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Minecraft Java 1.21 Mods

Browse 8 free mods for Minecraft Java 1.21 — popular picks include Mob AI Tweaks, Boss AI Tweaks, Waypoints and Bossbars.

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Mob AI Tweaks
1.21.11fabric

Mob AI Tweaks

Tweaks certain mob AIs, major or minor. Reworks the Wither and Ender Dragon boss fights!

1.4Mdownloads
Boss AI Tweaks
1.21.1neoforge

Boss AI Tweaks

Mob AI Tweaks but only the boss changes

6.1kdownloads
Waypoints and Bossbars
1.21

Waypoints and Bossbars

Adds raiders, trial mobs, skeleton horsemen and bosses to the locator bar and gives trial spawners and skeleton traps bossbars.

2.2kdownloads
Boss Checklist - Mob AI Tweaks Compatibility
1.21.1neoforge

Boss Checklist - Mob AI Tweaks Compatibility

Integrates the Ominous Phantomare boss as well as the reworked Elder Guardian and Ravager from Mob AI Tweaks as entries in the Boss Checklist mod.

1.3kdownloads
Mob Icons+
1.21

Mob Icons+

Hostile mobs become easier to recognize at a glance with clean pixel face icons for UI elements, boss bars, and compatible minimaps.

98downloads
BB's Bosses of Mass Destruction Tweaks Resource Pack (1.21.11, 1.20.1)
1.21.11

BB's Bosses of Mass Destruction Tweaks Resource Pack (1.21.11, 1.20.1)

BB's Bosses of Mass Destruction Tweaks Resource Pack restyles the monsters and items in the Bosses of Mass Destruction mod. It changes the textures and 3D models of the big enemies so they look totally different. This pack gives the giant creatures a fresh coat of paint to fit a custom art style. Features: Updated […]

Twilight Tweaks Mod (1.21.1, 1.20.1) – A True Final Boss to Conquer the Forest
1.21.1forge

Twilight Tweaks Mod (1.21.1, 1.20.1) – A True Final Boss to Conquer the Forest

Twilight Tweaks Mod adds configurable features to The Twilight Forest mod. This addon introduces a final boss spawner, giving the dimension a new ultimate challenge. By default, the spawner summons a very strong husk with reinforcements to fight. The mod also allows you to change what the spawner does, like summoning a different mob or […]

No Frills Mod (26.1.2, 1.21.11) – Hypixel QoL Toolkit
1.21.11

No Frills Mod (26.1.2, 1.21.11) – Hypixel QoL Toolkit

No Frills Mod offers a massive toolkit of UI tweaks, solvers, visual enhancements, and bug fixes for Hypixel Skyblock. Features: No loading screen, hidden overlays, fewer particles. Custom swing speed, disable fire overlay, clean viewmodel. Etherwarp highlight, price tooltips, rare mob alerts. Chronomatron, Ultrasequencer, Melody, Terminals, Devices. Track bosses, mobs, power, bobbers, and sea creatures. […]