itch.io

Games that challenge the player with critical thinking to solve levels. 

Offering easy-to-understand mechanics and accessible gameplay, this category emphasizes relaxed, enjoyable experiences suitable for players of all ages and skill levels.

Tools for making games.

Involving mathematics

Products that involve or comprise source code, including programming games; does not refer to products with their own source code available, open source or not.

Something out of the ordinary, or peculiar. Often far beyond one's imagination.