ModsJava
Water Physics Overhaul
Makes fluid physics more realistic
I don't know my version or loader
Open the Minecraft launcher and look at the profile you play on — it names both, like fabric-loader-1.21.4. The version also shows in the bottom-right corner of the game's main menu.
No loader in the profile name? Then it's plain Minecraft, and these mods won't run — you need Fabric or NeoForge installed first.
This mod makes physics to be a thing!
Water and other fluids are finite now!
Features:
- Realistic fluid flow
- Placed blocks no longer destroy water
- Bottle now consumes water
- Pistons displace fluid
- Farmland now consumes water (configurable)
- All hollow blocks can be filled with water - no more strange air pockets in doors! (configurable)
- Dripstone no more fills cauldrons (configurable)
- Water evaporates on contact with lava (configurable)
Big 2.0 update just arrived for Fabric 1.21.11
- Better performance
- Stability
- New features
- flexible configuration



For the future: Block physics will be added to this mod.
Both fluid and block parts will be able to be independently switched on/off
Verified by MCModsHub
- Ships as physex-0.0.1-A.jar — drop this file into the mods folder
- Download size: 136 KB
- Download link checked 13 Aug 2026 — working
These come from our own check of the pack file, not from the source page.