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!

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  • Avatar of BC_Programming BC_Programming Mar 02, 2014 at 08:28 UTC - 0 likes

    @Garrash: Go

    If you edit the Material Lists, you cannot have the Config Search option enabled. I haven't actually tested GP with a MCPC+ server since 1.4.7 when I was getting MystCraft working, but that should work. Only thing I can think of would be to remove the last portion, eg:

    - 2005:4

    instead of:

    - 2005:4:ResonatCell

    @beetuna: Go

    The PlayerData files store The current claim blocks, the number of bonus claim blocks, and that is practically it. It also saves some claim information however it completely ignores that when it is read in since that information is acquired from the claims themselves when they are loaded.

    There is however one downside in that resetting them to the initial allottment will actually make their remaining claim blocks negative, since they still have claims.

    For example, the default is 100 blocks; so if I make a 100 block claim, it will show my remaining claim blocks as zero. However, 100 is still stored- the remaining blocks are calculated by subtracting the area of all the players claims from their accrued claim block total added to their bonus claim blocks.

  • Avatar of Garrash Garrash Mar 02, 2014 at 04:41 UTC - 0 likes

    Is there no place to just enter item IDs in anymore? The Regex isn't finding My ME Access stuff in 1.6.4 and the systems aren't being protected, as these are massive amounts of items this is a huge issue for players.

    I've tried editing at the end of the world files and it doesn't seem to work, has the format changed? I'm doing it like this:

        - 900:*:MEAccess
        - 2005:4:ResonatCell
        BlockIdsRequiringContainerTrust: []
        PlayersIgnoringAllClaims: []
    Last edited Mar 02, 2014 by Garrash

  • Avatar of Cra2ytig3r Cra2ytig3r Mar 02, 2014 at 00:58 UTC - 0 likes

    @beetuna: Go

    did u try this? GriefPrevention.Spam.AllowedIpAddresses default:; semi-colon separated list of IP addresses that will not trigger spam protection. or this: prevents spam logic from occuring for this player.

  • Avatar of Cra2ytig3r Cra2ytig3r Mar 02, 2014 at 00:54 UTC - 0 likes

    @beetuna: Go

    Yes that should work, but itll be as if they have never made a claim before & they will lose all claims previously made.

  • Avatar of Cra2ytig3r Cra2ytig3r Mar 02, 2014 at 00:50 UTC - 0 likes

    @ArcticWolf1512: Go

    you could try setting this to 0 or -0. GriefPrevention.Spam.BanThreshold default:8 If a player's "SpamCount" gets this high, then the player will be banned. This is performed by running the commands in the GriefPrevention.Spam.BanCommand entry.

    or set this to just kick BanCommand: ban {0};kick {0}

  • Avatar of Cra2ytig3r Cra2ytig3r Mar 02, 2014 at 00:45 UTC - 0 likes

    @oooorgle: Go

    You can!

    ProtectPlayersInLandClaims: PlayerOwnedClaims: true AdministrativeClaims: false

  • Avatar of oooorgle oooorgle Mar 01, 2014 at 22:35 UTC - 0 likes

    If only it had an option to disable pvp within claims I'd use this plugin over Residence or Towny. But, until it does, they win and I will continue to use them instead. :(

  • Avatar of ArcticWolf1512 ArcticWolf1512 Mar 01, 2014 at 06:21 UTC - 0 likes

    How would I configure it to where it would mute the spammer, not ban?
    Could you make a tutorial or link me it if there is already one?

  • Avatar of beetuna beetuna Feb 28, 2014 at 20:18 UTC - 0 likes

    I want to reset everyone's accrued claim blocks and reset them back to the starting allotment. Will deleting the files in the PlayerData folder accomplish this task? What else is stored in the playerdata files? (Latest dev version, flat file storage)

  • Avatar of beetuna beetuna Feb 28, 2014 at 16:10 UTC - 0 likes

    Admins/ops are being blocked by spam filter, regardless of whatever permissions I manually give them. Is this a bug?


Date created
Dec 14, 2011
Last update
Oct 02, 2016
Development stage
GNU General Public License version 3 (GPLv3)
Curse link
Grief Prevention
Reverse relationships
Recent files
  • R: 15.3 for 1.10 Oct 02, 2016
  • R: 15.2.4 for 1.10 Sep 29, 2016
  • R: 15.2.3 for 1.10 Sep 16, 2016
  • R: 15.2.2 for 1.10 Sep 08, 2016
  • R: 15.2.1 for 1.10 Aug 31, 2016