Grief Prevention


AUTOMATICALLY PREVENTS ALL FORMS OF GRIEF, including build/break, theft, spam, fire, spawn camping, lava dumping, chat trolling, advertising and more, so you don't have to undo any damage after the fact. It even teaches players how to use it so you don't have to! No configuration or database required. Stop responding to grief and prevent it instead. Grief Prevention will solve your grief problems without requiring you to manage a roster of trained administrators, juggle 10 different anti-grief plugins, take away cool standard game features, publish a training manual / tutorial for players, or add explanatory signs to your world. You can also choose to integrate PvP elements into build design to finally get a PvP experience befitting a sandbox game about creative building.

Grief Prevention stops grief before it starts automatically without any effort from administrators, and with very little (self service) effort from players. Solve all your grief problems with a single download, no database, and no configuration step.

Official Servers (Try it for yourself!)

You can experience this plugin for yourself (as a player) by joining this public server. :) I maintain this server personally, which helps me catch bugs and spot opportunities for new features and improvements. Have fun!

Downloads by Minecraft Version

Please choose the version that matches your Minecraft server version! :)

The Manual

Feature List

Yes, everything is customizable. See Setup and Configuration.

  • No database or world backups required.
  • Extremely efficient CPU / RAM usage.
  • Land claims are easy to manage.
    • Players create and manage their own land claims, so you don't have to do it for them.
    • New players get automatic claims around their first chests so they're protected even if they don't know how to create land claims yet.
    • Players who ask for help in chat get an instant link to a demonstration video.
    • Resizing claims and creating new claims is done with ONLY the mouse, no slash commands (slash commands are also available).
    • When a player appears to be building something nice outside his claim, he's warned and shown his claim boundaries.
    • Claim boundaries are easy to see, and don't require any client-side mod installation.
    • Extremely easy-to-remember, single-parameter slash commands for giving other players permissions.
    • Claim subdivision and granular permissions are available to organize towns and cities. Watch this video.
  • It's IMPOSSIBLE to grief a land claim. Watch this video.
    • No building or breaking.
    • No stealing from ANY containers.
    • No sleeping in beds.
    • No button/lever usage.
    • No adjusting redstone repeaters or other configurable blocks.
    • No pushing blocks in with pistons.
    • No pulling blocks out with pistons.
    • No TNT damage (including cannons).
    • No creeper damage.
    • No explosive damage from other plugins, like Extra Hard Mode or Magic Spells.
    • No enderman/silverfish block changes.
    • All doors may be automatically locked (optional, see config file).
    • No killing or luring animals away.
    • No stealing water (e.g. buckets).
    • No trampling crops by players, animals, or monsters.
    • No building overtop, all claims reach to the max build height.
    • No placing or breaking paintings / item frames / armor stands, etc.
    • Fluids will not flow into a claim from outside.
    • No placing blocks via TNT/Sand/Gravel cannon.
  • Pets and death loot are protected.
    • Players can't pick up what another player dropped on death without permission.
    • All types of pets are protected everywhere, even outside of land claims (can be configured per-world).
  • Excellent anti-spam protection
    • Warns, then mutes, then may kick or ban spammers (configurable - you choose).
    • Most spammers get only one message out before they're muted.
    • Blocks server advertising (IP addresses).
    • Blocks repeat message spam.
    • Blocks ASCII art (ex. Nyan Cats) spam.
    • Blocks similar message spam.
    • Blocks unreadable (gibberish) message spam.
    • Blocks CAPS.
    • Blocks macro spam (very different messages in quick succession).
    • Blocks login/logout spam, even when the spammer has multiple accounts.
    • Blocks death spam.
    • Blocks bot team spam.
    • Blocks slash command spam, including /tell, /emote, and any more you add.
  • Wilderness Protection and Rollback
    • Fire doesn't spread or destroy blocks.
    • Creepers and other explosions don't destroy blocks above sea level.
    • TNT doesn't destroy blocks above sea level.
    • No planting trees on platforms in the sky ("tree grief").
    • Instant, point and click nature restoration for not-claimed areas. Watch this video.
      • Insanely easy and fast fixes for penises, swastikas, and anything else unsightly.
      • Point at what you don't like and click, and it's fixed. Even from far away.
      • Never accidentally changes blocks inside land claims.
      • No need to investigate who built it, who broke it, or when they did it.
      • Doesn't matter if the griefer built with "natural" blocks, it will still be fixed.
      • No database.
      • No backups.
      • No chunk regeneration (it's dangerous for technical reasons).
      • Fixes bad chunk generations, like floating islands. It will be better than new.
      • Fills holes, even next to water to correct big spills.
      • Smooths noisy terrain.
      • No griefer construction is safe. If it's unnatural enough to be noticeable by players, it will be removed or filled-in.
  • Land claims can't be used as a griefing tool.
    • It's impossible to get a player "stuck" inside a land claim.
    • Land claims beyond the first require a golden shovel.
    • Minimum claim size prevents sprinkling small claims to annoy other players.
    • Max claim allowance grows with time played on the server, and can't be cheated by idling.
    • A simple administrative slash command will instantly remove all of a griefer's claims, no matter where they are.
  • Catches clever griefers.
    • Enhances the /ban command to ban ALL a griefer's accounts (not just his IP address).
    • Logs sign placements.
    • /SoftMute command to shut down chat trolls without them knowing they're beaten.
    • Abridged chat logs make reviewing what happened while you were away super-quick and easy.
    • Automatically mutes new-to-server players who use racial or homophobic slurs.
  • PvP Protections.
    • When PvP is off, no setting fire or dumping lava near other players.
    • Absolutely bullet-proof anti-spawn-camping protection including bed respawns, which requires no configuration.
    • No logging out, stashing items, or using plugin teleportation to escape combat.
    • Optional siege mode, to answer players who hide in their claimed houses to avoid combat.
  • Supports your server growth.
    • Permit players to exchange server currency for claim blocks (requires configuration and other plugins).
    • Grant claim blocks automatically for votes, donations, etc (console command provided, other plugins required).

