itch.io

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

Focused on imparting a skill, lesson, or piece of information to its player that would be helpful to them in other aspects of life, such as a faster typing ability or knowledge about a period in history.

A popular game from 2013 where you must tap a bird to dodge pipes. Many clones & fangames were made because of the original game's success.