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modpack

1:1 BetaMinecraft modpack for 1.21.1

A 1:1 recreation of version b1.7.3 in modern Minecraft.

client and servernewest supported 1.21.1AdventureOptimizationChallengingCombat
Latest version
2.1.3
Minecraft
1.19.2 to 1.21.1
Java
Java 21+
Loader
Fabric
Licence
MIT
Downloads
8.7k
Updated
20 mo ago
Available on
Modrinth
Space NodePartner

Host 1:1 Beta servers

One click and 1:1 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 1:1 Beta declares support for, newest first, with the Java runtime that version needs.

Other modpacks
MinecraftThroughJavaEvidenceReleased
1.21.1Fabric21+declared8 Aug 2024
1.20.4Fabric17+declared7 Dec 2023
1.19.2Fabric17+declared5 Aug 2022

Download

From 1:1 Beta’s own host. Nothing is re-hosted here.

2.1.3release23 Nov 2024

1-1 Beta 2.1.3.mrpack · 9.3 MB · for 1.21.1

Download latest
0dd732e261c5…
Older versions10
  • 2.1.223 Nov 20241.21.19.3 MB104 downloads0cf6dc488b9d…Get
  • 2.1.122 Nov 20241.21.17.7 MB113 downloads0ad9c2f70e0e…Get
  • 2.122 Nov 20241.21.17.7 MB115 downloadsc22e258debcd…Get
  • 2.0.425 Jul 20241.20.49.1 MB917 downloadsa23421f51c47…Get
  • 2.0.325 Jul 20241.20.49.1 MB129 downloadsc69103fbb2fb…Get
  • 2.0.225 Jul 20241.20.48.8 MB119 downloadsd7fca704c105…Get
  • 2.0.124 Jul 20241.20.48.7 MB138 downloads5c57eaa46df5…Get
  • 2.024 Jul 20241.20.48.7 MB130 downloadse3a74936a374…Get
  • 1.15 Apr 20231.19.28.8 MB2.4k downloadsb50c799abe89…Get
  • 1.025 Dec 20221.19.28.2 MB524 downloadsa64f1363dfb3…Get

Frequently asked

Does 1:1 Beta work on Minecraft 1.21.1?

Yes. 1.21.1 is the newest Minecraft version 1:1 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 1:1 Beta support?

Everything the author has declared, from 1.19.2 up to 1.21.1. The full list is in the table above, with the Java runtime each version needs next to it.

Do I need to install 1:1 Beta on the client or the server?

Both. Every player needs it installed and so does the server, so anyone joining without it will be refused.

Which loader does 1:1 Beta 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 1:1 Beta?

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 modpack itself.

What licence is 1:1 Beta under?

MIT, 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 1:1 Beta?

Install the matching loader first, then put the downloaded file in your mods folder and start the game. The loader, the modpack 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 1:1 Beta 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.

MAX FPS: Optimized🚀 MAX FPS WITHOUT UNNECESSARY MODS! Only 16 optimization mods - NOTHING EXTRA! ✅ ALL MAJOR VERSIONS ⚡ INSTALLS ON ANY LAUNCHER! (Guide below)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 Snapshot 5 ✔Just Enough OptimizationJust Enough Optimization - Focused on low memory usage and higher avarege fps. Made for low-end pc so everyone can run MinecraftUltimately OptimizedEnjoy the plain old vanilla Minecraft, but with performance and FPS improvements.OptimalsationThe highest performing 1.21 modpack

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.

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