start understanding how ScummVM works. C64 and NES ROMs don't need reverse engineering because most of them are written in assembler. @Bobbin: And C64 images ARE called ROMs(i'm having this nice computer and I read much on C64 forums), there are also real ROMs because the C64 has an ex...

I just don't understand how SCUMMVM works. I thought it was an emulator first... till I saw that it supports C64 roms.

And a game engine for roms?

How can I convert games for ScummVM that are not listed in the page of needed files in the wiki?