ClaimBlocks (ProtectionStones mod)
by F0CUS
ClaimBlocks, formerly known as the ProtectionStones mod, lets server staff and players place a claim module that sets up a protected area in one step.
What it does
Placing a claim module instantly establishes a customizable security perimeter, for example a 20x20 block area. The mod works out the boundaries and prevents overlaps with the zones of other players. It handles the coordinate math in the background, so the claim edges are set without manual calculation.
The mod is server-side only, so players join without installing anything. Installation needs Fabric API, Fabric Language Kotlin, GooeyLibs and LuckPerms. Files are published for Fabric and 1.21.1 only, with 1.0 for 1.21.1 as the latest file on the beta channel, and the code is not open source; the mod is released under All rights reserved.
Key features
Flag configuration
Server-side rules such as PVP, mob spawning and TNT can be toggled with a single click.
Member management
Trusted players are added and removed through a head-based interface.
Entry notifications
Custom titles and subtitles can greet players as they cross into a claimed territory.
Visual feedback
A view command shows the exact edges of a claim, rendered with particle effects.
Admin override
Admins with the cb.admin permission bypass protection and can open a player's menu to settle disputes and griefing.
Claim list jumps
An active claim can be reached directly from the management list.
Compatibility
Latest build for each game version and loader.
Only full game releases are shown. This mod publishes no snapshot builds.
Requirements
Dependencies declared by the latest file for each loader.
Required 4
Use cases
Player housing on servers
Server owners can give each player a protected plot that others cannot build on, while the claims stay clear of one another.
Who it’s for: Server owners who run Fabric 1.21.1 servers and want a claim system that can be configured with flags, trusted members and admin tools.
How it compares
SettleCraft is a Fabric option for 1.21.1 – 1.21.11 that needs the server, with the client optional, and is released under the MIT License, though it is not open source. Safe Zone Claims is a server-side Fabric mod for 1.21 – 26.2, released under the MIT License and open source. Faction Protection Whitelist is a server-side Fabric mod for 1.18.2 under the MIT License, not open source.
| Mod | Loaders | Game versions | Environment | Updated |
|---|---|---|---|---|
| ClaimBlocks (ProtectionStones mod) | Fabric | 1.21.1 | Server-side only | 2026-01-16 |
| SettleCraft | Fabric | 1.21.1 – 1.21.11 | Server required, client optional | 2026-05-17 |
| Safe Zone Claims | Fabric | 1.21 – 26.2 | Server-side only | 2026-08-13 |
| Faction Protection Whitelist | Fabric | 1.18.2 | Server-side only | 2023-12-15 |
Questions
Does ClaimBlocks need Fabric API?
Do players need to install ClaimBlocks?
Which game versions does ClaimBlocks support?
In the catalog
ClaimBlocks (ProtectionStones mod) is one of 29,952 Game mechanics mods on ModsFinder, and one of 19,630 Game mechanics mods for Fabric. 32,366 mods support Minecraft 1.21.1.
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What the author says
ClaimBlocks is a high-performance, aesthetically refined protection system for Minecraft (Fabric 1.21.1). Designed for professional servers that value both security and visual excellence, this mod replaces traditional "protection stones" with a modular, highly customizable system. (Important: Review the readme.md…
Official listing
- Modrinth page
- modrinth.com/mod/claimblocks
- Owner
- F0CUS
- Published
- 2025-10-26
- Updated on Modrinth
- 2026-01-16
- Facts verified
- 2026-10-15