RPG Maker - Make your own PC game with RPG Maker. Our easy to use tools are simple enough for a child, and powerful enough for a developer. Try it free today!
RPG Playground - Make your own Role Playing Games, fast and easy.
Godot Engine - Feature-packed 2D and 3D open source game engine.
Open RPG Maker - Open RPG Maker is a free and open source clone of features from the RPG Maker series (i.e.
Solarus Action-RPG game engine - Solarus is a free and open-source Action-RPG game engine.
Unreal Engine - Unreal Engine 4 is a suite of integrated tools for game developers to design and build games, simulations, and visualizations.