FloodWorld

FloodWorld

Replaces all air with water during chunk generation.

by
93 Downloads
fabricadventuregame-mechanicsworldgen
Rent Server with this Mod

Screenshots

Plains Village

About this Mod

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Features

FloodWorld is a Fabric mod that replaces all air with water during chunk generation.

  • Water is by default placed directly during chunk generation, and only then. Air created after a chunk is generated is preserved even if the chunk is reloaded.
  • Fully configurable (ModMenu + Cloth Config)
  • Cave flooding by default
  • Server compatible, Works on multiplayer servers. Clients do not need the mod installed.

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Configuration

Requires ModMenu and Cloth Config for in-game configuration

Replace Air - Fills regular air blocks with water

Replace Cave Air -Fills cave air blocks with water

Max Water Height - The Y level below which air becomes water

Native Flooding - Places water during generation (fast) vs post-processing tick queue (compatible)

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Dependencies

Required:

  • Fabric Loader
  • Fabric API

Optional (for config screen):

  • ModMenu
  • Cloth Config

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compatibility

Minecraft 1.21.x (Fabric)
Should work on fabric multiplayer servers,
server-side only, no client installation required

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Notes

Settings only apply to newly generated chunks. Existing chunks will not be retroactively flooded or un-flooded.
On first world creation there may be a brief loading screen delay while Minecraft locates a valid spawn point above the waterline.
Changing the Native Flooding setting requires a world restart to take effect on new chunks.

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RyzenUp — MIT Licensed

Available Versions

FloodWorld Fabric 1.0.0release
MC 1.21, 1.21.1, 1.21.2, 1.21.3, 1.21.4, 1.21.5, 1.21.6, 1.21.7, 1.21.8, 1.21.9, 1.21.10, 1.21.11fabric
March 17, 2026

How to Install FloodWorld on Your Server

1

Order Server

Order a Minecraft Java server with at least 4 GB RAM (6 GB recommended).

2

Set fabric Loader

In the panel under "Egg", select the fabric loader and matching Minecraft version (1.21.11).

3

Install Mod

Open the mod browser in the dashboard and search for "FloodWorld". Click "Install" – done! Alternatively, upload the .jar via SFTP to the /mods folder.

Compatibility

Mod Loaders

fabric

Minecraft Versions

1.21.11, 1.21.10, 1.21.9 (+9 more)

Server-side

Required

Recommended RAM

6 GB(min. 4 GB)

Frequently Asked Questions

FloodWorld 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 4 GB RAM is allocated and the loader matches the mod version (1.21.11). You can switch loaders with one click in the panel.

Is FloodWorld compatible with fabric?

FloodWorld officially supports fabric for Minecraft 1.21.11, 1.21.10, 1.21.9. The Mado dashboard automatically detects incompatible loader combinations.

Server lagging with FloodWorld – how to optimize performance?

Recommended RAM: 6 GB (per 5 players). Use /spark profiler to check if FloodWorld 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.

Rent Modded Server

Install FloodWorld with just one click on your server.

Recommended RAM
6 GBab €12/mo
Min. 4 GB | +1 GB pro 5 Spieler
Create Server Now
1-Click Mod Install
NVMe SSD Storage
DDoS Protection included

Details

License
MIT License
Server-side
Required

Supported Versions

1.21.111.21.101.21.91.21.81.21.71.21.61.21.51.21.41.21.31.21.2+2 more