Mooncop by Tom Gauld, 96 pages.
Gauld's spare, minimal drawings adequately convey the loneliness of the moon colony he has created. The colony is slowly being depopulated with only the mooncop and one or two others left. The mooncop (pretty sure he is unnamed) is there to make sure that crime is under control, though it's been a long time sincde that has been a problem more serious than a lost dog or a wandering robot.
Sad, somewhat bittersweet, and interesting.