FREE: Simple Rockets [Steam Key]

The listing, Simple Rockets [Steam Key] has ended.

CREATE
Connect parts together to build rockets. You can choose from a variety of rocket engines, fuel tanks, and other gizmos. You can even build rovers with powered wheels.

EXPLORE
Blast off from any planet you want. You can fly through the intense atmosphere of Venus, or you can take advantage of the low gravity of Mercury. Whip around the sun and launch yourself out to the far reaches of the solar system.

CHALLENGES
Several challenges are built into the game so you can have fun while learning about real rocket science. Challenge yourself to orbit with the least amount of fuel, land on the moon, and so much more.

More info: http://store.steampowered.com/app/343090/
------------------------------------------
This game works on mac too! Also includes steam trading cards

Good Luck!