Please Vote for Grief Prevention

I've also posted Grief Prevention on the Spigot site, where plugins are ranked based on reviews. If you love GP, please take a couple of minutes to give GP your rating and leave a short review. Better rating and positive reviews will help server owners who look for plugins on the Spigot site make the safe choice (GP) instead of downloading something sketchy or incomplete. :) Thanks so much for all your support!

You must login to post a comment. Don't have an account? Register to get one!

  • Avatar of bigscary bigscary Mar 18, 2012 at 23:59 UTC - 0 likes

    2.6 Update! Added siege.

    I CAN'T EMPHASIZE ENOUGH THAT THIS IS A BETA RELEASE. Sorry for the caps, but seriously, it's likely there will be bugs. I very much appreciate your bug reports!! But please, keep the drama to a minimum, remembering that I'm not promising a bug-free version here.

    To reduce confusion, please consider the details of siege.

    • Siege is off by default. You have to turn it on.
    • Do NOT enable siege on a world where people have been building a while. They may be very upset to suddenly discover that their homes, which were not designed for siege PvP, are vulnerable.
    • Please do carefully consider the list of vulnerable blocks before turning this thing on. It is customizable.
    • The purpose of siege is to allow for reasonable PvP on a server where builds can be protected. When a player uses a claimed area to exercise cowardice, his enemies have /siege to force that player to face them. Other "pvp" servers and systems have spoiled Minecraft players by allowing them to entirely opt out of pvp whenever they want, at no cost. The /siege command will, therefore, make many players who think they're "good" turn into whiny little babies. You have been warned!
    • /Siege <player> starts the siege. The defender must be in a claim where he has some level of permission protecting him, and the attacker must be nearby.
    • Neither attacker nor defender may log out during the siege. A disconnection is a forfeit, and the disconnecting player will die.
    • Neither may access containers or drop items, either, to prevent players from protecting stashing their valuables.
    • They can still accept items from other players. Think supply lines.
    • If the defender runs to another claim where he's protected, the siege extends to include that new claim.
    • The siege ends when one of the following is true:
    • * Either the attacker or defender dies or logs out.
    • * Either of them flee the area.
    • If the attacker wins, the defender's doors are unlocked for five minutes to allow the winners to collect any valuables dropped. At the end of that five minutes, anyone in a sieged claim who doesn't have permission there will be ejected.
    • Administrative claims cannot be sieged.
    • When a siege ends, the attacker is on siege cooldown for an hour. He may siege elsewhere, but can't siege the same player or any of the sieged claims again until the hour is up.

