Menu

mod

BlocksAlphaMinecraft mod for 1.21.8

Expands Minecraft’s creative palette with 750+ new blocks, providing extra concrete colors, stairs, slabs, fences, walls, luxury materials, gradients, quartz variants, and more. All versions supported from 1.12.2 to 1.21.4.

client and servernewest supported 1.21.8Decoration
Latest version
1.9
Minecraft
1.12.2 to 1.21.8
Java
Java 21+
Loaders
NeoForge, Forge
Licence
LicenseRef-All-Rights-Reserved
Downloads
3.4k
Updated
7 mo ago
Available on
Modrinth
Space NodeOur hosting

Host BlocksAlpha servers

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

  • 1.21.8
  • 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 BlocksAlpha declares support for, newest first, with the Java runtime that version needs.

Other mods
MinecraftThroughJavaEvidenceReleased
1.21.8NeoForge, Forge21+declared17 Jul 2025
1.21.7NeoForge, Forge21+declared30 Jun 2025
1.21.6Forge, NeoForge21+declared17 Jun 2025
1.21.5NeoForge, Forge21+declared25 Mar 2025
1.21.4NeoForge, Forge21+declared3 Dec 2024
1.21.3NeoForge, Forge21+declared23 Oct 2024
1.21.2NeoForge, Forge21+declared22 Oct 2024
1.21.1Forge, NeoForge21+declared8 Aug 2024
1.20.1NeoForge, Forge17+declared12 Jun 2023
1.19.4NeoForge, Forge17+declared14 Mar 2023
1.19.2Forge, NeoForge17+declared5 Aug 2022
1.18.2Forge, NeoForge17+declared28 Feb 2022
1.16.5NeoForge, Forge8+declared14 Jan 2021
1.15.2NeoForge, Forge8+declared17 Jan 2020
1.14.4Forge, NeoForge8+declared19 Jul 2019
1.12.2NeoForge, Forge8+declared18 Sept 2017

Download

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

1.9release7 Mar 2026

BlocksAlpha-V1.9-1.12.2.jar · 5.1 MB · for 1.12.2

Download latest
2aadc0120e56…
Older versions6
  • 1.812 Sept 20251.21.8, 1.21.7, 1.21.6, 1.21.5, 1.21.43.7 MB217 downloads108f41a0e2b2…Get
  • 1.730 Aug 20251.21.8, 1.21.7, 1.21.6, 1.21.5, 1.21.42.8 MB46 downloadsa8d292a680e6…Get
  • 1.627 Aug 20251.21.8, 1.21.7, 1.21.6, 1.21.5, 1.21.42.4 MB36 downloadsad68e1955e6d…Get
  • 1.515 Aug 20251.21.42.1 MB26 downloads3c6aa00313cf…Get
  • 1.414 Aug 20251.21.41.7 MB20 downloads5da5c73b9cc8…Get
  • 1.312 Aug 20251.21.41.5 MB14 downloads9f2fda9991cf…Get

Frequently asked

Does BlocksAlpha work on Minecraft 1.21.8?

Yes. 1.21.8 is the newest Minecraft version BlocksAlpha 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 BlocksAlpha support?

Everything the author has declared, from 1.12.2 up to 1.21.8. The full list is in the table above, with the Java runtime each version needs next to it.

Do I need to install BlocksAlpha 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 BlocksAlpha 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 BlocksAlpha?

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 BlocksAlpha 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 BlocksAlpha?

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 BlocksAlpha 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 7 Mar 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? .