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modpack

Gun IsekaiMinecraft modpack for 1.21.1

A ModPack focused on making the most Vanilla-Friendly Gun experience... (yes, "Guns" and "Vanilla-Friendly" in the same sentence)

client and servernewest supported 1.21.1AdventureOptimizationChallengingCombat
Latest version
3.1
Minecraft
1.21.1
Java
Java 21+
Loader
Fabric
Licence
LicenseRef-All-Rights-Reserved
Downloads
534
Updated
3 mo ago
Available on
Modrinth
Space NodeOur hosting

Host Gun Isekai servers

One click and Gun Isekai 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 Gun Isekai declares support for, newest first, with the Java runtime that version needs.

Other modpacks
MinecraftThroughJavaEvidenceReleased
1.21.1Fabric21+declared8 Aug 2024

Download

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

3.1release1 Jul 2026

Gun Isekai.mrpack · 430.6 MB · for 1.21.1

Download latest
054edeb75292…
Older versions4
  • 3.026 Mar 20261.21.1197.0 MB230 downloads28823e2befbd…Get
  • 2.5.013 Mar 20261.21.1187.3 MB85 downloads2f55283672a2…Get
  • 2.0.013 Mar 20261.21.1146.8 MB13 downloads24dea36a4b9d…Get
  • 1.0.09 Feb 20261.21.195.5 MB79 downloads1f1414f85581…Get

Frequently asked

Does Gun Isekai work on Minecraft 1.21.1?

Yes. 1.21.1 is the newest Minecraft version Gun Isekai declares support for, and the claim comes from the author's own release metadata rather than from a compatibility list somebody maintains by hand.

Do I need to install Gun Isekai 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 platform or loader does Gun Isekai 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 Gun Isekai?

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 Gun Isekai 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 Gun Isekai?

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 Gun Isekai 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 2 mo 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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