Kerbal Space Program (KSP) 0.13.3

Kerbal Space Program (KSP) is a space simulator with which you will enjoy maximum realism. It's also a free game with great graphic quality.

Your mission is to design and build a spacecraft, a rocket that is capable of taking off and always remaining stable under any type of condition or atmospheric pressure.

The design and materials are entirely up to you and you can give your rocket the shape you want as well as distribute the fuel tanks and other compartments of the ship in the way that suits you.

The bad thing is that no matter how cool the rocket is, it must be viable and if yours is not, you will see it explode in the air or not even get out of the space shuttle.