What if you’re minding your own business and all of a sudden you’re accosted by a strange looking man?
What if that man wasn’t from your world but rather the Universe Next Door?
What if his mere presence made it so you could hop between universes too?
What if you couldn’t control it?
Unbound is a GURPS campaign for 2-5 PCs conceptually similiar to the Sliders TV series. Worlds can have anything, and thus this is a challenging campaign to GM and keep balanced but well worth the effort for GMs and PCs alike.