Link: http://dmytry.pandromeda.com/games/index.html

Got a decent graphics card? Works on all Operating Systems - (yes even Linux) ...

Polynomial is a 3D space shooter with mathematically generated fractal scenery and models. It is easy to get started - you fly around, shoot some stuff, collect some other stuff, and dodge enemy bullets, all while admiring the trippy scenery and self-repairing by flying close to stars. When you're comfortable, you can set difficulty to "Insane" (press esc) for a very fast paced gameplay.

It really does not install - just sits in a folder. So no worries there - try out the demo... and check out the screenshots!