1) DOS game 
Subtrade: Return to Irata is a multiplayer video game developed in 1993 by the German developer Century Interactive. It is a clone of the popular video game M.U.L.E. Subtrade was originally written for the Amiga, and later ported to MS-DOS. ==General information== Like M.U.L.E., the game is about four colonists (players) building up an economy on ...