Orbt XL is inexpensive, supports trading cards, leaderboards and achievements, lasts a couple of hours to see it through to completion, and most importantly, it's FUN.
A simple one-button control scheme allows you to pull your orbiting planet away from the event horizon of a black hole, scoring one point for every complete orbit of the screen your planet achieves. Obstacles such as comets, other planets and even other black holes are gradually introduced, and if you hit one, it's game over.
Getting back into the game is quick and easy, and you'll keep going back until you've achieved and unlocked everything. The developers trademark polish is evident throughout, with nice effects and great music.
An easy recommendation for achievements, but that's all there is to it: It scores slightly above average, as once you've finished it and appreciated the elements above, you'll probably not go back.
~M~
3.0