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Project AlphaMinecraft mod for 1.21.4

A Sci-Fi Mod about travelling back to Alpha Minecraft

client and servernewest supported 1.21.4TechnologyAdventureMobsMagic
Latest version
1.6
Minecraft
1.16.5 to 1.21.4
Java
Java 21+
Loaders
NeoForge, Forge
Licence
LicenseRef-All-Rights-Reserved
Downloads
10.2k
Updated
2 mo ago
Available on
Modrinth
Space NodeOur hosting

Host Project Alpha servers

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

  • 1.21.4
  • NeoForge
  • Forge
  • 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 Project Alpha declares support for, newest first, with the Java runtime that version needs.

Other mods
MinecraftThroughJavaEvidenceReleased
1.21.4NeoForge, Forge21+declared3 Dec 2024
1.21.1Forge, NeoForge21+declared8 Aug 2024
1.20.1NeoForge, Forge17+declared12 Jun 2023
1.19.4NeoForge, Forge17+declared14 Mar 2023
1.16.5Forge, NeoForge8+declared14 Jan 2021

Download

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

1.6release28 Jul 2026

project_alpha-v1.0-neoforge-1.21.4.jar · 0.9 MB · for 1.21.1

Download latest
13fbf5ccf224…
Older versions21
  • 1.5.112 Jul 20261.21.18.0 MB151 downloadsf1791fd2ff94…Get
  • 1.54 Jul 20261.20.18.1 MB72 downloadsa5ae17116886…Get
  • 1.410 May 20261.21.14.5 MB654 downloads52ca339820da…Get
  • 1.325 Apr 20261.21.14.5 MB513 downloads5f35ec5b669a…Get
  • 1.2.412 Sept 20251.20.14.0 MB1.2k downloads8d2d0aa49015…Get
  • 1.2.33 Sept 20251.20.11.2 MB288 downloadscb4dc12c73bd…Get
  • 1.2.225 Aug 20251.21.41.2 MB120 downloads7da9559d5c32…Get
  • 1.2.118 Aug 20251.21.41.2 MB121 downloads9d75bb79d138…Get
  • 1.217 Aug 20251.20.10.8 MB45 downloads2ec1d4c5d880…Get
  • 1.125 Jun 20251.21.40.9 MB354 downloads8f483d9f27d9…Get
  • 1.018 Jun 20251.21.40.9 MB90 downloads13fbf5ccf224…Get
  • 0.2124 Apr 20251.20.10.6 MB1.2k downloads391258f3a006…Get
  • 0.20.122 Jul 20241.20.10.9 MB283 downloads3a23a548ed7e…Get
  • 0.206 Jul 20241.16.51.2 MB136 downloads9a7f72763c74…Get
  • 0.19.22 Jun 20241.16.50.8 MB99 downloads90fcd5b4ed79…Get
  • 0.19.112 May 20241.16.50.8 MB73 downloads34ec9668430a…Get
  • 0.1912 Apr 20241.16.50.7 MB116 downloadse51e269d1e48…Get
  • 0.1813 Feb 20241.20.10.5 MB377 downloadsa38a073f62a1…Get
  • 0.17.413 Nov 20231.20.10.5 MB212 downloads1833f375fbaf…Get
  • 0.17.312 Sept 20231.20.10.6 MB112 downloads02c0679fc616…Get
  • 0.17.212 Sept 20231.19.40.6 MB207 downloads0254089c8ee1…Get

Frequently asked

Does Project Alpha work on Minecraft 1.21.4?

Yes. 1.21.4 is the newest Minecraft version Project Alpha 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 Project Alpha support?

Everything the author has declared, from 1.16.5 up to 1.21.4. The full list is in the table above, with the Java runtime each version needs next to it.

Do I need to install Project Alpha 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 Project Alpha 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 Project Alpha?

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

What licence is Project Alpha 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 Project Alpha?

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 Project Alpha 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.

Armor HiderHide or adjust the transparency of armor, glint, and offhand items - with full multiplayer sync. No dependencies required.GeckoLibA 3D animation library for entities, blocks, items, armor, and more!Cloth Config API (Fabric/Forge/NeoForge)Config Screen API for MinecraftJourneyMapReal-time map used for mapping in-game or your browser as you explore.Architectury APIAn intermediary api aimed to ease developing multiplatform mods.Jade 🔍Shows information about what you are looking at. (Hwyla/WAILA fork for Minecraft 1.16+)

Details from Modrinth, where the author last updated it on 28 Jul 2026. 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? .