behavior-tree
for Rust!USE AT YOUR OWN RISK. This crate is under heavy development at the moment and a lot of the APIs will change often and without any notice. Performance is also terrible right now.
There are a few other crates that implement behavior trees (listed below). This library is inspired by all of them, as well as the Behavior Tree Starter Kit from Game AI Pro.
https://github.com/pistondevelopers/ai_behavior
https://crates.io/crates/aspen
https://gitlab.com/neachdainn/aspen
https://crates.io/crates/stackbtbehaviortree
The code was originally extracted from BITGUN, which continues to use it as it's being developed open source. If you're using this crate in your game do open a PR so we can list your game here as well!