FantasyQuest is a technical test how 2D games works
C-Lesh is a game programming language for 2D games.
2D Game Engine for the Java Programming Language
C# 2D Game Engine - Work In Progress
A game maker written in C# and FreeBASIC
Flickit is fun 2d physics arcade style game.
Javascript game library.
WGFX 2D Game Engine
Access to Irrlicht Engine SDK from assembler, C, Python, Basic, Pascal
An extensible development framework for roleplay games.
simulations with Lagrangian method,both symbolic and by numeric deriv
Advanced 2D/3D(CPU,GPU) Game Engine Library
2D top down arcade shooter
cross-platform 2d game engine
A game engine in java for 2D strategy games
Point-and-click 2D game engine
Java game engine for shoot 'em ups, using Java2D.
Java Game Engine 2D
Moddable 2D Fighter for Sega Dreamcast
A complete 2D Game Engine with built in drag and drop editor