M.U.L.E. was one.

Bruce Lee was another.

Gauntlet, was another cool multiplayer game.

Bop N. Rumble, a C64/PC game that had a wrestler guy fight off Ninja Grampas, old ladys with purses that turned into helicopters, etc.

Hovver Boover, "borrow" lawnmowers to mow your lawn.

Pirates!, argh, there be a cool game!

Master Of Magic/ Master Of Orion