Orx: Portable Game Engine
Game engine supporting many 3D/2D formats and graphic effects
Vivid3D is an open-source 3D engine with powerful 2D UI.
A fork of dhewm3 with an emphasis on modernisation and vanilla Doom 3
Open source reimplementation of GTA San Andreas game engine in Unity
Go 3D Game Engine
Spring is a free RTS engine developed for Windows, Linux and Mac OS X.
QQ Group:538722494,KSFramework = KEngine + SLua(or xLua)
Improved version of the X-Ray Engine, the game engine
3D Game engine with editor
Data-oriented and data-driven game engine written in Rust
KlayGE is a cross-platform open source game engine
A cross-platform 2D game engine
Planimeter Game Engine 2D - LÖVE-based game engine for Lua
Game engine for playing tomb raider 1 - 5 levels.
scriptable game engine with built-in support for 2D graphics and sound
A mobile game distributed server implemented using netty4.X
online 4X browser game engine
Multi-platform game engine similar to old Megaman with a stage editor
2D physics engine for games
A generic 2D engine for any kind of game
TR Game Engine allows you to develop your game quickly and easily.
C++ Text Adventure Engine
Javascript adventure game engine