Castle Game Engine - An open-source 3D/2D game engine for ObjectPascal.
Godot Engine - Feature-packed 2D and 3D open source game engine.
Open 3D Engine - Open 3D Engine is an open-source 3D game development engine in real-time.
MonoGame - MonoGame is an open source implementation of the Microsoft XNA 4 Framework.
WaveEngine - The definitive free cross-platform mobile engine to unleash your games using C#.
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!