Lightspeed Frontier is a space based open world sandbox game where you build spaceships from modules in realtime, explore the galaxy, conduct diplomacy or fight your way out of problems and in the end: find your way back to Earth. Currently the game is still in pre-alpha with a lot of content missing.
A slightly outdated trailer showing Pre-Alpha footage.
Music:
Clear Eyes - Silent Partner
Funk Machine - Jay Man (http://www.ourmusicbox.com)
Periscope - Audionautix.com