
Fluid Interaction Tweaker
This is a CraftTweaker/GroovyScript addon that enables you to add more fluid interactions.
About this Mod

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Overview
- This is a (1.12.2 Minecraft Forge) CraftTweaker/GroovyScript addon that enables you to add more fluid interactions using the
zenscript/groovyscript. - This mod doesn't extend anything on the vanilla water and lava interaction system. Instead, the mod creates a new general system for fluid interactions.
- It can also act as a library mod for fluid interactions.
Features
Fluid Interaction
- Fluid turns into another block when it comes into contact with another fluid.
- Fluid turns into another block when it comes into contact with a block.
- A block turns into another block when it comes into contact with fluid.
- Any of the above reactions can trigger a series of events. The available events are as follows:
- Placing a block
- Explosion
- Spawning an entity
- Spawning an item
- Placing a fluid (experimental)
Fluid Behavior
- Fluids can perform a series of actions. The available actions are as follows:
- Applying potion effects
- Entity conversion
- Instant forced fire extinguishing
- Igniting nearby blocks
- Covering nearby blocks with snow
- Teleporting entities
- Breaking blocks (experimental; only supports OreDict for now)
JEI Compatibilities
- Thermal Foundation
Todo List
- Update groovy support
- Finish
bop-jei compat (maybe also fixingbop's buggy fluid interactions) - Add
abyssalcraft-jei compat - Add more conditions for interaction and behavior
- Add
abyssalcraft-like limited fluid spread mechanism - Add configurable boolean expressions for conditions
Suggestions/PRs are welcome!
Wiki
Here's the Wiki Link
Issues
Here's the Issues Link
Credits
This mod is created using GregTechCEu's Buildscripts
Dependencies
- Optional: crafttweaker
- Optional: groovyscript
- Optional: zenutils (for crt reloading purposes)
- Optional: jei (for recipes to be displayed)
- Optional: modularui (makes jei recipes look better; no longer needed since v1.4.0)
Available Versions
How to Install Fluid Interaction Tweaker on Your Server
Order Server
Order a Minecraft Java server with at least 3 GB RAM (4 GB recommended).
Set forge Loader
In the panel under "Egg", select the forge loader and matching Minecraft version (1.12.2).
Install Mod
Open the mod browser in the dashboard and search for "Fluid Interaction Tweaker". Click "Install" – done! Alternatively, upload the .jar via SFTP to the /mods folder.
Compatibility
Mod Loaders
Minecraft Versions
1.12.2
Server-side
✓ RequiredRecommended RAM
4 GB(min. 3 GB)Frequently Asked Questions
Fluid Interaction Tweaker server crashes on startup – what to do?
Most common cause: wrong forge 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 (1.12.2). You can switch loaders with one click in the panel.
Is Fluid Interaction Tweaker compatible with forge?
Fluid Interaction Tweaker officially supports forge for Minecraft 1.12.2. The Mado dashboard automatically detects incompatible loader combinations.
Server lagging with Fluid Interaction Tweaker – how to optimize performance?
Recommended RAM: 4 GB (per 8 players). Use /spark profiler to check if Fluid Interaction Tweaker 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 Fluid Interaction Tweaker with just one click on your server.