NNP Fluidlogging
NNP Fluidlogging lets flowing fluids sit inside blocks such as stairs and slabs, so lava or water can be poured into stone stairs in a NeoForge world.
What it does
Vanilla Minecraft allows water to be logged into a limited set of blocks, and this mod extends that system to other blocks and fluids. The author describes the approach as a basic one that removes the vanilla fluidlogging limits, which lets map makers and regular players use modded fluids to build channels and roads. Compatibility is broad, since the mod works with most fluids from the start, and a configurable blacklist lets server owners exclude blocks or fluids that cause trouble.
The mod is published for NeoForge only, with files for 1.21.1, 26.1, 26.1.1, 26.1.2 and 26.2. Every player and the server need a copy of the mod. It is released as All rights reserved and is not open source, though public links to its source code and issue tracker exist. The author states the release is feature complete for early use, and contributions in the form of performance and bug fixes are invited through the repository.
Key features
Fluid logging into blocks
Flowing fluids can be placed inside blocks with stair, slab and similar shapes, not only the vanilla logging targets.
Compatibility with modded fluids
Most fluids from other mods work out of the box, which supports custom channels and road designs.
Configurable blacklist
A blacklist in the config file excludes blocks or fluids that should not be logged.
Geometry handling through DataMap
Flowing fluids respect the shape of loggable blocks, and a block's level limits are set through a DataMap that modders can extend.
Gallery
Compatibility
Latest build for each game version and loader.
Only full game releases are shown. This mod publishes no snapshot builds.
Use cases
Who it’s for: Map makers and builders who want fluid placement beyond vanilla rules. Server owners who run the mod should check the blacklist before use, since the mod relies on many mixins and may conflict with other mods.
How it compares
Void Water is a NeoForge mod released under the MIT License and open source, with files for 1.21.1 – 1.21.11, and it is required on the client while the server may skip it. PmWeather Flowing Fluids Compat is a server-side only NeoForge mod released under the GNU Lesser General Public License v3.0 only, open source and published for 1.21.1 alone, so players join without installing it.
| Mod | Loaders | Game versions | Environment | Updated |
|---|---|---|---|---|
| NNP Fluidlogging | NeoForge | 1.21.1 – 26.2 | Client and server | 2026-08-01 |
| Void Water | NeoForge | 1.21.1 – 1.21.11 | Client required, server optional | 2026-05-15 |
| PmWeather Flowing Fluids Compat | NeoForge | 1.21.1 | Server-side only | 2026-08-02 |
Questions
Does NNP Fluidlogging need to be installed on the server?
Which loader does NNP Fluidlogging support?
Can the mod cause conflicts with other mods?
In the catalog
NNP Fluidlogging is one of 12,078 Decoration mods on ModsFinder, and one of 5,201 Decoration mods for NeoForge. 13,894 mods support Minecraft 26.2.
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What the author says
You know how you can have a water block with other things (stairs, slabs, etc.) in it? Now you can do that with any fluid. This mod is now feature complete. Have you ever wondered why you can't pour lava into some stone stairs? Or use that nice looking modded fluid to add a pretty channel to your road? Well, I won't…
Official listing
- Modrinth page
- modrinth.com/mod/nnp-fluidlogging
- Owner
- No_Name_Provided
- Published
- 2026-04-26
- Updated on Modrinth
- 2026-08-01
- Facts verified
- 2026-10-15