Sledgehammer
Modby LX_Gaming
Smashes the stupid out of the client & server.
Type
Mod
CurseForge Downloads
8,038,652
CurseForge ID
319175
Modrinth Downloads
80,815
Modrinth ID
QItC3hpi
Last Updated
Jul 28, 2026
Description
Sledgehammer utilises SpongePowered/Mixin to patch issues in Minecraft and Forge mods.
Features
- Configurable
- Compatible with Forge, SpongeForge, and SpongeVanilla
Client Patches
- Fix https://github.com/BluSunrize/ImmersiveEngineering/issues/3474
- Disable SearchTree reloading (Speeds up server connection process)
- Increase the maximum length for a WorldType name in SPacketJoinGame
Common Patches
- Prevent crashes due to invalid translation keys
- Make LazyLoad Thread-safe (Should fix MC-68381)
Server Patches
- Print a single message instead of a stacktrace for advancement errors
- Don't reload Advancements on World Load (Fixes Achievement issues on SkyFactory 4)
- Fix NullPointerException in BiomeProvider::findBiomePosition
- Prevent Grass turning into Dirt
- Prevent Ice turning into Water
- Prevent Totemic from changing the weather
-
Chunk Saving
- Alert players when a chunk fails to save
- Remove all Entities and TileEntities from chunks that fail to save
- Remove all blacklisted items from chunks that fail to save
- Generate a crash report and safely stops the server if a chunk fails to save
- Reduce Network usage by postponing flush
- Fix https://github.com/SpongePowered/SpongeCommon/issues/2013
- Redirect inventory debugging messages added by Sponge
- Fix MC-134716 - Player kick exploit
- Prevent or delete any items that attempt to teleport across dimensions
- Limit books to 50 pages with 255 characters for each
- Fix potential deadlock on shutdown
- Prevent ConcurrentModificationException in PlayerChunkMap
- Fix Item spawn packet exploit with ProjectRed
- Fix https://github.com/P3pp3rF1y/Reliquary/issues/370
- Redirect Ruins debugging messages
- Fix https://github.com/Daveyx0/PrimitiveMobs/issues/59 (Sponge only)
- Force permission check for OP based commands (Sponge only)
- Fix Misty World portal issues (Sponge only)
- Fix https://github.com/An-Sar/PrimalCore/issues/210 (Fixed in 0.6.56 according to Dev) (Sponge only)
- Prevent movement outside of the world border (Sponge only)
- Prevent sending blank death messages (Sponge only)
Dependencies
The jar containing '-sponge' does not contain these dependencies as they are already present in a Sponge environment.
Source
License
Sledgehammer is licensed under the Apache 2.0 license.
You are allowed to include this mod in your modpack.
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Included in Modpacks
Plutonium - 1.12.2 LTS