SentinelLib
Java mod listed for Minecraft 1.20–1.21. Downloads from the MC Java Mods app on Android.
I don't know my version or loader
This is a small lib made out of necessity that's only purpose is to make mob combat a bit more engaging. The typical way Minecraft handles melee combat is checking whether an entity is within a certain distance of another entity and dealing damage, which is kinda boring. Then of course you can apply a hitbox to every attack, but writing the code for the hitbox repeatedly becomes redundant and messy. Not to mention, they don't natively render and MC restricts hitboxes to AABBs (Axis Aligned Bounding Box).
With SentinelLib, developers can now easily define hitboxes, not just AABBs, but OBBs (Oriented Bounding Box) as well that will rotate with entity movement, apply custom functionality with ease, and can actually see their entities attack hitboxes.
Why fight a boring zombie, when you can fight a Sentinel.
NOTE
This mod is still very much in the beta stage, some functionalities to be implemented soon:
- Dynamic Rotational Sentinel Boxes
- Dynamic Scaling Sentinel Boxes
- Geckolib/Azurelib compatibility (GeoBone based Sentinel Boxes)
- Edition: Minecraft Java
- File type: .jar
- Minecraft versions listed: 1.21.1, 1.20.1
- How to install: Install the matching mod loader (Forge, Fabric or NeoForge) for your Minecraft version. → Download the .jar. → Put it in the .minecraft/mods folder and launch that loader profile.
- Where to get it: Opens on CurseForge — not every file is mirrored on our own servers.
Install steps are the general flow for this file type — How to install Minecraft Java mods & modpacks walks through it step by step.
- Ships as sentinellib-1.1.2.jar — drop this file into the mods folder
- Download size: 72 KB
- Download link checked 18 Oct 2026 — working
These come from our own check of the pack file, not from the source page.