Lovely puzzler Knotmania lets you play with alien tentacles
It's looking knot
The goal of the game is to untie knots by using multiple fingers. It's looking really good and features no IAPs at all.
The gross part comes from the fact that, contrary to what the title would suggest, you aren't untangling knots but "Strings", which are living aliens creatures.
Check out some gameplay below to get a better view of the lovely physics-based action in motion:
