Boltzmann is a sandbox game about creating your own universe using real orbital mechanics, in a simulation loosely based on reality: you can freely create blobs of matter, and if they get big enough, they enter nuclear fusion and become entire stars. Blow up these stars with Nova Bombs, and fill your empty universe with a diversity of rocks, planets and beautiful orbits while listening to a relaxing soundtrack. Great for people that like space and physics!
Boltzmann - Space Sandbox