    Please post your questions and any bug reports!

  • Avatar of bigscary bigscary Mar 18, 2012 at 23:41 UTC - 0 likes

    Updated license.

    @Rowtag87: Go

    Read the FAQ. It's not possible to disable fire spread. You can place fire on netherrack and obsidian.

    @domingo15: Go

    Spam covers many things, not just message speed.

    About the trees, did you wait five minutes? That's how long it takes.

    @Confuzzled77: Go

    You can only light TNT with redstone, as far as I can tell. A minor side-effect of limiting fire placement, hope it's not too inconvenient.

    @deleted_8595646: Go

    No groups support.

    @EstJoel: Go

    That's not an error. If your map is updated from 1.1 to 1.2, regenerating a chunk will give you an entirely new chunk, even a different biome. This is on my todo list to fix, to the extent it can be fixed.

    Last edited Mar 18, 2012 by bigscary
  • Avatar of Rowtag87 Rowtag87 Mar 18, 2012 at 20:27 UTC - 0 likes

    Why is this Plugin preventing Fire from allover the world? I can't set fire, is this a bug or a setting?

  • Avatar of puppydemon20 puppydemon20 Mar 18, 2012 at 06:04 UTC - 0 likes

    No one on my server has any claim blocks

  • Avatar of spblat spblat Mar 17, 2012 at 21:19 UTC - 0 likes

    Maybe he's in violation of his own license. I don't care. I'd rather he focus on updating it with bug fixes and new features than putting it into a state where he's comfortable releasing the source. I'm not aware of a plugin that gets more dev attention. I couldn't run my server without it.

    Perhaps he'll agree to release the source if he gets bored of it, regardless of whether the source is adequately commented. Then can we let him stick with the fun stuff for now?

    Last edited Mar 17, 2012 by spblat
  • Avatar of EstJoel EstJoel Mar 17, 2012 at 19:52 UTC - 0 likes

    It seems there is an error with the /restorenature command (sorry if someone already commented with this issiue, I don't have time to read through all the comments :P) I tried it in a plains biome, but it turned it into a desert...

  • Avatar of cvxx7q cvxx7q Mar 17, 2012 at 08:48 UTC - 0 likes

    @zathrus_writer: Go

    its not being hidden, its just not documented

  • Avatar of zathrus_writer zathrus_writer Mar 17, 2012 at 08:46 UTC - 0 likes

    I don't quite understand the logic behind hiding the source code until it's "complete"... firstly, it violates the licence under which this plugin is being developed, second of all, it would only make the plugin more popular, since at least 5 people already suggested to build features up on the plugin itself

  • Avatar of mdcollins05 mdcollins05 Mar 17, 2012 at 03:07 UTC - 0 likes

    @bigscary: Go

    Sorry, probably didn't notice the lava control because I was op on the server. >_<

    I'd love to try to make an API for this plugin. Mind if I fork it and give it a shot?

    I imagine with an API, many features would be added by other plugins. Could produce some interesting results.

    Last edited Mar 17, 2012 by mdcollins05



Date created
Dec 14, 2011
Last update
May 11, 2016
Development stage
GNU General Public License version 3 (GPLv3)
Curse link
Grief Prevention
Reverse relationships
Recent files
  • R: 14.6 for 1.9 May 11, 2016
  • R: 14.5.4 for 1.9 May 05, 2016
  • R: 14.5.3 for 1.9 Apr 28, 2016
  • R: 14.5.2 for 1.9 Apr 26, 2016
  • R: 14.5.1 for 1.9 Apr 15, 2016