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Entropy is a Mod based on Valve's Source Engine.
Essence : Ultima Developper Kit
C# Game Development Engine and IDE based on Axiom graphics engine
The Evoke engine was designed to render 3D top down 3rd person perspective graphically intense games. It renders approximately 40 square metres of the world.
This is an open source racing game that is very similar to the old F-Zero game for the Super Nintendo. It utilizes the XNA framework as well as some of the models from the Space War XNA game, that are covered under the Ms-PL.(Windows version only.)
2D game engine based on HGE and suitable for creating small shareware games. Main features: UNICODE, Physics, World Editor, Sripting.
A Game State Machine for use with the HGE library, based on the Guff State Machine. A reusable architecture for game development to have a state corresponding to each game stage (or level), in order to ease their development and management.
Half-Life Nosteam with Counter-Strike1.6&Condition Zero, BlueShift, DeathMatch, Ricochet,Team Fortress, NaturalSelection & the Famous OpossingForce Nosteam.FULL Games
It's a 3D Game Engine with XNA.
Holy Reaper this is a bloody first person shooter created by ARStream Interactive Company
Industrial Game and Dragon Game Development Team
The Interaction Engine is a game engine for Windows built in C# using the XNA Framework.
A cyberpunk game inspired by Shadowrun.
A rogue-like game inspired by Dungeons & Dragons.
a Mario total conversion for the Source Engine, aiming to recreate the legendary 2D game play in renewed glory.
2D RTS MMO Videogame. Development intended for PC, Xbox 360, Wii, iOS, Android, Symbian and Blackberry OS.
Work in progress....
The Necrogenesis MMOG Project aims to provide a 3D fantasy life simulation along with aspects of RPGs such as skill training and monster fighting.
Objective-3D is a video-game library developped by Dream Overflow. It works on PC and Machintosh, and it is developped for Windows, Linux and MacOSX plateforms. Developed in C++.
Open Elements is an open source 2D or 3D game engine developed using Visual C# 2008. My goal is for a well structured library that people can use to develop many types of games.
OpenMH (Open Multi-Head) is an open source, multi-monitor management engine for use with DirectX/OpenGL applications and game clients.
A remake of the classic party racing game Micro Machines. The game will attempt to mimic the original features and contain some of the original maps as well as add new maps to the game and allow new maps to be easily created by anyone.
A C++ and directx game demo project displaying real world physics and world interaction. Code is opensource and is open for all discussion / feedback
PodiGoat Core 3 is a open-source framework written in Delphi language. It owns unique interfaces allowing to manage and control almost all part of engine. PGCore3 can be used as a main framework for any kind of 2D or 3D games and interactive apps.