Roblox - Reimagining the way people come together.
Flowlab - Flowlab is an online game creator. Make your own games to share with friends.
Project Anarchy - Project Anarchy is a complete end to end game engine and state-of-the-art toolset for mobile.
Wick Editor - The Internet's free and open-source creation toolkit.
Limon Engine - Limon is a multi platform 3D game engine mainly focusing on first person games.
Unity - The multiplatform game creation tools for everyone.