Master of Orion

Master of Orion is a turn-based, 4X science fiction computer strategy game released by MicroProse on the MS-DOS and Mac OS operating systems. The purpose of the game is to lead one of ten races to dominate the galaxy through a combination of diplomacy and conquest while developing technology, exploring and colonizing star systems.

* Note: this game Will only Run in 640x480 , if you tab out of game and re open it it will be in window mode . practical but you can go to full screen again by pushing alt + enter if so wished *