Tandis

Too bad there is not a sandbox mode. The ability to create and export as an OBJ files allows this game to almost function as an impromptu CAD program.

Wait a minute... Am I supposed to believe that you can turn a sphere inside out, but not a circle?

This game got me scratching my head, chest, armpits, abs, toes, all the stuff there is.

Were the devs able to solve their own puzzles??? I don't know, but you should certainly try it.

Go try it! hmm... maybe that could be rephrased...
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Go buy it NOW!

I used to listen to prerecorded lectures on topology so I could fall asleep, as the professor's voice was gentle and I love the idea of twisting things beyond human recognition.
I am beyond elated to finally apply my knowledge of turning donuts into spheres.
That said, you do not need to have a background in topology, as neither do I. If you have a love in your heart for bending, twisting, pinching, and whorling things, or you just love the way a shapeless mound of clay turns into an elaborate vase on the pottery wheel, I deeply recommend this game.

Beautifully challenging geometry puzzles this hurt physically to play

I don't know if there's anything quite like this. You are only given a few possible transformations for the square you start with, but it turns out to be incredibly freeform what you can get out of them. Very satisfying watching everything come into place as you solve each puzzle.

I really liked it and recommend it to people who like geometry