Javascript Canvas Framework
Dizzy Omega - sequel of Dizzy Y game
scriptable game engine with built-in support for 2D graphics and sound
2D ARPG Engine
RelaxChess, chess game that makes no search futher needed for a wow
A 2d physics game engine for JavaFX
creator : Nikola Lukic about : Visual JS 2d canvas multiplatform game
The ultimate 2D side scrolling engine. NOTE: Moved to GitHUB
A basic editor for 2d menus for Jmonkey
A snarky 2D management game about building and running a dungeon.
2D Space Arcade/RPG with Planets
2D game engine for traditional platform games
Flexible and easy-to-use 2d game engine
Gaming library
Qt-based 2d Match-Three Game
2d/3d Game Engine
Shoot 'em up with spaceship power-ups and lots of other surprises.
Paintown is a 2d fighting game engine.
Cross platform 2D/3D game engine written in C++11 & OpenGL ES 2/3
A Lua Game Engine