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Do I need to install Puzzles Lib on both the client and the server?
Yes. Puzzles Lib is a shared library, so it must be present on both the client and the server for any mod that depends on it to work. If it's missing on either side, the dependent mod will fail to load or crash on connection.
How do I know which of my mods actually needs Puzzles Lib?
Check the dependencies listed on each mod's own page, or look at the crash log when a mod complains about a missing dependency. Puzzles Lib itself does nothing, so any effect you see in-game comes from a mod that lists it as a requirement.
Can I remove Puzzles Lib if I don't see it doing anything?
Only if no other installed mod depends on it. Removing it while a dependent mod is still present will cause that mod to fail to load, usually with a missing dependency error.
Why doesn't Puzzles Lib show up as a separate mod in my mod list?
It does appear in the mod list, but it has no config screen, no items, and no gameplay content of its own. If you see it listed but can't interact with it, that's expected behavior.
Does Puzzles Lib work on both Forge and Fabric?
Yes, that's its main purpose. It provides a shared abstraction layer so mods can support both loaders without duplicating logic, which is why you'll see it as a dependency on mods for either loader.
Will Puzzles Lib slow down my game or hurt performance?
It's designed to be lightweight and mostly provides utility classes and frameworks, so on its own it has minimal performance impact. Any lag you notice is far more likely to come from the mods that depend on it.
Can I use Puzzles Lib with other library mods at the same time?
Yes. Library mods like this are generally independent of each other, so having several installed alongside Puzzles Lib is normal and usually fine. Conflicts are rare and would typically come from the content mods, not the libraries.
My modpack crashes saying Puzzles Lib is missing even though I installed it. What's wrong?
The most common cause is a version mismatch between Puzzles Lib and the mod that requires it, or the file being placed in the wrong mods folder. Make sure the version matches what the dependent mod expects and that it's in the correct loader's mods directory.
Does Puzzles Lib add any commands or config options I can use?
No. It doesn't add player-facing commands, config screens, or gameplay toggles. Anything you can configure comes from the individual mods that use it as a dependency.
How do I update Puzzles Lib without breaking my existing world or mods?
Replace the old file with the new one in your mods folder and keep the same loader and game version. If a dependent mod requires a specific range, updating Puzzles Lib too far ahead of it can cause a crash, so update dependent mods alongside it when possible.
What does Puzzles Lib Mod actually do?
Puzzles Lib is a library mod, so it doesn't add any blocks, items, or gameplay on its own. It provides shared code and an abstraction layer that other mods use to run on both Forge and Fabric, which is why you only ever install it as a dependency.
Do I need to install Puzzles Lib on both client and server?
Yes, install it on both the client and the server. Since it's a dependency for other mods, the game will refuse to launch or the server will reject the connection if it's missing on either side.
How do I know if Puzzles Lib is working?
You won't see it in-game because it adds no content of its own. The real test is whether the mods that depend on it load and function correctly; if they do, Puzzles Lib is doing its job.
Puzzles Lib is crashing my game, what do I do?
Puzzles Lib itself rarely crashes on its own; the crash is almost always caused by a dependent mod or a version mismatch. Check that Puzzles Lib matches the Minecraft version and loader of the mods requiring it, and remove or update any mod that's out of sync.
Can I use Puzzles Lib without any other mods?
You can install it alone, but it will do nothing visible. It's designed to sit quietly in the background and only becomes useful when another mod depends on it.
Which mods need Puzzles Lib?
It's most commonly required by mods from the same ecosystem that share its frameworks, such as certain mob, structure, or utility mods. If a mod lists Puzzles Lib as a dependency, install it alongside that mod.
Does Puzzles Lib affect performance?
It's lightweight and adds no world content, so its own performance impact is negligible. Any lag you notice will come from the mods using it, not from Puzzles Lib itself.
Why does a mod say it needs Puzzles Lib but I can't find it?
Make sure you're searching for the exact name and that you're on the correct mod loader and Minecraft version. If it still doesn't appear, the dependent mod may require a specific build that isn't showing in your current search filters.
Can I remove Puzzles Lib if I don't think I'm using it?
Don't remove it unless you've also removed every mod that depends on it. Deleting it while dependent mods are still installed will cause those mods to fail to load or crash the game.
Is Puzzles Lib compatible with other library mods?
Yes, it's designed to coexist with other libraries and doesn't conflict with them. Problems usually only arise from version mismatches between Puzzles Lib and the mods that require it.







