Like most puzzle games, Propel contains almost the same basic mechanics. You find the exit, which is often cleverly hidden, so you can clear a particular level. However, despite the basic gameplay and mechanics, Propel manages to stand out thanks to the way it carefully combines platform gaming and solving puzzles. The game not only allows you to solve puzzles but it also makes sure that you practice and hone your motor-skills with its platformer type of gameplay. Propel was developed by Abscure Games and was actually a remake of an old game they had called "The Fall Game." If you're looking for an interesting puzzler, then give this one a go.