Keep your bearings: textured world views, navigation, movable HUDs and ordinary player assistance in a familiar Minecraft interface.
Java edition 1.4.0-beta.1 · Minecraft 26.3 · Java 25. These jars run in Java Edition through Fabric or NeoForge. Horizon uses the separate native Rust package; never put a Java jar into Horizon's native mod installer.
The menu now defaults to 100% at the former 70% physical size. Its 50–300% slider and 100% reset scale only the menu; saved physical sizes and HUD placement remain intact. Drag the slider and release to apply, use keyboard arrows, or use Apply size.
Choose exactly one loader:
| Edition | Required environment | Download |
|---|---|---|
| Fabric | Minecraft 26.3, Fabric Loader 0.20.1+, Fabric API 0.165.2+26.3 | rusty-fabric-1.4.0-beta.1.jar |
| NeoForge | Minecraft 26.3, NeoForge 26.3.0.101 | rusty-neoforge-1.4.0-beta.1.jar |
Install the matching jar in that Java installation's mods folder. Fabric also needs Fabric API. Do not install both Rusty loader jars together. Java 25 is required. Earlier game versions, snapshots, shader replacements and third-party rendering mods are not validated.
Press Right Shift for the menu or use Options → Rusty. X toggles X-ray; C holds Zoom. Every shortcut can be rebound or cleared. X-ray also offers Hold mode. Status HUD is the only enabled module by default; restricted tools additionally need server permission in multiplayer.
Aim at opposite block corners and use Set first corner / Set second corner, review the inclusive box and explicitly enable Area Clear. The box is limited to 32 blocks per axis. Its normal-control planner works on the highest eligible layer and never deliberately excavates outside the box. Independent health, food, tool-reserve and preview preferences have individual defaults. Containers, hazards and unsafe or unreachable leftovers are reported rather than hidden. Starts off and unbound; manual input and menus stop it without automatic resume. Multiplayer retains the existing view + movement + assistance grants. Full controls and safety limits.
Entity Tracers has its own Players, Mobs and Dropped items switches, separate from Entity ESP. Use any combination or none; Default restores each choice. Older profiles inherit their former shared choices once. Fresh settings select players only and leave the feature off.
X-Ray changes terrain only. Enable Finder separately for target lines and boxes; their controls are under Finder. X-ray toggles do not enable Finder, change its state or reset saved line preferences.
X-ray retains the surrounding blocks' original material, tint and texture coordinates along their edges. Block textures controls retained face area: 25% initially, thin original-texture edges at minimum, full ordinary terrain at maximum. Selected blocks remain whole. Choose typical ores or add any registered block ID under Selected blocks. Finder scans only already received, loaded chunks; radius, height and target limits bound work. Terrain selection applies across the loaded view; Finder radius bounds scanning and pointers rather than forcing full-world remeshing as you walk.
The menu uses Minecraft buttons, text fields and sliders. Search tools; browse Enabled, Favorites, Recent and categories. Click ? for a short explanation. Adjust menu size independently of HUD size. Edit HUD opens the clear game view with your enabled overlays. Drag a panel to move it, or drag a corner handle to resize it proportionally. Press Enter / Done to save and return to the same menu; Escape / Cancel discards the draft. Default panel and Default layout reset provisional arrangements. Default full-width packing keeps panels apart and reserves the hotbar area; manually placed panels can overlap by choice. Small viewports constrain the requested size so controls remain usable. Feature profiles preserve local bindings, theme, favorites and HUD arrangements.
The 45-module catalog includes Area Clear, Auto Mine, the independent Enabled Mods list, X-Ray/Finder, entity and storage outlines/tracers, Fullbright, No Fog, Clear Weather, Zoom, detached Freecam, compass/coordinates/waypoints/death markers/breadcrumbs, a surface minimap, equipment/environment/embedded-container information, chunk borders, sampled Light Risk, approximate projectile paths, portal coordinates, speed/clock/frame-rate/click counters, normal sprint/jump/crouch assistance, tool/food/armor/refill/totem assistance, full-cooldown crosshair attacks and explicit waypoint walking/build placement.
Auto Mine has eleven ore presets and an aimed Custom block, a search radius, a block goal, optional access tunnels and a green route preview. Ordinary controls perform actions. Server acknowledgments must settle predicted openings before they count or become usable for movement. Supported collection steps approach the drops. Stops never restart themselves, and the mode starts off and unbound. Multiplayer requires the current server's view + movement + assistance grants. Controls and conservative limits.
