So I've been hearing about Antichamber from various places for awhile now and it just launched on Steam today. Regular price is $19.99 but it's on sale for $14.99 (25% off) until February 6th. So what ...

THE two books under notice together constitute an excellent introduction to non-Euclidean geometry in all its aspects. The lectures of F. Klein now appear in print for the first time under the ...

Just released on Steam is Non-Euclidean Chess, a twist on the most archetypal and greatest turn-based strategy game of all time that turns the whole concept of chess upside-down - literally, in some ...