AliensRL is good, but it needs just a tiny bit more flavor. Scatter around some computer terminals that give partial maps as well as some log files from the inhabitants of the station before and during the incident. Place some corpses around each level from which you can collect dog tags or other personal artifacts which could be recorded in your player file.
I think bones files would be a particularly potent expression of that, in addition to being of practical use if you happened to have died with anything decent. The implementation doesn't need to be terribly detailed, you don't need to save whole levels and junk as with traditional bones stuff from other RLs. Just spawn an old player corpse in some random location on the level they died at. Bones just seem more appropriate for AliensRL than almost any other game I can think of.