Another one in the same genre is Space Engineers - http://store.steampowered.com/app/244850/

Still pre-release but very playable, 4/5 stars.

    Space Engineers is a sandbox game about engineering,
    construction, exploration and survival in space and
    on planets. Players build space ships, space stations,
    planetary outposts of various sizes and uses, pilot ships
    and travel through space to explore planets and gather
    resources to survive.

Haven't played it myself, but my son loves it.