An open source re-implementation of RollerCoaster Tycoon 2 🎢
Flexible level editor
Cataclysm - Dark Days Ahead. A turn-based survival game set in a post-apocalyptic world.
Diablo build for modern operating systems
Diablo devolved - magic behind the 1996 computer game
Complete Open Source and Modular solution for MMO
Industry-standard navigation-mesh toolset for games
OpenTTD is an open source simulation game based upon Transport Tycoon Deluxe
Space exploration, trading, and combat game.
An open source, turn-based strategy game with a high fantasy theme.
Lightweight and modular C++11 graphics middleware for games and data visualization
Written in C++ and using SDL, The Powder Toy is a desktop version of the classic 'falling sand' physics sandbox, it simulates air pressure and velocity as well as heat.
Game engine
C++ Action Roguelike in Unreal Engine 5.
A fast, scalable, distributed game server engine/framework for C++, include the actor library, network library, can be used as a real time multiplayer game engine ( MMO RPG/MOBA ), which support C#/Lua script/ Unity3d, Cocos2dx and plan to support Unreal.
Command the forces of The Project in a battle to rebuild the world after mankind has been nearly destroyed by nuclear missiles. A 100% free and open source real-time strategy game for Windows, macOS, Linux, BSD+
Third-person Survival Game for Unreal Engine (Sample Project)
Improved version of the X-Ray Engine, the game engine used in the world-famous S.T.A.L.K.E.R. game series by GSC Game World. Join OpenXRay! ;)
fheroes2 is a recreation of Heroes of Might and Magic II game engine
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