horizon
Minecraft: Java Edition 26.3 rewritten from scratch in Rust, checked against vanilla with 281 differential harnesses. Get it with the Horizon launcher.
- differential-testing
- game-engine
- gamedev
- linux
- minecraft
- minecraft-java
- reimplementation
- rust
- voxel
- vulkan
- wgpu
- Stars
- 2,027
- Forks
- 132
- + today
- +2
- Created
- 24d
Ranking data as of October 26, 2026 (UTC).
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Overview
Minecraft: Java Edition 26.3 rewritten from scratch in Rust, checked against vanilla with 281 differential harnesses. Get it with the Horizon launcher. It ranks #364 on GitTiger, gaining +2 stars on October 26, 2026 (UTC).
The project is written in Rust and has 132 forks. It was created 24d ago.
What it is
Horizon is a Rust project that reimplements Minecraft: Java Edition 26.3 from the ground up. Its description says the behaviour is compared against the original game using 281 differential harnesses. Metadata lists Rust as the language, MIT as the license, and topics such as voxel, Vulkan, wgpu and reimplementation.
Capabilities described
- Singleplayer play with the original world generation, mobs, villagers, raids, redstone, commands, HUD and recipe book, using saves in the vanilla format. - Older worlds (1.8 through 26.2) are upgraded the way the original game does it. - Extras of its own: new menus (the vanilla ones can be switched back on), graphics presets and long-distance terrain rendering.
Important notice
The README states this is unofficial and has no approval from, or tie to, Mojang or Microsoft. It says Horizon ships no Minecraft code, assets or data; you must already own a lawfully acquired copy of version 26.3 of the Java game.
Getting started
The description points to the Horizon launcher. Exact install steps were not supplied, so check the repository README.
git clone https://github.com/ludovic111/horizon.git
cd horizon
# see README for setupFrequently Asked Questions
Does Horizon include Minecraft's game files?
No. The README says it bundles no Minecraft code, assets or data, and you must already own a lawfully acquired copy of Java Edition 26.3.
Is Horizon an official Minecraft product?
No. The README states it is not official and is not approved by or associated with Mojang or Microsoft.
How is Horizon checked for accuracy?
The description says it is compared against the original game with 281 differential harnesses. Further testing detail was not supplied.
How do I install Horizon?
The description mentions the Horizon launcher, but no commands or steps were supplied. Check the repository README.