Erehwon

Baf's Guide

A dense web of mathematical puzzles and in-jokes, Erehwon is one difficult game for those who aren't well versed in higher math--and yet it's so wittily done that it's worth playing through with a walkthrough in hand, just to see the prose and appreciate the crafting of the puzzles. You're wandering around the towns of Erehwon, Aksarben and Nowhere, Nebraska, which are linked by what amounts to a Klein bottle, and along the way you turn yourself and other things from matter to antimatter without having the latter come in contact with the former. It's littered with puns and Easter eggs, and obscure pop-culture references, and full of off-kilter humor that takes some getting used to, but it's still plenty of fun.

-- Duncan Stevens