3D Space Builder is available in the App Store.
Play it online in your web browser.
Build spaceships, aliens and other constructions in zero gravity
Build with 7 different types of blocks plus particle effect in 16 different colors.
Play with physics: push the blocks around in zero gravity or throw balls at them. Turn gravity on, upside down or set it to zero gravity.
Explore 3D models of the Solar System and the International Space Station.