Roblox - Reimagining the way people come together.
Reality Factory - Reality Factory is a free suite of game development tools for building 3D games.
Brick Hill - Brick Hill is the ultimate building block game, allowing you to push the limits of digital bricks and make your own games.
Project Anarchy - Project Anarchy is a complete end to end game engine and state-of-the-art toolset for mobile.
Crey - Platform for making games and experiences
Wicked Engine - C++ game engine focusing on modern rendering techniques.