Dubiduh is a new 2D puzzle game created by @niorad. It was inspired by Snakebird and the panels on The Witness.
The goal is simply to pick-up the heart in every level. You control the snake-like creature, and can swipe or press the cursors to move in any direction.
As the levels progress new features are introduced, like the need to pick-up keys to open gates. Your creature fills-up a square as it moves, and although you can cross over yourself, you can't go back, so it takes brain power (and a bit of trial and error) to complete the levels.
Great fun :)