Best Open-Source Games & Game Tools
Open-source games, emulators and launchers you can download and run locally, ranked by stars.
| # | App | Stars | License |
|---|---|---|---|
| 1 | GDevelop | 24.6k | NOASSERTION |
| 2 | osu | 18.7k | MIT |
| 3 | OpenRA | 17.1k | GPL-3.0 |
| 4 | OpenRCT2 | 15.9k | GPL-3.0 |
| 5 | openage | 14.3k | NOASSERTION |
| 6 | nakama | 12.9k | Apache-2.0 |
| 7 | tiled | 12.7k | NOASSERTION |
| 8 | Cataclysm-DDA | 12.6k | NOASSERTION |
| 9 | Unciv | 11.0k | MPL-2.0 |
| 10 | DevilutionX | 9.6k | NOASSERTION |
GDevelop is an open-source, cross-platform game engine for creating 2D, 3D, and multiplayer games. It is designed to be accessible for users of all skill levels.
osu is a rhythm game where players click to the beat of music. It focuses on timing and precision to match on-screen cues.
OpenRA is an open-source real-time strategy game engine designed to recreate early Westwood Studios titles like Command & Conquer: Red Alert. Built in C# with SDL and OpenGL, it supports Windows, Linux, *BSD, and macOS.
OpenRCT2 is an open-source recreation of RollerCoaster Tycoon 2, preserving the classic theme park simulation gameplay. The project expands the original game with new features and improvements while maintaining compatibility.
openage is an open-source engine clone of Age of Empires II. It aims to recreate the classic RTS gameplay with modern enhancements.
Nakama is an open-source game backend server that supports multiplayer, matchmaking, leaderboards, chat, and social features. It is designed for scalability and can be integrated into various game projects.
Tiled is a flexible level editor for creating game maps. It supports various tile-based game designs.
Cataclysm: Dark Days Ahead is a turn-based survival game featuring roguelike elements in a post-apocalyptic setting. Players scavenge resources, craft items, and face mutated creatures while navigating a procedurally generated world.
Unciv is an open-source strategy game that recreates Civilization V for Android and desktop platforms. It offers turn-based gameplay with similar mechanics to the original title.
DevilutionX is a modernized version of the classic Diablo game. It runs on current operating systems while maintaining the original gameplay experience.
Frequently asked questions
- What is the top pick in “Best Open-Source Games & Game Tools”?
- GDevelop currently leads this list, which is ordered by GitHub stars among the 10 open-source options we track.
- Are these apps free?
- Yes. Every app on this list is free and open-source. Download links point to each project's official release.
- How is this ranking decided?
- The order reflects GitHub stars, a public measure of popularity. Data is pulled from official sources and last refreshed on a recent run. We don't accept payment for placement.
How we rank:entries are ordered by GitHub stars, a public popularity signal. Versions, licenses and platform support are read from official release feeds. We don't accept payment for inclusion or position. Supported platforms reflect the latest release (Linux, macOS, Windows, iOS, Android).