Angel is a 2D game prototyping engine based on OpenGL and C++. It was originally made by a group of employees at Electronic Arts Los Angeles for use in a GameJam they were planning for April of 2008. Angel provides many useful functions for prototyping gameplay, including simple physics, particles, text rendering, sound, input mappings, config files, pathfinding, and Python scripting.
Zaz is an arcade action puzzle game where the objective is to get rid of all incoming balls by rearranging their order. Currently it includes 20 different levels and two modes of gameplay. The engine allows for easy custom level creation with unlimited number of paths, different speeds, ball-sizes, and rules. A 3D accelerator is needed for decent gameplay.
Construder is a 3D game featuring a dynamic infinite world of cubes to explore and change. In an artificial infinite structure, the player has to gather resources for construction purposes and for basic survival. Its 3D engine and basic game play are inspired by Minecraft and Infiniminer. The goal is to get 10,000,000 score points and get the "Construder" rank. Dangers the player might run into are starvation, as all actions require biological energy, and the randomly appearing robot drones that teleport the player far away. The game is feature complete and ready to play.