Important Java-edition differences:
- Minimap samples received surface colors; it has no underground layer. Frame Rate shows Minecraft FPS, without native Horizon low-percentile measurements.
- Projectile estimates support bows, pearls, snowballs and eggs against received blocks/fluid drag. They do not predict entity collisions, random spread or future movement. Light Risk is a floor-light sample, not a complete spawn prediction.
- Auto Fish reels one received bite on your owned hook; cast manually to begin or start the next cast. It does not invent bite information.
- Freecam moves only the view. Your body remains in ordinary simulation, can fall or take damage, and does not load chunks at the detached camera.
- Build Planner requests one normal held-block placement per explicit click. Vanilla multi-block items may have their normal multi-block effect. No automatic build loop or reach bypass exists.
- Inventory assistance uses normal client actions. To avoid blindly retrying an authoritative correction, identical attempted sources remain stopped until you explicitly toggle the corresponding feature off/on. Menus and manual input cancel automatic ownership. Servers still decide every result.
Ordinary information and presentation tools work on an unmodified server. Restricted tools fail closed without the server's explicit opt-in; a local profile cannot grant permission. Singleplayer grants capabilities locally. This follows Modrinth's project rules.
A server owner can optionally install the matching Rusty jar (and Fabric API on Fabric). On first start it creates config/rusty-server-permissions.json, with no grants by default. Edit it to grant only the capabilities wanted, for example:
{
"schema": 1,
"everyone": [],
"players": {
"PLAYER-UUID-HERE": ["view"]
}
}| Capability | Modules |
|---|---|
view |
X-Ray, Finder, Entity ESP/Tracers, Storage ESP, Freecam |
combat |
Trigger Bot |
movement |
Auto Sprint, Safe Walk, Auto Jump, Waypoint Walk |
assistance |
Auto Tool/Eat/Fish/Totem, Armor Assist, Refill, Build Planner |
everyone can grant capabilities to all players. Use actual authenticated player UUIDs on your server. Changes are checked once per second and sent only server-to-client. Revocation stops effective restricted features; requests/settings can remain saved. Disconnecting or changing connections clears grants; a new server must grant its own. A dimension change keeps that connection's permission while resetting world caches and camera ownership. Invalid files deny capabilities. Check your server's rules before using any tool.
Rusty never requests deliberately withheld ore information, defeats anti-X-ray, changes packet contents or alters server authority. Anti-X-ray replacement blocks cannot be recovered by a client view.
Use JDK25:
cd java
./gradlew :core:check :fabric:build :neoforge:buildOn Windows use gradlew.bat. Loader jars and source jars appear under each loader's build/libs. The wrapper pins Gradle 9.8.2 and its distribution checksum. Official Loom 1.19.3 and ModDevGradle 2.0.148 supply game integration. Shared Java game code avoids a platform-specific JNI library; the Horizon runtime remains native Rust.
The separate qa source set is development-only and is never included in download jars. -PrustyQa=singleplayer requires an explicitly prepared disposable run/saves/RustyLab world and refuses other paths. Do not run game fixtures against personal saves. Remote fixtures refuse non-loopback addresses. See Java validation for actual evidence and limits; compilation is not game verification.
Apache-2.0 with applicable project notices. Preserve LICENSE, NOTICE and third-party notices. No Minecraft game files, account data, worlds, test fixtures or loader libraries are bundled. Rusty's original copper mark is distinct from the official Rust-language logo.
Enabled Mods is an opt-in Interface tool: active Rusty tools appear alphabetically in separate top-left rows. Move or resize the panel in Edit HUD. A selected panel has Default panel, and Default layout restores all panel arrangements.
Visible Default buttons restore individual values and bindings; Clear removes a binding. Restore defaults in the menu footer opens Minecraft’s confirmation screen and restores all preferences and default shortcuts, stops active tools, and keeps saved waypoint/profile files. Default ores restores the normal block selection.
Build Planner → Load schematic… opens the native operating system file picker. Review the origin, rotation/mirror and exact states; Copy all materials copies item counts, stacks, available inventory and manual-state notes. Construction starts explicitly, sources the main inventory and uses ordinary walking and placement with received settlement. Two inclusive corners in an opened world can be exported as a states-only .schem. Formats, workflow and conservative limits. The current-server view, movement and assistance permissions remain required in Java multiplayer.