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Authentic BetaMinecraft modpack for 1.21.1

As close as possible to (vanilla!) Beta 1.7.3 in modern-ish versions.

newest supported 1.21.1AdventureOptimizationLightweight
Latest version
1.2_01-1.20.1
Minecraft
1.20.1 to 1.21.1
Java
Java 21+
Loader
Fabric
Licence
GPL-3.0-or-later
Downloads
2.3k
Updated
1 mo ago
Available on
Modrinth
Space NodeOur hosting

Host Authentic Beta servers

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

  • 1.21.1
  • Fabric
  • One click modpack install
  • Dependencies handled
  • Tuned startup flags
  • 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 Authentic Beta declares support for, newest first, with the Java runtime that version needs.

Other modpacks
MinecraftThroughJavaEvidenceReleased
1.21.1Fabric21+declared8 Aug 2024
1.20.1Fabric17+declared12 Jun 2023

Download

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

All 34 releases
1.2_01-1.20.1release25 May 2026

Authentic Beta 1.2_01 1.20.1.mrpack · 2.3 MB · for 1.20.1

Download latest
aa53cea63780…
Older versions24
  • 1.2_03-1.21.125 May 20261.21.10.4 MB31 downloads35f90a5710f1…Get
  • SERVER-1.2_01-1.20.125 May 20261.20.12.1 MB19 downloadse9f32a8f27d7…Get
  • SERVER-1.2_01-1.21.125 May 20261.21.10.4 MB11 downloadsbfc238154f51…Get
  • 1.2_02-1.21.116 May 20261.21.10.4 MB41 downloads3c821b4c278b…Get
  • 1.2_01-1.21.116 May 20261.21.10.4 MB9 downloads0ff8b6be61ab…Get
  • 1.2-1.20.116 May 20261.20.12.1 MB23 downloads3dbc48eae7e5…Get
  • 1.2-1.21.116 May 20261.21.10.4 MB13 downloadsbf4421e26cb4…Get
  • SERVER-1.2-1.20.116 May 20261.20.12.1 MB8 downloads0c36bfe2cdd6…Get
  • SERVER-1.2-1.21.116 May 20261.21.10.4 MB14 downloads2e8bfa66e450…Get
  • 1.1.6-1.20.119 Apr 20261.20.12.2 MB116 downloads4606cb99efba…Get
  • 1.1.6-1.21.119 Apr 20261.21.10.5 MB54 downloadsfd3b8b21b17c…Get
  • SERVER-1.1.1-1.20.119 Apr 20261.20.12.1 MB10 downloads400d87c67bd6…Get
  • SERVER-1.1.2-1.21.119 Apr 20261.21.10.4 MB9 downloadsbb1f4fa78e8c…Get
  • 1.1.5-1.21.118 Apr 20261.21.10.5 MB18 downloadse99ca35c1b00…Get
  • SERVER-1.1.1-1.21.118 Apr 20261.21.10.4 MB7 downloads17c882330b4b…Get
  • 1.1.5-1.20.115 Apr 20261.20.12.2 MB34 downloadse1ab07866223…Get
  • 1.1.4-1.21.115 Apr 20261.21.10.5 MB18 downloadsf8113f25740b…Get
  • SERVER-1.1.0-1.20.115 Apr 20261.20.12.1 MB11 downloadsb3d123d57a73…Get
  • SERVER-1.1.0-1.21.115 Apr 20261.21.10.4 MB11 downloads9c3dd450641f…Get
  • 1.1.4-1.20.18 Apr 20261.20.12.2 MB31 downloads5e94be858de3…Get
  • 1.1.3-1.21.18 Apr 20261.21.10.5 MB12 downloadsf4593b2a70a6…Get
  • 1.1.3-1.20.17 Apr 20261.20.12.2 MB8 downloads9975bdbd00f2…Get
  • 1.1.2-1.21.17 Apr 20261.21.10.5 MB6 downloads8a375ecb70fc…Get
  • 1.1.1-1.21.16 Apr 20261.21.10.5 MB14 downloads70216051f7ef…Get

Frequently asked

Does Authentic Beta work on Minecraft 1.21.1?

Yes. 1.21.1 is the newest Minecraft version Authentic Beta 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 Authentic Beta support?

Everything the author has declared, from 1.20.1 up to 1.21.1. The full list is in the table above, with the Java runtime each version needs next to it.

Which platform or loader does Authentic Beta support?

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

Which Java version do I need for Authentic Beta?

On the newest Minecraft version it supports, Java 21 or newer. The requirement comes from the Minecraft version you run rather than from the modpack itself, so on an older supported Minecraft the answer is that version's Java, not this one.

What licence is Authentic Beta under?

GPL-3.0-or-later, 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 Authentic Beta?

Use a launcher that imports packs, such as Prism Launcher, the Modrinth App or the CurseForge app, and open the pack file with it. The launcher installs the right loader and mods for you; installing a pack's mods by hand is the error-prone way.

Where do I download Authentic Beta safely?

Start with the author's page on Modrinth, which is where the data here is synced from. MCReference does not host or repackage files. The download link goes to the source recorded for that release; verify the publisher, filename and checksum before running it.

Works on the same versions

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

Re-ConsoleA continued Legacy Console Edition experience, expanded upon with modern Java Edition content and QoL! (An Official Legacy4J Project)MAX FPS: Optimized🚀 MAX FPS WITHOUT UNNECESSARY MODS! Only 16 optimization mods - NOTHING EXTRA! ✅ ALL MAJOR VERSIONS ⚡ INSTALLS ON ANY LAUNCHER! (Guide below)PacktrixPre-packed Official Modpack containing Patrix Resource Pack for easy install using Fabric/Quilt.Simply Optimized ReloadedAn unofficial port of Simply Optimized built to support every major mod loader and stay current with the newest versions of Minecraft.ElixirA well-researched performance & optimization modpack to make the game run smoother! With shader & Fresh Animations support. 26.3 ✔OptimumFuse[1.21.5] [Fabric📜] An open-source modpack that improves the game's performance and visuals, inspired by OptiFine, while staying true to the vanilla Minecraft experience.

Last checked 23 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.

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