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Retro64Minecraft mod for 1.21.1

This mod lets you play your favorite 1996 platformer in a modern Minecraft world.

newest supported release 1.21.1Mc Miscellaneous
Latest version
retro64-1.2.5-neoforge-1.21.1.jar
Loaders
NeoForge, Forge
Licence
not stated
Downloads
89.6k
Updated
1 mo ago
Available on
CurseForge

Minecraft versions

Every version Retro64 declares support for, newest first, with the Java runtime that version needs.

Other mods
MinecraftThroughJavaEvidenceReleased
1.21.1NeoForge, Forge21+declared8 Aug 2024
1.20.1NeoForge, Forge17+declared12 Jun 2023
1.19.3NeoForge, Forge17+declared7 Dec 2022
1.18.2NeoForge, Forge17+declared28 Feb 2022
1.18.1NeoForge, Forge17+declared10 Dec 2021

Download

From Retro64’s own host. Nothing is re-hosted here.

Most recently published release

retro64-1.2.5-neoforge-1.21.1.jarrelease27 Sept 2026

retro64-1.2.5-neoforge-1.21.1.jar · 3.0 MB · for 1.21.1 · NeoForge

Download this release
0f675035431b…
Older versions10
  • retro64-1.2.4-forge-1.20.1.jar29 Jun 20251.20.13.0 MBe7e11f251c73…Get
  • retro64-1.2.4-neoforge-1.21.1.jar29 Jun 20251.21.13.0 MBf07ac318cc33…Get
  • retro64-1.2.2-neoforge-1.21.1.jar11 Jan 20251.21.13.0 MB1143df80d8dc…Get
  • retro64-1.2.2-forge-1.20.1.jar11 Jan 20251.20.13.0 MB6ed0c6204904…Get
  • 1.21.1-1.2.031 Dec 20241.21.13.0 MB3a2292f94ce0…Get
  • 1.19.3-1.0.1319 Mar 20231.19.33.0 MB4ddebd90e91c…Get
  • 1.18.2-1.0.1319 Mar 20231.18.23.0 MB2a4e44d0b1e8…Get
  • Retro64 1.0.12 for 1.19.35 Mar 20231.19.31.6 MB695881be48bb…Get
  • Retro64 1.0.12 for 1.18.25 Mar 20231.18.21.6 MBece89e448da9…Get
  • 1.0.1023 Aug 20221.18.2, 1.18.11.6 MBbf7466da7d59…Get

Frequently asked

Does Retro64 work on Minecraft 1.21.1?

Yes. 1.21.1 is the newest Minecraft version Retro64 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 Retro64 support?

Everything the author has declared, from 1.18.1 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 Retro64 support?

NeoForge, Forge. 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 Retro64?

Among the supported Minecraft releases above, the highest recorded requirement is Java 21 or newer. Use the requirement for the exact Minecraft version you run; previews and snapshots may differ.

How do I install Retro64?

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 Retro64 safely?

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

Works on the same versions

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

Details from CurseForge, where the author last updated it on 27 Sept 2026. We do not host files or republish descriptions. Available download links point to the author’s own release.

Is this information wrong or missing something? .