M.U.L.E is a linux port of clone of old MULE for C64 & PC.
This is a Linux/SDL port of a MULE clone. For those unfamiliar, MULE is an early resource strategy game.
You play a colonist on the moon, you acquire territory, and decide how to use it, by either farming, mining ore, collecting solar energy or mining crystals.
You compete with 3 other players, most points at the end of a preset number of months wins.