itch.io

Uses two-dimensional "sprites", 2D images created and used on a flat plane, as opposed to the three-dimensional models or environments found in 3D games.

Projects that use a Hexagonal Grid. Cells that have 6 sides.

Games where you have to manage resources in order to complete objectives. 

Involving mathematics

Games that don't have vilolence as a primary component.

Games which have short playtimes and can usually be completed in one sitting.