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Open source games

Multiplayer game servers and browser games. 20 self-hosted games tools are listed here, ordered purely by a repository health score that Repoly recomputes nightly. OpenTTD leads at 94/100 with 209 commits in the last 90 days and 8.4k stars, followed by Razzia (92) and Mindustry (88). 7 of the 20 score 70 or above, 4 publish a Docker image, and the median health is 60. GPL-3.0 is the most common licence, carried by 5 of them. The score weighs commits in the last 90 days, release recency, stars, archive status and Docker support; a low number means low measurable activity, not low quality, so a finished, stable tool can legitimately sit lower down.

updated Oct 2026 20 tools ★ 98k stars 4 with Docker median 60

Best for…

  • Most starred

    Mindustry

    29,534 stars on GitHub, the largest community in the category.

  • Most active

    Lila

    3,117 commits in the last 90 days, the fastest-moving codebase here.

  • Most permissive

    Razzia

    MIT licence with health 92/100: the strongest option if you need to embed or fork commercially.

Ranked by health

Table view

How the game tools compare

OpenTTD edges Razzia 94 to 92, and most of the difference is stars: 8.4k stars against 1.1k stars. Mindustry has the largest following at 30k stars, yet ranks #3 of 20, held back mostly by Docker support (no Docker image).

The most recent release is Luanti 5.18.0, published yesterday. Hypersomnia, The Battle for Wesnoth, DDraceNetwork and 3 more publish no tagged releases, which costs up to 25 of the 100 points. A Dark Room, Posio and Cubiks-2048 score under 40, so check recent activity before adopting them. By stack, C++ (9), Nodejs (3) and C (2) are the most common. Razzia, Luanti, 0 A.D. and 5 more are permissively licensed; OpenTTD, Mindustry, Veloren and 8 more are copyleft. Cubiks-2048 is source-available rather than open source, which limits commercial reuse.

Games: common questions

What is the best open source game tool?

By Repoly's GitHub health score, OpenTTD at 94/100 (209 commits in 90 days, 15.3 from 7 months ago). Razzia is next at 92; OpenTTD's lead comes mostly from stars. The score measures maintenance, not features, so shortlist the top few and try them.

Which game tools are the most actively developed?

Lila (3,117 commits in 90 days), DDraceNetwork (749 commits in 90 days) and Hypersomnia (668 commits in 90 days). Commit activity is 35 of the 100 health points, the largest single term.

Which game tools can I run in Docker?

4 of 20 publish a Docker image or Compose file, led by OpenTTD, Razzia, Hypersomnia and Scribble.rs.

Which game tools have a permissive licence?

8 of 20: Razzia (MIT), Luanti (LGPL-2.1), 0 A.D. (MIT), Scribble.rs (BSD-3-Clause), DDraceNetwork (Zlib) and 3 more. 11 are copyleft.

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