Algodoo

You are in a solar system simulation and you need to do tons of orbital maneuvers in order to neutralize the collision of the two similar planets! Your planet is called Bluytov.

All red things represent the danger zone. In the solar system you have limited space because your planet is colonized, so your citizens mustn't deal with extreme weather conditions.
Your astronauts and scientists are ready for the mission off to go! You control your planet with arrow keys. Do orbital maneuvers to prevent the collision of two planets. In the case you go into the danger area or the planets collide, the game is over.

We don't know anything for the neighbouring planet Iopra, but we only know that the planets will collide after 9.7 Bluytov orbits.