Godot Engine - Feature-packed 2D and 3D open source game engine.
Player.me - Player.me is the social discovery platform for the gaming community.
Unreal Engine - Unreal Engine 4 is a suite of integrated tools for game developers to design and build games, simulations, and visualizations.
Replai - Unlock the full potential of your video creatives with Replai
BYOND - BYOND is the premier community for making and playing online multiplayer games.
Megacool - Simple SDK to record and share gameplay as a GIF