Doom for the VIC-20 This is a "port" of iD software's Doom, for the fully expanded Commodore VIC-20. It's a mixture of C and 6502 assembly. C is compiled with the cc65 compiler, which you can find on github. Features: cut down versions of shareware Doom's levels, minus the secret level sergeants, demons, imps and cacodemons, with AI code cut down from the Doom source fist, chainsaw, pistol, shotgu