Improved Physics
Makes entity movement physics somewhat more realistic.
About this Mod
In vanilla minecraft, living entities such as the player lose all but 15% of their velocity every second. This is vastly unrealistic, and hence this mod. It is still indev and is not a realistic physics engine, but this mod fixes things such as the removal of 9% of living entity velocity every tick.
Blocks(still indev for testing):
improved_physics:slime_layer
A bouncy layer that can be put on walls. Bouncing is still slightly buggy, as well as the model and placement.
improved_physics:slime_block
A bouncy block with 0 friction. For the floor because slime_layer doesn't quite work with down face enabled.
Neither of these blocks do anything on Valkyrien skies ships, but neither do vanilla slime blocks, so it makes sense that extra work would be required to make it function.
Arrows do not bounce yet because of how they work. Fixing that is planned.
I am considering implementing the faulty speed cap from Portal and Half-Life so that people can enjoy the chaos of Accelerated Backwards Hopping to get insane speeds.
Available Versions
How to Install Improved Physics 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 (1.20.1).
Install Mod
Open the mod browser in the dashboard and search for "Improved Physics". Click "Install" – done! Alternatively, upload the .jar via SFTP to the /mods folder.
Compatibility
Mod Loaders
Minecraft Versions
1.20.1
Server-side
✓ RequiredRecommended RAM
4 GB(min. 3 GB)Frequently Asked Questions
Improved Physics 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 (1.20.1). You can switch loaders with one click in the panel.
Is Improved Physics compatible with fabric?
Improved Physics officially supports fabric for Minecraft 1.20.1. The Mado dashboard automatically detects incompatible loader combinations.
Server lagging with Improved Physics – how to optimize performance?
Recommended RAM: 4 GB (per 8 players). Use /spark profiler to check if Improved Physics 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.
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Rent Modded Server
Install Improved Physics with just one click on your server.