Grief Prevention

Grief Prevention

AUTOMATICALLY PREVENTS ALL FORMS OF GRIEF, including build/break, theft, spam, fire, spawn camping, lava and more, so you don't have to undo any damage after the fact. 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 creativity.

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 any of these public servers. :) We maintain these servers personally, which helps us 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.
    • New players get automatic claims around their first chests.
    • 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.
    • 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.
    • No pushing blocks in with pistons.
    • No pulling blocks out with pistons.
    • No TNT damage.
    • No creeper damage.
    • No damage from TNT cannons.
    • No explosive damage from other plugins, like Extra Hard Mode or Magic Spells.
    • No enderman 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.
    • Fluids will not flow into a claim from outside.
    • No placing blocks via TNT/Sand/Gravel cannon.
    • No placing portals without build permission (even by walking through a portal in another world).
  • 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.
  • 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).

More Great Plugins!

  • Anti-XRay
    • Limits how quickly players can mine valuables, based on their play time / values mined ratio.
    • Keeps your valuables in the ground, so non-cheating players can find them (unlike ore loggers).
    • Practically free to run, unlike the tremendously expensive Orebfuscator.
    • Most legit players won't notice, but xrayers will ragequit and move on.
  • Population Density
    • Automatically assigns new players to wilderness where they'll find other new players and plenty of space, wood, and ore.
    • Optional teleportation system which can't be abused by players to escape combat or save them from being lost.
    • Login queue to guarantee fairness when the server is full.
    • Optional reserved spots for administrators.
    • Automatically removes idle players when the server is nearly full.
    • Smart, multi-layered anti-lag feature set.

Coming Soon

These are my top priorities right now. It's not a complete list of everything I plan to do. :)

  • More performance tweaks.
  • Update /RestoreNature for new block types in 1.8.
  • Update /RestoreNature to handle water better.
  • Update /RestoreNature to regrow trees.
  • Fix killer bunnies not being damageable in other players' land claims (because Bukkit labels them "animals", not "monsters").
  • Add an abridged, easy-to-read chat log which auto-deletes its old data.
  • A /ignore command for players.
  • A /separate command to force two players to ignore each other.

Please Vote for Grief Prevention

I've just posted Grief Prevention on the Spigot site. 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 bigscary bigscary Apr 17, 2015 at 22:11 UTC - 0 likes

    @alyurbeis: Go

    That's a spigot/craftbukkit bug. You have to update your server to the latest (rerun buildtools.jar).

    @CrypticCabub: Go

    When other players who have that permission node log in,they will find that they also have the bonus blocks you assigned.

    @GodsDead: Go

    I thought you told me you didn't want them selling accrued blocks? Or did I misunderstand, and you meant that it's fine for players to sell them accrued blocks as long as they don't accrue them back?

    You cannot delete trust for a player that hasn't been on in a while, maybe to update their UUID from the conversion. This one I can't fix. The cost of looking through all players who've ever been on the server before is so high that it will crash some servers. :( I logged a bug against the spigot team for this when they first released 1.8, and they still haven't done anything about it.

    Sometimes Subclaims get deleted when the master claim is resized. I believe this is due to a fixed bug which caused SOME claims to get corrupted while it was still alive. The bug has been fixed, but the claims are not automatically repaired. If you delete and replace them (yes I know this is a pain in the ass), I expect they'll be permanently fixed.

    TNT is disabled everywhere, it does not do any damage in the wild, and if I turn on "BlockLandClaimExplosions" this makes them work again, but also destroys claims! We need an option to turn on TNT in the wild. I thought I thoroughly tested different combinations of the explosion settings, but I'll check again that this configuration works.

    A player can be sieged over and over again by different players, You mentioned a friend sieging them to add a cooldown; at least make it togglable, so we can deal with troublesome players, this would only be a select few. In what way do you want it toggleable? Do you mean a config option, or a per-player permission? Please go into a little more detail here so that I don't code up something and find out I misunderstood the ask.

    EDIT: If a player doesn't want to be besieged, why is he even playing on a server with siege mode enabled? He should be excited for the opportunity - there are so many ways to win even against overwhelming odds, because he has the home advantage. Hidden pitfalls and lava dispensers to kill his enemies. Build an escape tunnel to sneak out. Throw an ender pearl over their heads to get a head start so they can't catch you. Go out and fight them. Add arrow slits so you can shoot at them from relative safety. It's a solvable problem that the player should be working on, not you - don't you think?

    Random players have their claim blocks vanish without claiming or doing anything to change their claim blocks, One of my staff members claim blocks has gone from 6000 to 250 from last night to today. I have zero idea what could be causing this, or where to start looking. Adding to the puzzle, no one else has complained (noticed?). I will keep thinking about this and try to come up with something. In the meantime, I'm already working on more detailed logging that may provide some hints.

    Last edited Apr 17, 2015 by bigscary
  • Avatar of GodsDead GodsDead Apr 16, 2015 at 21:11 UTC - 0 likes

    @bigscary: Go

    Yes im in Database mode, I figured out the /sellclaim issue, Its actually something ive already covered a few times, so I feel a little rude repeating (sorry).

    • Sellclaims work as intended, removing from the bonusblocks column, this issue is when this hits 0 you cant sell any more blocks even if you have spare blocks to sell, what needs to happen is a check to see if you have excess claim blocks, if so then that bonusblocks will go into minus instead of stopping at 0, this way you can remove these from the overall available claim blocks so they the are indeed deducted.

