Open Source Games

Dungeon Crawl: Stone Soup official repository

No description.

Fallout for modern operating systems

Open Source codebase of the game Overgrowth by Wolfire Games LLC

ScummVM main repository

An OpenGL RTS game engine written in C

The original open source release of Wolfenstein 3D

Fallout 2 for modern operating systems

Chocolate Doom is a Doom source port that is minimalist and historically accurate.

IsoCity: City building simulation game.

OpenRW "Open ReWrite" is an un-official open source recreation of the classic Grand Theft Auto III game executable

Open-source clone of the original X-Com 👽

UZDoom is a feature centric port for all Doom engine games, based on GZDoom, adding an advanced renderer and powerful scripting capabilities

[ARCHIVED] Modern reimplementation of the Diablo 1 game engine

:deciduous_tree::house_with_garden::office::evergreen_tree: A city building simulation game

Decompilation of The Legend of Zelda: Twilight Princess

Athena Crisis is a modern-retro turn-based tactical strategy game. Athena Crisis is open core technology.

Keen Dreams on Greenlight!

A cross-platform minigolf game written in C.

A game of lonely space adventure

An open source re-implementation of Chris Sawyer's Locomotion

Tactical 2D shooter in fishy pixels style. Made with Rust-lang 🦀 and Bevy 🪶

The Turn Based Strategy Game/eSport. Master your beasts! 🐺

Command and Conquer Tiberian Dawn

Multiplayer top-down shooter made from scratch in C++. Web version: https://play.hypersomnia.io Made in 🇵🇱

3D City Builder without a grid

Command and Conquer: Renegade

A free and open-source Touhou Project fangame

Freeciv is a Free and Open Source empire-building strategy game inspired by the history of human civilization. Upstream repository for the standalone Freeciv client and server. Report bugs and submit patches at https://redmine.freeciv.org/projects/freeciv

Unknown Horizons official code repository

A free/open source client and automation tool for Ragnarok Online

Brogue: Community Edition - a community-lead fork of the much-loved minimalist roguelike game

An open source Minecraft reimplementation written from scratch. Mirror of https://gitlab.bixilon.de/bixilon/minosoft

Main development repository for Rigs of Rods soft-body physics simulator

Unreal Engine 1 Reimplementation

An Open Source Pixelart Science-Fiction Real-Time-Strategy game

AssaultCube

Source code repository of the FreeOrion project.

A modern re-implementation of the classic DOS game Duke Nukem II

Open source remake and Fan Expansion of Dungeon Keeper.

Unknown Horizons Godot Engine Port

Build engine port backed by GZDoom tech. Currently supports Duke Nukem 3D, Blood, Shadow Warrior, Redneck Rampage and Powerslave/Exhumed.

Open reimplementation of Might and Magic 6 7 8 game engine

Open source RTS game running on the Spring/Recoil engine

DDraceNetwork, a free cooperative platformer game

Reverse-engineered ports of Build games using EDuke32 engine technology and development principles (NBlood/Rednukem/PCExhumed)

The Stratagus strategy game engine

A port of Micropolis to JS/HTML5

FreeCol: FreeCol is a turn-based strategy game based on the old game Colonization, and similar to Civilization. The objective of the game is to create an independent nation.

Frogatto & Friends is an action-adventure game, starring a certain quixotic frog.