horizon-rust/horizon

Minecraft: Java Edition 26.3 rewritten from scratch in Rust, checked against vanilla with 281 differential harnesses. Get it with the Horizon launcher.

Open original source ↗

From the publisher

README & documentation

Source preview

Read the project’s overview, installation instructions and usage examples. The original README is the source of truth.

Website · Download · Documentation · Release notes · Roadmap · Project status · Contributing Horizon is Minecraft: Java Edition 26.3 rewritten in Rust: a native game that reads the same worlds, follows the same rules and generates the same terrain as the Java game, and is checked against it by 281 differential harnesses. You play it through a small launcher, on the files from your own copy of Minecraft. It is free, open source and unofficial. Horizon is installed through the Horizon launcher. Get it from playhorizon.dev (the Download button picks your system) or from the launcher releases, for Linux x86-64, macOS on Apple Silicon or Windows x64. The launcher installs and updates the game, prepares its files from your own copy of Minecraft, and updates itself. You need a Microsoft account that owns Minecraft: Java Edition (the launcher signs in with it, as other launchers do; see Microsoft…

horizon-rust/horizon on GitHub A short preview, not the full document.

Read the full README ↗ · Preview checked 2026-10-28T12:22:54.818Z

Inside the original README — Document outline
  1. Horizon
  2. Download
  3. What works today
  4. Host a server
  5. Modpacks
  6. Agent control
  7. Build from source
  8. Roadmap
  9. Contributing
  10. Project status
  11. Java parity: 100%
  12. Known issues

Headings are captured from the source. Links open the publisher’s document, not a locally hosted copy.

Links from the README

References supplied by the publisher, not independently verified endorsements. Check the destination before downloading files or entering credentials.

Documentation belongs to its respective authors. Reported project/model license: MIT. A listing is not a grant of reuse or training rights. Confirm the document’s own terms at the source.

What this repository does

Minecraft: Java Edition 26.3 rewritten from scratch in Rust, checked against vanilla with 281 differential harnesses. Get it with the Horizon launcher.

Repository facts

Owner
horizon-rust
Primary language
Rust
Stars
5,517
Forks
657
Open issues + pull requests
375
License
MIT
Archived
No
Default branch
main
Created
2026-10-03T17:08:48.000Z
Last push
2026-11-01T12:06:34.000Z

Topics and intended use

Owner-supplied topics: differential-testing, game-engine, gamedev, linux, minecraft, minecraft-java, reimplementation, rust, voxel, vulkan, wgpu

Review the README for scope, installation, examples and limitations. We do not run repository code or certify it.

Evaluate before installing

Review licensing and dependencies, inspect recent commits and unresolved issues, and test in an isolated environment before production use. Stars and forks alone cannot answer these questions.

README and project files

Issues and maintenance discussion

Releases and changelog

Source and freshness

Source: GitHub. Metadata observed 2026-11-01T12:18:40.947Z. Daily imports are snapshots, not real-time monitoring.

Popularity and source listings do not establish security, suitability, licensing rights or benchmark performance.

Open original source

Related repositories

ultraworkers/claw-code

clash-verge-rev/clash-verge-rev

farion1231/cc-switch

openai/codex

rustdesk/rustdesk

rust-lang/rust