AGIWiki/Space Quest: The Sarien Encounter

Space Quest: The Sarien Encounter was a comedy adventure was a comedy adventure game created by Mark Crowe and Scott Murphy in 1986. The player character is Roger Wilco, a janitor aboard the starship Arcada who has fallen asleep in a broom closet when the ship was attacked. Now that every other member of the ship has been murdered, only Roger is left to save the ship and stop the evil Sludge Vohaul from stealing the experimental device known as the Star Generator.

There are two versions, the original made with the AGI system, and an enhanced remake made with SCI.