
Velthoric
Adds high-performance physics to Minecraft
Screenshots





About this Mod
Velthoric
Redefining physics in the world of Minecraft.
👋 Welcome to Velthoric
Velthoric is a project dedicated to bringing advanced, high-performance physics to Minecraft.
Important Note: Right now, this mod is a Proof of Concept. This means we are currently testing what’s possible and building the foundation. It is a work in progress, but it won't stay this way forever. We have big plans to turn this into a fully-fledged, stable physics engine for the community.
💥 What makes this mod special?
We aren't just adding simple animations. Velthoric integrates the professional Jolt Physics engine (via JoltJNI) directly into Minecraft. This allows for interactions that feel heavy, realistic, and incredibly smooth.
Current Features:
- True Rigid and Soft Bodies: Interact with solid objects, or play with deformable things like cloth and ropes.
- Working Vehicles: Drive cars and motorcycles that feature actual suspension and wheel physics.
- Realistic Ragdolls: Watch living entities react to the world with physical skeletal systems.
- Buoyancy: Objects actually float in water and lava based on their weight and shape.
- World Interaction: Convert standard blocks into dynamic physics objects that fall and collide.
- Optimized Performance: Built using a "Structure of Arrays" (SoA) architecture to handle thousands of objects without killing your frame rate.
- Persistence: Everything stays where it is. Physics bodies are saved with your world and synced perfectly between the server and the client.
🎮 How to play with it
You can test the engine right now using these commands:
/vxsummon: Spawn objects like boxes, ropes, or marbles.- Try this to test a vehicle:
/vxsummon velthoric:car ~ ~ ~(Use F3 + B to see where to sit).
- Try this to test a vehicle:
/vxtest: A quick way to spawn debug setups like chain grids or soft bodies./vxkill: Use this to clean up. You can target specific types of objects or everything nearby.- Example:
/vxkill @x[type=velthoric:box,limit=5,sort=nearest]
- Example:
🔧 Tools included
We’ve added several tools to help you manipulate the world:
- PhysicsGun: Grab, move, and throw objects around.
- Magnetizer: Push or pull things with magnetic force.
- Launchers: Special tools to shoot boxes or ragdolls into the air.
- ChainCreator: Link objects together or anchor them to the ground.
Hint: You can press TAB while holding any tool to open a menu and tweak settings like strength and range.
💻 Supported Platforms
Because Velthoric relies on native code for the physics engine, it currently supports:
- Windows (x86_64)
- Linux (x86_64 and Arm64)
- MacOS (x86_64 and Arm64)
Warning: Any other platforms, such as 32-bit systems or Android, are not supported and will result in a crash.
⚠️ Feedback and Bug Reports
If you find a bug or a compatibility issue, please let us know on the issue tracker:
🙏 Acknowledgments
This project wouldn't be possible without these amazing resources:
- JoltJNI: The JNI bindings for Jolt Physics.
- Jolt Physics: The powerful engine behind it all.
Available Versions
How to Install Velthoric on Your Server
Order Server
Order a Minecraft Java server with at least 3 GB RAM (4 GB recommended).
Set fabric Loader
In the panel under "Egg", select the fabric loader and matching Minecraft version (1.21.1).
Install Mod
Open the mod browser in the dashboard and search for "Velthoric". Click "Install" – done! Alternatively, upload the .jar via SFTP to the /mods folder.
Compatibility
Mod Loaders
Minecraft Versions
1.21.1, 1.20.1
Server-side
✓ RequiredRecommended RAM
4 GB(min. 3 GB)Frequently Asked Questions
Velthoric 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 (1.21.1). You can switch loaders with one click in the panel.
Is Velthoric compatible with fabric and forge and neoforge and quilt?
Velthoric officially supports fabric, forge, neoforge, quilt for Minecraft 1.21.1, 1.20.1. Note: Forge and Fabric mods are NOT cross-compatible – pick one loader and stick with it. The Mado dashboard automatically detects incompatible loader combinations.
Server lagging with Velthoric – how to optimize performance?
Recommended RAM: 4 GB (per 8 players). Use /spark profiler to check if Velthoric 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.
Similar Mods
Rent Modded Server
Install Velthoric with just one click on your server.



