With PostScript you have zmachine.ps which is a ZMachine (zork and friends) interpreter to play text adventure games. And OFC there's a chess engine in PS, a t

With PostScript you have zmachine.ps which is a ZMachine (zork and friends) interpreter to play text adventure games. And OFC there's a chess engine in PS, a tic tac toe, and with patience you could even play NES games, but you might need to play with the stack a lot.