If you're a fan of abstract puzzle games, then Cipher Studios' Splice should pique your interests. The entire game takes place under the microscope, where it's your job to re-arrange and splice together strands of DNA (hence the name of the game). Each cell will react differently to different splices, so it's up to you to figure out how to successfully restructure each strand and completely the sequence.
The game features over 75 different puzzles, each of which contain a limited number of splices in order to complete. For replayability, each level also has an angelic solution, where the sequence is solved in only a few splices.
Splice will set you back three bucks in the Store - hit the widget to give it a shot.