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Independent client · Rust · WebAssembly

Horizon - Minecraft on Rust

Nuclear explosions, giant spaceships and lasers from orbit – modders are looking for new frontiers of Minecraft’s capabilities.

Horizon is not just another mod, but individual client on Rust with its add-on system. Developers are experimenting with large-scale effects and complex game mechanics, creating space for projects that are difficult to implement with the usual tools of Java-modding. Take a look at what Horizon looks like in action. A separate launch is used for the launch. Horizon Launcher.

Horizon in action

Look at what Horizon is capable of.

Video from the world of Horizon
Horizon - Demonstration 1
Horizon - demonstration 2
Horizon - demonstration 3
Horizon - Demonstration 4

The source code v0.2.92 · ZIP, 24.3 MB · is not a ready-made installer.

Horizon is an independent project: it is not an official version of Minecraft and is not affiliated with Mojang/Microsoft. You need your own copy of the Java Edition. BlockRadar does not distribute game files.

Description and capabilities

  • What's this? A separate client and engine, not a Fabric/Forge/Paper mod.
  • Opportunities: own Rust/WebAssembly-mods, resource and data packages, graphical settings, single-player and dedicated server.
  • Limitations: Connection to Microsoft-authorized servers is not yet supported.

How to install Horizon

  1. Install your licensed copy of Minecraft: Java Edition 26.3 and run it at least once.
  2. Install Java 25 for initial preparation of game files.
  3. Download. Horizon Launcher from Developer Site. Select the version for Windows x64, Linux x86-64 or macOS Apple Silicon.
  4. Launch the launcher: it will prepare resources from the version of Minecraft you have installed.

Creating mods for Horizon

Want to create your own Minecraft Horizon mod on Rust? We have prepared a step-by-step Russian-language guide: tool installation, assembly, Mod API, error checking and ready-made examples.

Read the instructions for creating mods

AI Construction in Horizon: Mortar

Mortar A separate AI agent that communicates with Horizon through built-in Agent Control. It allows you to set buildings with text, view the result before placing and create datapacks. It’s not part of the Horizon engine, nor is it a regular Java mod.

How Mortar works with Horizon - read the news

Mods and compatibility

Horizon uses its own mods on Rust/WebAssembly. Support and compatibility of individual additions depend on the version of the project. Resource packs and datapacks are supported with project limitations. Before installing, check the current developer documentation.

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Versions and updates

The latest versionlauncher@0.2.38
Stable.

According to the official source * . To install, choose a release that is compatible with your version of Minecraft.

Latest updates (3)
  • launcher@0.2.38 ↗Stable.

    The launcher has a whole new design: glass panels over a pixel-art sunset, a new sidebar and top bar, and every page rebuilt around it. New A new look everywhere. Home now has tabs for your instance (Overview, Worlds, Multiplayer, Packs, Screenshots, Mods, Console). Servers, Create a server, your server's Players, Settings and Backups, Versions, Patch notes and Settings all follow the new design. Make it yours. Pick an accent…

  • launcher@0.2.37 ↗Stable.

    Fixed Native mod builds: no space in the Windows build folder (#6818) Recipes: the loot data and the server's sync share one read of the recipe folder (#6745) Native builds: a dev profile for mod developers (#6760) MCP: serve the stateless 2026-07-28 revision from one implementation (#6587, fixes #5673) Launcher: import a game build you already have as its own version (#6700) Contributors Thanks to @JustKarkat, @arismoko…

  • launcher@0.2.36 ↗Stable.

    New Native mods: export a headless engine for dedicated servers (#6462) Fixed Play with friends: the host attaches from any port when its direct port times out (#6363, fixes #6342) Launcher: Fix the version picker overflow and the low contrast text/buttons on several tabs (#6389) Connection cipher: hardware AES, CFB8 decryption many bytes at once (#6437) Launcher: a failed instances.json save is printed (#6483) Launcher…

The latest release on the developer's website ↗ • The full story is with the author of the project.

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