About World Guard
From ModrinthMod that prevents your world from loading if its generator settings changed between now and the last time you loaded your world.
What is this?
- World Guard is a mod that aims at preventing you from corrupting your world with awful chunk walls and missing biomes due to a changing seed or world generator or missing biomes.
How does it work?
- Between world loads, World Guard locally saves basic information about your world's generator settings, dimensions, biomes installed mods, and installed datapacks. With this basic information stored, everytime the server starts, World Guard will run various checks including:
- World Seed is the exact same. (config=
crash_when_mismatched_seed=true) - Chunk generator settings and type are the exact same. (config=
crash_when_mismatched_chunk_generator=true) - Ensuring no biomes have been removed from your server. (config=
crash_when_removed_biome=true) - Ensuring no dimension were removed from your server. (config=
crash_when_missing_dimension=true) - Ensuring the biome source used to sample biomes matches (config=
crash_when_mismatched_biome_source=true)
What happens if it catches any of those errors?
- World Guard will crash your game with the goal of preventing data corruption to your world's chunks by not letting the chunk's generate at all. The created crash report will give you very detailed information in regards to the before and after.
I am convinced my world will be fine!
- Ensure you back up your world before deleting the
<yourgameinstance>/config/worldguard/backup.datfile which will allow you to load into your world.
How do I configure this?
- Config file for this mod can be found at
<yourgameinstance>/config/worldguard/config.json
Highlights
From source dataGame versions
Built for Minecraft 1.21.1.
Loaders
Runs on Fabric, Forge and NeoForge.
Footprint
Rated a light load on a server.
World Guard on Nxeon
From our catalogue- One-click install
- Supported on Nxeon Minecraft servers. We download it from Modrinth, place it, and restart the server.
- Server side
- Required on the server
- Server type needed
- Fabric, Forge, NeoForge
- Server load
- light
- Smallest plan we suggest
- Minecraft — 2 GB (2 GB RAM). This follows our own load rating above, not a benchmark.
- Latest build
- 1.0.0-Forge, released 2025-03-18
Game versions by loader
| Loader | Game versions | Newest |
|---|---|---|
| Fabric | 1.21.1 | 1.21.1 |
| Forge | 1.21.1 | 1.21.1 |
| NeoForge | 1.21.1 | 1.21.1 |
From 3 recorded builds of World Guard.
Recent builds
| Build | Released | Game versions | Loaders |
|---|---|---|---|
| 1.0.0-Forge | 2025-03-18 | 1.21.1 | Forge |
| 1.0.0-Fabric | 2025-03-18 | 1.21.1 | Fabric |
| 1.0.0-Neoforge | 2025-03-18 | 1.21.1 | NeoForge |
Run World Guard on a Minecraft server
Pick a server or deploy a new one above; it is installed in one click.
What kind of mod it is
From the catalogTechnology & automation
Machines, power, logistics and automation.
Runs on your server
From source side supportModrinth lists World Guard as required on the server. Check its Modrinth page to see whether players need it too.
Compatibility
- Game
- Minecraft
- Loaders
- FabricForgeNeoForge
- Runs on
- Serverrequired on the server
- Game versions
- 1.21.1
Verified at the source
- ✓ModrinthOfficial listing, checked 2026-10-02Open ↗
- ✓AuthorCorgiTaco, as published on Modrinth
- ✓LicenseLicenseRef-All-Rights-ReservedFree












