
Block4Block Mod
(Recommended Mod) Client-side mod for Block4Block adds tooltips and more!
About this Mod

Block4Block introduces a unique mechanic where you need a block to break a block, changing how you gather resources and survive.
Here's what sets it apart:
- Unique Resource Gathering: Breaking blocks now costs a block.
- Land Claims: Players use lecterns and books to establish land claims.
- Claims can trade hands. Protect them.
- Vanilla Integration: It aims to improve the vanilla Minecraft experience subtly, with in-universe implementations rather than relying on commands or menus.
- Technical Farms & Inventions: It enables new and interesting farm designs and inventions.
Note: It requires both a plugin and a datapack to function correctly.
Open Source and made to be customizable for hosts to create the experience they want.
Try it on: play.b4block.org
REQUIRED:
- Block4Block Datapack (SERVER-SIDE)
- Block4Block Plugin (SERVER-SIDE)
SOFT-DEPENDENCIES:
- ProtocolLib (SERVER-SIDE)
- Ultimate Advancement API (SERVER-SIDE)
RECOMMENDED:
- Block4Block Advancements (SERVER-SIDE)
- Block4Block Mod (CLIENT-SIDE)
Available Versions
How to Install Block4Block Mod on Your Server
Order Server
Order a Minecraft Java server with at least 3 GB RAM (4 GB recommended).
Set fabric Loader
In the panel under "Egg", select the fabric loader and matching Minecraft version (1.21.10).
Install Mod
Open the mod browser in the dashboard and search for "Block4Block Mod". Click "Install" – done! Alternatively, upload the .jar via SFTP to the /mods folder.
Compatibility
Mod Loaders
Minecraft Versions
1.21.10, 1.21.9, 1.21.8 (+3 more)
Server-side
✗ UnsupportedRecommended RAM
4 GB(min. 3 GB)Frequently Asked Questions
Block4Block Mod server crashes on startup – what to do?
Most common cause: wrong fabric 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 (1.21.10). You can switch loaders with one click in the panel.
Is Block4Block Mod compatible with fabric?
Block4Block Mod officially supports fabric for Minecraft 1.21.10, 1.21.9, 1.21.8. The Mado dashboard automatically detects incompatible loader combinations.
Server lagging with Block4Block Mod – how to optimize performance?
Recommended RAM: 4 GB (per 8 players). Use /spark profiler to check if Block4Block Mod 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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