Open Source Games Projects

Open source video games, game engines, and game-development tools. Includes reimaginings of classic commercial titles, modern indie projects, and engines that can be used to build new games.

Battle for Wesnoth

Free, open source turn-based strategy game set in a high-fantasy world, with single-player campaigns and online multiplayer.

Alternative to:

Heroes of Might and Magic

Mindustry

Open source automation tower defense RTS — build factories, mine resources, and defend your core against waves of enemies.

Alternative to:

Factorio

OpenRA

Open source game engine that reimplements early Westwood classics including Command & Conquer: Red Alert, Tiberian Dawn, and Dune 2000.

Alternative to:

Command & Conquer

shapez.io

Open source base-building and factory-automation puzzle game inspired by Factorio — extract, cut, rotate, and combine shapes on an infinite map.

Alternative to:

Factorio