Tiny & Big. Help Tiny recover his grandfather's magical underpants of teleportation stolen by the nefarious Big. A demo for a 3D physics puzzler involving a cutting laser and grappling hook. Youtube preview. Available for OSX (10.5), Windows, & Linux (32bit, 64bit).
Polynomial (yt) is a 3D space shooter with mathematically generated fractal scenery and models by Dmytry Lavrov with demos available for Linux, (Intel) OSX, & Windows. (via)