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BetterPrisonsMinecraft mod for 1.21.11

A client side mod for usage on CosmicPrisons intended to replace CosmicClient.

client onlynewest supported 1.21.11UtilityAdventureEconomyEquipment
Latest version
1.3.8
Minecraft
1.21.8 to 1.21.11
Java
Java 21+
Loader
Fabric
Licence
LicenseRef-All-Rights-Reserved
Downloads
1.5k
Updated
1 mo ago
Available on
Modrinth
Space NodePartner

Host BetterPrisons servers

One click and BetterPrisons is installed with the right loader, on hardware built for it.

  • 1.21.11
  • Fabric
  • One click mod install
  • Loader matched for you
  • Ryzen CPUs
  • NVMe SSD
Deploy a serverFrom €0.90 per GB

Screenshots

Click a screenshot to open it. Screenshots are served from the author’s own host and belong to them.

Minecraft versions

Every version BetterPrisons declares support for, newest first, with the Java runtime that version needs.

Other mods
MinecraftThroughJavaEvidenceReleased
1.21.11Fabric21+declared9 Dec 2025
1.21.8Fabric21+declared17 Jul 2025

Download

From BetterPrisons’s own host. Nothing is re-hosted here.

1.3.8release22 Jun 2026

betterprisons-1.3.8.jar · 2.0 MB · for 1.21.11

Download latest
0fecc627297d…
Older versions14
  • 1.3.722 Jun 20261.21.112.0 MB7 downloads8a5f07c2c409…Get
  • 1.3.618 May 20261.21.111.6 MB227 downloadscaf4b4cc46fc…Get
  • 1.3.515 May 20261.21.111.6 MB56 downloadsbbfb0d90ddd9…Get
  • 1.3.411 Apr 20261.21.111.6 MB249 downloadsd23858425db9…Get
  • 1.3.310 Apr 20261.21.111.6 MB53 downloads4ae4ea64d13c…Get
  • 1.3.227 Mar 20261.21.111.5 MB158 downloads31207b3de681…Get
  • 1.3.120 Mar 20261.21.111.5 MB163 downloads453f321cf700…Get
  • 1.3.025 Feb 20261.21.111.5 MB135 downloads918952a2725c…Get
  • 1.2.125 Feb 20261.21.81.5 MB45 downloads55c2a945e429…Get
  • 1.2.025 Jan 20261.21.81.4 MB30 downloadsa6ae2ee3f70e…Get
  • 1.1.023 Jan 20261.21.81.4 MB13 downloads3bfaa6ee0153…Get
  • 1.0.1113 Jan 20261.21.81.4 MB14 downloads3f2a9bdf5094…Get
  • 1.0.912 Jan 20261.21.80.1 MB9 downloadsccb6816c5894…Get
  • 1.0.710 Jan 20261.21.80.1 MB12 downloadsebb4a9a1884b…Get

Frequently asked

Does BetterPrisons work on Minecraft 1.21.11?

Yes. 1.21.11 is the newest Minecraft version BetterPrisons declares support for, and the claim comes from the author's own release metadata rather than from a compatibility list somebody maintains by hand.

Which Minecraft versions does BetterPrisons support?

Everything the author has declared, from 1.21.8 up to 1.21.11. The full list is in the table above, with the Java runtime each version needs next to it.

Do I need to install BetterPrisons on the client or the server?

The client only. There is nothing to install on the server, so it works on any server you can already join.

Which loader does BetterPrisons need?

Fabric. A build for one loader will not load on another, so this is the first thing to check before the Minecraft version.

Which Java version do I need for BetterPrisons?

Java 21 or newer, because that is what the newest Minecraft release it supports requires. The requirement comes from the game rather than from the mod itself.

What licence is BetterPrisons under?

LicenseRef-All-Rights-Reserved, as stated by the author on the platform we synced it from. Check the project's own page before redistributing or bundling it.

How do I install BetterPrisons?

Install the matching loader first, then put the downloaded file in your mods folder and start the game. The loader, the mod and Minecraft all have to be on the same version, which is the usual reason a mod does not appear in game.

Where do I download BetterPrisons safely?

From the author's own page on Modrinth, which is where the data here is synced from. MCReference never mirrors, re-hosts or repackages a file: every download button points at the original source, so you get exactly what the author published.

Works on the same versions

Ordered by how much of the recent Minecraft version coverage overlaps, not by popularity.

Entity CullingUsing async path-tracing to hide Block-/Entities that are not visibleFerriteCoreMemory usage optimizationsImmediatelyFastSpeed up immediate mode rendering in MinecraftYetAnotherConfigLib (YACL)A builder-based configuration library for Minecraft!Xaero's MinimapDisplays a map of the nearby world terrain, players, mobs, entities in the corner of your screen. Lets you create waypoints which help you find the locations you've marked.[ETF] Entity Texture FeaturesEmissive, Random & Custom texture support for entities in resourcepacks just like Optifine but for Fabric

Last checked 6 d ago against Modrinth. We do not host files and we do not republish descriptions; every download link points at the author’s own release.

Is this information wrong or missing something? .