It's very polished: "ALIEN is an artificial life simulation program that runs on a GPU. Its simulation code is written entirely in CUDA and highly optimized fo

It's very polished: "ALIEN is an artificial life simulation program that runs on a GPU. Its simulation code is written entirely in CUDA and highly optimized for large-scale real-time simulations of millions of bodies and particles (see the links for more information). This channels features real-time captures of simulations and technical demonstrations of the latest version."