The sprite work and level design were impressive ... an odd weapon of demonic origin that the player can upgrade by finding keys. DOOM 64 is by no means a masterpiece, but it was a fun alternative ...

Even other Commodore 64 mods, like the Raspberry Pi C64 expansion cartridge playing Doom, may be more practical for end users than 8x8 pixel AI sprite generation running on 40-year-old PC hardware.