M.U.L.E.

M.U.L.E. is a seminal multiplayer video game originally written for the Atari 8-bit family by Ozark Softscape and published in 1983 by Electronic Arts. It was later ported to the Commodore 64, Nintendo Entertainment System, and IBM PCjr Japanese versions also exist for the PC-8801, the Sharp X1, and MSX 2 computers. While it plays like a strategy game, it incorporates aspects that simulate economics.