This one is a Windows 3.1 turn-based strategic game in which your goal is to dominate the universe wiping out any opponents. It allows for up to 12 players (human or AI).
The game is far from being visually attractive, yet it may be quite absorbing. It does not contain anything like a technology tree, races, spaceship building, diplomacy, espionage, planet micromanagement or a lot of other things we got used to due to bigger space-based strategy games. What you mostly do is choose which stars to colonize, how many of your ships to send in which directions or garrison.