KBVE Behavior StateTree

This is a core plugin for our KBVE behavior state tree, which is open source and written in rust using JNI.

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87 Downloads
fabric
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About this Mod

KBVE Behavior StateTree

This is a behavior state machine that is written using Bevy in Rust, then ran using JNI. The objective is to build out an open source foundation of ECS-style behavior trees using queries with the aim of moving the heavy logic off the minecraft's main thread.

Bevy

This is an ECS framework, that we are using in a similar way that Hytale uses FLECS for their ECS.

Tokio

This is a runtime that provides the multi-threading.

JNI

The layer between the java and rust.

Available Versions

behavior_statetree 1.0.58release
MC 1.21.11fabric
May 24, 2026
behavior_statetree 1.0.57release
MC 1.21.11fabric
May 22, 2026
behavior_statetree 1.0.56release
MC 1.21.11fabric
May 20, 2026

How to Install KBVE Behavior StateTree on Your Server

1

Order Server

Order a Minecraft Java server with at least 3 GB RAM (4 GB recommended).

2

Set fabric Loader

In the panel under "Egg", select the fabric loader and matching Minecraft version (1.21.11).

3

Install Mod

Open the mod browser in the dashboard and search for "KBVE Behavior StateTree". Click "Install" – done! Alternatively, upload the .jar via SFTP to the /mods folder.

Compatibility

Mod Loaders

fabric

Minecraft Versions

1.21.11

Server-side

Unsupported

Recommended RAM

4 GB(min. 3 GB)

Frequently Asked Questions

KBVE Behavior StateTree server crashes on startup – what to do?

Most common cause: wrong fabric version or insufficient RAM. Check the server log (latest.log) for "OutOfMemoryError" or "Mixin" errors. With Mado Hosting: ensure at least 3 GB RAM is allocated and the loader matches the mod version (1.21.11). You can switch loaders with one click in the panel.

Is KBVE Behavior StateTree compatible with fabric?

KBVE Behavior StateTree officially supports fabric for Minecraft 1.21.11. The Mado dashboard automatically detects incompatible loader combinations.

Server lagging with KBVE Behavior StateTree – how to optimize performance?

Recommended RAM: 4 GB (per 8 players). Use /spark profiler to check if KBVE Behavior StateTree consumes the most tick time. Common fixes: reduce server view-distance to 8-10, install "performant" or "starlight" as supplementary mods on Forge. With Mado Hosting, your server runs on NVMe SSDs with dedicated CPU cores for minimal latency.

Rent Modded Server

Install KBVE Behavior StateTree with just one click on your server.

Recommended RAM
4 GBab €8/mo
Min. 3 GB | +1 GB pro 8 Spieler
Create Server Now
1-Click Mod Install
NVMe SSD Storage
DDoS Protection included

Details

License
LicenseRef-LicenseRef-KBVE-Custom
Server-side
Unsupported

Supported Versions

1.21.11