Hyperbolic Geometry in HyperRogue
Channel: Center of Math
Date: 2015-12-18

Jacob demonstrates some of the interesting properties of the hyperbolic plane through a video game that exemplifies them. 

You can get HyperRogue at http://www.roguetemple.com/z/hyper/ for free, or the Steam-integrated, latest updated version at http://store.steampowered.com/app/342610/ for $2.99.