If the damage has already been done, the best way to remove it is with world editing plugins. The best way to prevent this from happening is to simply limit who is able to place lava or water using a Bukkit plugin. Water or lava can impede players from rebuilding the ruins of their houses. Water and lava can also be used together to create large amounts of cobblestone, stone or obsidian (sometimes referred to as lava casts). If able, griefers often will attempt to place as much lava and/or water around a map in order to make it as ugly and dangerous as possible. You can also use run the command /gamerule mobGriefing false to stop mobs such as creepers or endermen from modifying the terrain. Note that this will cause the mobs to drop loot, so you may have to run this several times to kill everything, especially with slimes. Kill first command will kill all chickens in the loaded world, the second all non-player entities within 50 blocks, and the third a maximum of 25 chickens within 50 blocks. If you are having a problem with a specific type of mob or in a certain area, you could use a repeating command block or function to kill those mobs. Here are some example commands you can use. Using /kill is the easiest way to clear up mob lag. There are various plugins available to limit the number of mobs, making it harder to create lag. Alternatively, making a huge gold farm can also lag the server. Creepers, withers, blazes, endermen, ghasts, and the ender dragon are even more destructive, as they can move and destroy blocks.Ĭhicken spamming is one of the more common ways of making mob lag, as automatic chicken farms are relatively easy to create.
If the spawned mobs are hostile, they can be especially destructive on PvP servers. With enough lag, the map can become corrupted and unusable. This form of griefing is spawning mobs to the point that the server lags. Stopping chat spam is relatively easy with spam protection plugins, of which there are a variety on Bukkit.īanning or kicking are the only options, although to lessen the impact you can tell players to only have chat on when they need it. The result of this can be server lag, which usually makes chat spam more of an annoyance than vandalism. Also, admins can use fill commands to remove any inappropriate structures from griefers.Ĭhat spam is simply typing and sending large amounts of messages in chat, often randomly. Banning offensive players is a good way to discourage griefing. Sand and gravel can be removed quite quickly using torches. If you have chosen to use Bukkit, logging and rollback plugins can once again completely undo the damage done by griefers. Lava casts are also a problem (see Lava/Water Flooding below). Sometimes players even surround other players' structures with obsidian, bedrock, and sand or gravel which are annoying due to their falling properties. Also, cages around players that are AFK are built, often of materials unable to mine with tools obtained early on, like obsidian. Nearly as frequently as simple destruction of servers, griefers also often attempt to create nude or offensive pixel art. Other than that, frequently backing up your world and banning or kicking griefers is about all you can do. Kill you are using Bedrock Edition, you can change the gamerule tntexplodes to false. You can use the following commands, either in a repeating command block, or a function to prevent TNT from being used. Restricting TNT will render cannons worthless.
Logging and rollback plugins can completely undo the damage done by individual griefers.
This can be avoided with block and chunk protection plugins if you are using Bukkit. End crystals are also effective, but more expensive and less practical to place. A fast, and potentially more effective, method (if the server allows it) is spawning withers. When it comes to destroying houses, griefers will often steal the player's most valuable items before destroying the house. A more time-consuming and generally expensive method of griefing is the creation of TNT cannons to bombard other players' creations from a safe distance. Many hacked clients have these as built in features. This can include Creative "nuking", where users instantly mine all blocks within reach, and "torch nuking" when the griefer destroys only torches. Most griefers' goals are to destroy as much land, buildings and creations as they can in order to make the server as unusable as possible.
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How To Prevent (with unmodified Minecraft) How To Prevent (with Bukkit/Spigot and plugins)