Large Rivers in Large Biomes

Makes rivers large in Large Biomes. (Alpha)

389 Downloads

datapackfabricforgeneoforgequiltadventureworldgen

Rent Server with this Mod

Screenshots

About this Mod

This data pack changes rivers in large biomes to be larger, around 80 blocks wide.
Right now, while using the data pack, you cannot use the default world type due to Minecraft data pack limitations.

This data pack is in alpha. If you find bugs, please report them on my Discord server.

Available Versions

1.0release

MC 1.21.6, 1.21.7, 1.21.8, 1.21.9, 1.21.10, 1.21.11fabric, forge, neoforge, quilt

January 11, 2026

1.0release

MC 1.21.6, 1.21.7, 1.21.8, 1.21.9, 1.21.10, 1.21.11datapack

January 11, 2026

How to Install Large Rivers in Large Biomes on Your Server

Order Server

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

Set datapack Loader

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

Install Mod

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

Compatibility

Mod Loaders

datapackfabricforgeneoforgequilt

Minecraft Versions

1.21.11, 1.21.10, 1.21.9 (+3 more)

Server-side

✓ Required

Recommended RAM

6 GB(min. 4 GB)

Frequently Asked Questions

Large Rivers in Large Biomes server crashes on startup – what to do?

Most common cause: wrong datapack 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 Large Rivers in Large Biomes compatible with datapack and fabric and forge and neoforge and quilt?

Large Rivers in Large Biomes officially supports datapack, fabric, forge, neoforge, quilt for Minecraft 1.21.11, 1.21.10, 1.21.9. Note: Forge and Fabric mods are NOT cross-compatible – pick one loader and stick with it. The Mado dashboard automatically detects incompatible loader combinations.

Server lagging with Large Rivers in Large Biomes – how to optimize performance?

Recommended RAM: 6 GB (per 5 players). Use /spark profiler to check if Large Rivers in Large Biomes 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.