Steffan O'Sullivan
panix.com
Review with a 2-player variant.
RPGnet
rpg.net
Review by Walt O'Hara.
RPGnet
rpg.net
Review by Steve Darlington.
The Game Report Online
gamereport.com
Review by Matthew Baldwin.
Bruno Faidutti
faidutti.free.fr
Review in English and French.
Jeff Goldsmith
gg.caltech.edu
Clarifications, Rulings, and Variants.