Free Android 2D OpenGL Game Engine
A Simple Game Engine
Turn Based Game Engine (GMS GML)
A retro style video game engine for RPGs and adventure games.
2D Game Engine, based on OpenGL and focused on Isometric Games
Role Playing Game Engine
3D game engine for C and C++
A truly extensible cross-platform game engine
Open source, moddable game engine for the "Polygon Love 2" game
A very small multi-platform game engine for creating desktop games.
Little game background framework in java.
A lightweight HTML5 Game Engine
First-person game engine
UtiliGame is a light-weight game engine written in Java.
Game engine for Shining-Force style tactical RPGs
2D Game Engine for the Java Programming Language
Java Client + JS/Canvas Server-Side System, with maintained Objects
Javascript adventure game engine