Alexandria Lib Wiki & Guide

Alexandria Lib does not add any blocks, items, or mobs to the game. Because it only provides shared background code for other mods, nothing from it will show up in creative tabs or item lists.

Open the Mods menu from the Minecraft title screen and check that Alexandria Lib appears in your active mod list. As long as the game reaches the main menu without stopping on a missing dependency screen, it is working properly.

No, it runs quietly in the background and does not alter regular survival mechanics. Any gameplay changes you see come from the separate content mods that rely on it.

Move the Alexandria Lib file out of your mods folder temporarily and start the game. If Minecraft loads to the title screen without showing a missing dependency warning, none of your remaining mods use it and you can leave it out.

Minecraft will halt during startup and display a missing dependency screen naming Alexandria Lib alongside the mod that needs it. Moving Alexandria Lib back into your mods folder and restarting the game resolves the warning.

Because Alexandria Lib adds no blocks, items, or mobs of its own, taking it out will not erase physical builds or items from your save. Just make sure you have already removed every mod that depends on it, or the game will refuse to load.

Alexandria Lib must be present wherever a mod that depends on it is running, which for most multiplayer setups means both the server and every player's client. Keeping both sides matched avoids connection errors when joining.

No, it adds no active mobs or world generation to slow your game down. Instead, it prevents multiple mods from running duplicate code in your folder, helping keep your setup light and stable.

No player setup is required once it is loaded in your mods folder. It works automatically in the background whenever another mod relies on its tools.