Coding is fun! - Series of logic puzzles using programming principles

PlayCanvas - PlayCanvas is an open-source game engine built on WebGL and WebVR.

HabitScript - Gamify your coding time

This is my game - I created this game with a website called flowlab

Goals & Challenges by Fini - A social way to gamify goals and habits with challenges

Godot Engine - Feature-packed 2D and 3D open source game engine.