I recall from many years ago a couple of pen and paper RPGs which were good fun. Traveller which was based in a Science Fiction universe - a sort of Si - Fi D&D - a search of EBay might turn up something - I just quickly looked and found 45 items for Traveller .
The other was En Guarde! - this was role playing as a 17th Century gentleman in France - sort of the 3 Musketeers meet D&D!! You swanned around trying to increase your influence and personal fortune while wooing other people's wifes etc The last activity often lead to duels with enraged husbands - or other suitors - so there was a nice 1 on 1 combat system.
Back in the 80's when these things were all the rage, you could act out just about anything - Thinking about it, I recall a really good western set as well for all wantabee John Waynes. The other thing I recall was that a lot of these were a reaction against D&D which we all enjoyed, but all resented paying out lots of money for the every changing, constantly increasing sets of rules, books etc, etc. Most were a simple set of rules for you to have a bit of fun with some mates, preferebly after a drink or 2.