BlocksAlpha
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.
Screenshots
About this Mod
-BlocksAlpha is a Minecraft mod that adds a huge variety of new blocks to the game, giving you more ways to build, decorate, and customize your world. From an expanded selection of colored concrete to many other creative block types, this mod is perfect for builders who want more texture, color, and design options in their creations. With more updates, we will continue adding many more blocks to help you build and decorate. It adds concretes of many colors as well as fences, slabs, walls and stairs.
Available Versions
How to Install BlocksAlpha on Your Server
Order Server
Order a Minecraft Java server with at least 3 GB RAM (4 GB recommended).
Set forge Loader
In the panel under "Egg", select the forge loader and matching Minecraft version (1.21.8).
Install Mod
Open the mod browser in the dashboard and search for "BlocksAlpha". Click "Install" – done! Alternatively, upload the .jar via SFTP to the /mods folder.
Compatibility
Mod Loaders
Minecraft Versions
1.21.8, 1.21.7, 1.21.6 (+13 more)
Server-side
✓ RequiredRecommended RAM
4 GB(min. 3 GB)Frequently Asked Questions
BlocksAlpha server crashes on startup – what to do?
Most common cause: wrong forge version or insufficient RAM. Check the server log (latest.log) for "OutOfMemoryError" or "Mixin" errors. With Mado Hosting: ensure at least 3 GB RAM is allocated and the loader matches the mod version (1.21.8). You can switch loaders with one click in the panel.
Is BlocksAlpha compatible with forge and neoforge?
BlocksAlpha officially supports forge, neoforge for Minecraft 1.21.8, 1.21.7, 1.21.6. The Mado dashboard automatically detects incompatible loader combinations.
Server lagging with BlocksAlpha – how to optimize performance?
Recommended RAM: 4 GB (per 8 players). Use /spark profiler to check if BlocksAlpha consumes the most tick time. Common fixes: reduce server view-distance to 8-10, install "performant" or "starlight" as supplementary mods on Forge. With Mado Hosting, your server runs on NVMe SSDs with dedicated CPU cores for minimal latency.
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Rent Modded Server
Install BlocksAlpha with just one click on your server.