Real Time Strategy game engine supporting early Westwood classics
A dead simple 2D game library for Go
Pymunk is a easy-to-use pythonic 2d physics library
LÖVE is an awesome 2D game framework for Lua
Gideros Release version
Making multi-player gamedev simpler since 2017
Enigma is a puzzle game
Orx: Portable Game Engine
Game engine supporting many 3D/2D formats and graphic effects
A 2D Real Time Strategy space combat game.
A 2D scrolling platform shooter, inspired by Duke Nukem 1
Game library for Pascal
2D Platform remake based on the game from the 1980s
Old-school 2D game engine
SDL based generic 2D game engine
tour based strategic game
2D Open Source MMORPG
Internet Discussion Boards is a message board system by Game Maker 2k.