Placeholder Worlds for Desperate GM's of Multiverser/AH RPG's

Fifteen settings sketching out adventure and peril for the extra-dimensional traveller who has wandered a bit further than his gamemaster is quite ready for. Suited for all types of extra-dimensional gaming. --publisher's description In his blog, the author specifically mentions using it with Multiverser, Amber, and GURPS, and any game that allows for interdimensional travel.