I’m running a campaign of what I’m currently calling Nevre RPG. It’s a pen and paper fantasy role playing game with the world based on the realm of Nevre.
*Lore spoiler in next paragraph!*
One idea I’m trying to work into the game right now is that almost all of the races came from human offshoots and that humans came from a technologically advanced planet somewhere in the galaxy.

One of the ways I’ve started to hint is by creating custom skills and asking if players want them. These skills won’t be included in the rule book, but custom skill creation will be.

Whether or not the players are picking up what I’m putting down is still to be determined, but by the end of the campaign I plan for them to know there are space-faring societies in the game’s universe.