Outpost is a video game developed and published by Sierra On-Line. In general terms the game is a science-fiction version of SimCity, taking place on a distant planet. The game was noteworthy for having a hard science fiction approach, with one of the main designers being a former NASA scientist.
Outpost was released simultaneously for DOS and Windows 3.1, and was also released for the Macintosh. It was followed by a loosely related sequel, Outpost 2.
Source: Wikipedia, "Outpost (video game)", available under the CC-BY-SA License.