Chunck Protector
Chunk Protector is a high-performance, Server-Side ONLY administrative protection matrix. It provides granular flag-based territory control with an intuitive chest GUI—no client mods required.
- Loaders
- Fabric
- Downloads on Modrinth
- 664
- Followers on Modrinth
- 5
- versions
- 7
- Updated
- September 27, 2026Sep 27
- Published
- in 2026
At a glance
Install on the server only; players don't need it
Chunck Protector
Chunck Protector is a server-side only Fabric mod that protects chunk-based territories with per-area flags. It runs entirely on the server, so players join with a vanilla client and need no mods installed. There are no dependencies besides Fabric Loader (no Fabric API required).
How it works: an administrator selects chunks with an in-game tool, creates a named protected area from the selection, and then toggles protection flags either from an in-game chest GUI or with commands. Every flag is enforced on the server the moment the matching event touches a protected chunk: block edits, PvP hits, explosions, projectiles, ender pearls, liquid flow, fire spread, flight, mob spawning, and more.
Supported versions
Download the file whose name matches your Minecraft version.
| File | Minecraft | Java | Fabric Loader |
|---|---|---|---|
| chunck-protector-1.0.0+1.21.11.jar | 1.21.11 | 21 | 0.19.3 |
| chunck-protector-1.0.0+26.1.jar | 26.1 - 26.1.2 | 25 | 0.19.3 |
| chunck-protector-1.0.0+26.2.jar | 26.2 | 25 | 0.19.3 |
| chunck-protector-1.0.0+26.3.jar | 26.3 | 25 | 0.19.5 |
Installation
- Install Fabric Loader for your Minecraft version on the server.
- Put the matching
.jarfile into the servermodsfolder. - Start the server. A default config file is created at
config/chunk_protector.json. - Give yourself operator status. All management commands require the configured permission level (default: operator level 4).
- Nothing needs to be installed on clients.
Commands
All commands start with /chunkprotector and require operator permission (configurable, default level 4).
| Command | Description |
|---|---|
/chunkprotector info | Show command help in chat |
/chunkprotector reload | Reload the config file from disk |
/chunkprotector list | List all protected areas with chunk counts |
/chunkprotector check | Show whether your current chunk is protected and list its flags |
/chunkprotector menu | Open the flag GUI for the area you are standing in |
/chunkprotector tool stick | Give yourself the Admin Protection Tool (stick) for selecting chunks |
/chunkprotector tool shovel | Give yourself the Claim Tool (netherite shovel) |
/chunkprotector selection | List your currently selected chunks |
/chunkprotector selection clear | Clear your current chunk selection |
| `/chunkprotector area create ` | Create a protected area from your selected chunks |
| `/chunkprotector area menu` | Open the flag GUI for a specific area |
| `/chunkprotector area toggle <true|false>` | Set one flag of an area from the command line |
Area ids and flag names support tab completion.
Typical setup flow: /chunkprotector tool stick, right-click blocks to select chunks, /chunkprotector area create spawn, then /chunkprotector area spawn menu to configure flags.
Configuration
Main file: config/chunk_protector.json.
| Field | Default | Description |
|---|---|---|
admin_tool_item | minecraft:stick | Item handed out by the tool stick command |
claim_tool_item | minecraft:netherite_shovel | Item handed out by the tool shovel command |
required_permission_level | 4 | Operator level required to run management commands |
safety_border_buffer_blocks | 16 | Buffer distance around protected areas used by liquid-flow protection |
protected_areas | [] | Array of protected area definitions |
Each entry in protected_areas has the following shape:
| Field | Default | Description |
|---|---|---|
area_id | (required) | Unique name of the area, used by commands and the GUI title |
chunks | (required) | Array of chunk coordinates, each as `{"x": , "z": }` |
auto_merge | true | Fill gaps between the listed chunks so the area behaves as one region |
flags | (see below) | Per-area protection flags |
Flags
Every area has its own copy of these flags. Flags can be toggled in the GUI or with `/chunkprotector area toggle <true|false>`.
| Flag | Default | Description |
|---|---|---|
pvp_enabled | false | When false, player attacks on other players are cancelled in the area |
block_edit_admin_only | true | When true, only operators can place or break blocks in the area |
ender_pearls_allowed | false | When false, ender pearl teleports into or inside the area are blocked |
tnt_explosions_allowed | false | When false, TNT explosions are suppressed in the area |
liquid_flow_allowed | false | When false, lava and water cannot flow into the area |
griefing_protection_active | true | Master switch for general griefing checks |
projectiles_disabled | true | When true, projectiles such as arrows are stopped in the area |
no_flight_zone | true | When true, flight is disabled for non-operator players in the area |
no_fight_zone | true | When true, all combat and entity damage is blocked in the area |
mob_spawning_allowed | false | When false, natural mob spawning is blocked in the area |
wither_creeper_grief_allowed | false | When false, wither and creeper explosions do not break blocks |
hostile_despawn_proximity_radius | 8 | Hostile mobs within this many chunks of a player are despawned; set to 0 to disable |
sulfur_cube_damage_disabled | true | When true, sulfur cubes cannot explode in the area (26.2 and newer) |
fire_spread_disabled | true | When true, fire cannot spread inside the area |
crop_trample_disabled | true | When true, farmland and crops cannot be trampled in the area |
item_drop_disabled | false | When true, non-operator players cannot drop items in the area |
vehicle_entry_disabled | false | When true, players cannot enter boats, minecarts and other vehicles in the area |
animal_breeding_disabled | false | When true, animal breeding is blocked in the area |
Flag GUI
The /chunkprotector menu and `/chunkprotector area menu` commands open a 54-slot chest menu. The top row shows the area name, chunk count and auto-merge state. Flags are grouped by category (Combat, Building, Movement, World, Entities) and each item shows its current ON/OFF state, what the flag does, what ON and OFF mean, and a click hint. Enabled flags glow. Left-click a flag to toggle it; the change saves immediately. Empty slots are filler panes and cannot be taken.
Notes for server owners
- The mod is server-side only. Do not put it on clients; vanilla clients work as-is.
- Reload the config with
/chunkprotector reloadafter editing the JSON by hand. - Overlapping chunk selections resolve through an internal cache that is rebuilt on load and reload.
- License: MIT.
FAQ
How to install Chunck Protector?
Install Fabric for your Minecraft version, download Chunck Protector for the same version and loader, put the file into the mods folder and launch the game with the loader profile.
Which Minecraft versions does Chunck Protector support?
Chunck Protector has builds for Minecraft 1.21–26.3.
Is Chunck Protector needed on the server?
Server only — players don't need to install it
