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The Codex

a mod that adds new complicated bosses with puzzles needed to beat them, you can find many dungeons in the overworld, each with a boss
by Kitnotcat
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12 downloads
0 likes
Updated Jul 6, 2026
0 hypes
Armor, Tools, and Weapons MCreator Mobs

THIS MOD IS STILL IN EARLY ALPHA, ONLY ONE BOSS HAS BEEN ADDED

The Codex is a large mod that will add many bosses, each with special mechanics and ways to beat them, right now the mod only adds M1L0, a boss that spawns in The Library, to beat M1L0 you first need to find the password hidden in the library, then enter it in the password table to get Malware, Right Click M1L0 with the Malware to defeat him, M1L0's drops are not yet added but will be added soon, The Library spawns in Plains, Snow Plains and Sunflower Plains

ALSO TO ANYONE WHO SEES THIS GO PLAY ON LOUNGE SMP, THE IP IS loungesmp.xyz

library_codex-1.0.0-neoforge-1.21.1.jar
MC 1.21.1, NeoForge, Server
Release 2026-07-04 Get

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