RingWorld

Science fiction RPG produced by Choasium. Uses a variant of their Basic Role Playing (BRP) rules.

Set in Larry Niven's hard SF Known Space universe, on the megastructure known as the RingWorld.

Now out of print, but can be found on auction sites, such as Ebay.

For further information see:

RingWorld RPG site

Ringworld RPG Yahoo group

Larry Niven fan site