
CastleBlocks
Alternative to chunk claiming, build castles instead!
Screenshots


About this Mod
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- Introduces bricks which only the owner can easily break, this has many PvP applications.
- Introduces boulders for use in PvP or PvE defending your castle! (Fabric & Forge 1.20+)
Fabric Only Features
- Introduces a lockable door system that allows only certain players with keys to open the door! (1.18+ Fabric)
- Introduces burning pitch buckets, for use in PvP or PvE defending your castle! (1.19+ Fabric)
- Introduces several small aesthetic items and blocks for use in your castle, such as a new candle variant. (1.19+ Fabric)
It is my goal to reach parity between the Fabric and Forge versions. Please be patient with updates!
Castleblocks is a SMP focused mod. Need a server?
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- Craft a Trowel, all recipes can be found within REI. *NEI/JEI for Forge
- Right click on smelted stone/deepslate to chisel it into a CastleBrick! Or polished andesite, blackstone, granite or diorite variant etc..
- To identify Castle Bricks, right click with a Trowel to view its owner.
More details may be seen here.
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Q. What is the mining level of a Castle Brick?
A. To the original builder, a Castle Brick is easily broken, to any potential intruders it is virtually impossible to break without a diamond pickaxe; which takes a long time still.
Q. What is the motive for this mod?
A. This mod serves as a clever alternative to all encompassing chunk claim mods, it is meant for SMP servers which enable PvP where players can build cool looking castles without fear of them serving no practical purpose, such as being simply destroyed or mined into during PvP. CastleBlocks fixes this by introducing blocks and doors which are difficult to break for all except the original builder. Instead of relying on chunk claiming mods, players can now raise stout forts to keep out potential invaders and griefers!
Q. Why are there missing features in X version?
A. The backports including the versions for 1.18 and 1.16 both lack features included in the main development branch of the mod, which is currently 1.20. Version 1.18 currently lacks all extra items such as pitch and resin, and will not recieve further updates. Version 1.16, due to the large changes in the codebase between versions, will not see any Castle Door varieties along with items missing in 1.18.
Can I use CastleBlocks in my modpack?
Yes!
Credits
- jusipat - Current Dev
- talhanation - Contributor
- Kjolt947 - Mod Artist
Available Versions
How to Install CastleBlocks 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 (1.21.1).
Install Mod
Open the mod browser in the dashboard and search for "CastleBlocks". Click "Install" – done! Alternatively, upload the .jar via SFTP to the /mods folder.
Compatibility
Mod Loaders
Minecraft Versions
1.21.1, 1.21, 1.20.4 (+14 more)
Server-side
✓ RequiredRecommended RAM
4 GB(min. 3 GB)Frequently Asked Questions
CastleBlocks 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 (1.21.1). You can switch loaders with one click in the panel.
Is CastleBlocks compatible with fabric and forge and neoforge?
CastleBlocks officially supports fabric, forge, neoforge for Minecraft 1.21.1, 1.21, 1.20.4. Note: Forge and Fabric mods are NOT cross-compatible – pick one loader and stick with it. The Mado dashboard automatically detects incompatible loader combinations.
Server lagging with CastleBlocks – how to optimize performance?
Recommended RAM: 4 GB (per 8 players). Use /spark profiler to check if CastleBlocks 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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