OrbitRR

Please read the description, the game currently has no built in tutorial, and is somewhat complicated. 

Your goal is to launch a rocket from one planet to another across a series of strange stellar systems. Using predictive capabilities and the power to partially alter the mass of objects, you must launch, orbit, sling-shot, and land your way to victory. Make sure that your home isn't destroyed by out-of-control planets, land on your objective, and have fun with this complex simulation puzzle game! Play in full screen mode. 

Controls:

Pan Camera Using Right Mouse Button

Zoom In/Out with the Scroll Wheel

Left Click and Drag the Slider Bar to Speed Up/Slow Down Time!

Launch your rocket by left clicking and dragging  over the planet it's landed on!

Hold shift and use scroll wheel to change the mass of planets and suns near your cursor!

Corner Text Buttons will Center your Camera on the corresponding spot.

Example Images: 

Objective Target Planet

Launching Onto Another Planet

Slider Bar For Adjusting Game Speed