Minecraft Java 1.21 Mods
Browse 6 free mods for Minecraft Java 1.21 — popular picks include ArmoreableMobs, IFramesTweaker, Social Player Mobs.
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ArmoreableMobs
Allows you give armor and items to an entity when it spawns using Craftweaker with gamestages support!

IFramesTweaker
Tweaks How Invincibility Frames are handled to make fast weapons function properly.
Social Player Mobs
Player mobs with behaviours, items / chest interactions and motives.
Boomerang
Mod that adds an 100% Working Boomerang (GeckoLib)
Lightning Lotad [Remastered]
This is a recreation of the 1.6.4 mod, "Lightning Lotad", brought to Minecraft 1.20.1 This mod adds new tools & weapons as well as new materials and blocks!
Two-Dimensional Foil
A mod that adds a two-dimensional foil weapon from The Three-Body Problem. Drop it to collapse blocks and creatures into an irreversible, mirror-like 2D plane within a configurable radius. Requires Fabric API.