In Umeå where I live we have an OSR convention / game day called Grottröj (“Dungeon Bashing”) once every quarter of the year. This time I ran the intro dungeon for Swords & Super-Science of Xuhlan, my setting for the Warriors of the Red Planet rpg. To make sure we would not waste valuable game time I had made six player characters using the Xuhlan races (humans, mutants, robots, formians, formiankin and lizard folk) with the WotRP classes (Fighing man, Scoundrel, Scientist and Mentalist).
In case you would like to use these characters, they can be downloaded here.
Caverns Measureless to Man 