    We have also found some more bugs to add on top of the ones I already reported, so Ill update the list here:

    • You cannot delete trust for a player that hasn't been on in a while, maybe to update their UUID from the conversion.
    • Sometimes Subclaims get deleted when the master claim is resized
    • TNT is disabled everywhere, it does not do any damage in the wild, and if I turn on "BlockLandClaimExplosions" this makes them work again, but also destroys claims! We need an option to turn on TNT in the wild.
    • A player can be sieged over and over again by different players, You mentioned a friend sieging them to add a cooldown; at least make it togglable, so we can deal with troublesome players, this would only be a select few.
    • Sellclaimblocks is re-reported with a fix above.
    Last edited Apr 17, 2015 by GodsDead
  • Avatar of jahangir13 jahangir13 Apr 16, 2015 at 11:28 UTC - 0 likes

    <<reply 2539057>>

    If you are in linux you could change the appropriate line in each GP player file via batch script, like:

    for all files in GriefpreventionData/PlayerData do

    // get the 2nd line (bonus claim blocks)
    bonusblocks=`head -2 <file> | tail -1`

    // add x to it (the number you want to give each e.g. 10)
    bonusblocks=$(($bonusblocks + 10))

    // replace the old bonus claim line (line 2) with the new one
    sed '2 c\ > $bonusblocks' <filename>

    Needs a bit trial&error to get this running as it should I guess as I am always not sure about the correct syntax. But should be the easiest to do something like this when server is down (e.g. in a restart).

    Last edited Apr 16, 2015 by jahangir13

    JDynmapGriefPrevention: Show extended GP claim information on Dynmap
  • Avatar of CrypticCabub CrypticCabub Apr 16, 2015 at 03:08 UTC - 0 likes

    Hey, it's me again :)

    Turns out /acb [permissions.everybody.has] {amount} is only assigning claim blocks to people who are currently online. Is there any way I can assign claimblocks to everybody (online and off) at a set time without having to maintain a list of all students on our servers? Hoping to be able to schedule the command to assign claimblocks every weekend.

    Great plugin, thanks for all the hard work. God bless, CrypticCabub (VicePrincipal_Cryptic, MinecraftHomeschool)

  • Avatar of OddWhirled OddWhirled Apr 15, 2015 at 19:19 UTC - 0 likes

    @bigscary: Go

    Haha, yeah I already updated and it works successfully. I told the same to @Shayd713.

    Thanks! ;D

  • Avatar of alyurbeis alyurbeis Apr 15, 2015 at 18:42 UTC - 0 likes

    Hello. When I right-click the stick or have activated the adminclaims plugin do DOUBLE CLICK. I can not make claims gets me 1 single block.

    Sorry my english

  • Avatar of bigscary bigscary Apr 15, 2015 at 16:50 UTC - 0 likes

    11.3.2 Updates

    • Added support for RoyalCommands plugin.
    • Fixed /restorenature bugs associated with setting the sea level very low.

    @Shayd713: Go@OddWhirled: Go

    I tried very hard to reproduce these issues with latest 1.8.3 spigot and latest GP, and couldn't. I suspect your 1.8.3 version is an old 1.8.3 version - try updating by re-running buildtools.jar. If that doesn't help, then please share with me the following:

    • Output from /version
    • Output from /version griefprevention
    • Any errors in your logs from around the time you had the problem (use
    • Your complete config file (use pastebin for this too).
    • Detailed steps for reproducing the problem (make sure you can personally make it happen on your server first, then tell me what you did to make it happen).

    @OddWhirled: Go

    I wish I could tell people exactly what build they need, but the builds aren't numbered. They just all have some crazy GUID, so it's unclear which builds are newer versus older (boo Spigot team!).

    I do know about the fall damage thing. Cancelling the "player changed a block by stepping on it" event also cancels the damage. I logged a spigot bug but they haven't fixed it.

    @Duffa13: Go

    Yep it's now griefprevention.claimslistother, I think. Check the docs.

    Last edited Apr 15, 2015 by bigscary
  • Avatar of Snorpenbass73 Snorpenbass73 Apr 15, 2015 at 14:58 UTC - 0 likes

    Thx OddWhirled it did solve my problems by changing gamemode :) Been trying to figure out for a week now what has been wrong or how to give permissions to this...

  • Avatar of Duffa13 Duffa13 Apr 15, 2015 at 12:38 UTC - 0 likes

    Has the permission node for /claimslist <others> changed since version 7.7? I have given both GriefPrevention.Commands.claimslist & griefprevention.claimslistother and I am getting "You don't have permission to get information about another players land claims" Thanks!

  • Avatar of OddWhirled OddWhirled Apr 15, 2015 at 09:30 UTC - 0 likes

    @Shayd713: Go

    Make sure to run BuildTools #35 to get the VERY latest version of Spigot 1.8.3. If you type /version in the game and it does not say "You are running the latest version" then it may not work.


Date created
Dec 14, 2011
Last update
Apr 15, 2015
Development stage
GNU General Public License version 3 (GPLv3)
Curse link
Grief Prevention
Recent files
  • R: 11.3.2 for 1.8.3 Apr 15, 2015
  • R: 11.3.1 for 1.8.3 Apr 12, 2015
  • R: 11.3 for 1.8.3 Apr 09, 2015
  • R: 11.2.2 for 1.8.1 Apr 03, 2015
  • R: 11.2.1 for 1.8.1 Mar 30, 2015