Forge Mods for Minecraft 1.21
Browse 805 free Forge mods for Minecraft 1.21 — popular picks include Health Indicator, Data API, Zombie Nightmare Expansions - Undead Horror Monsters.
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Health Indicator
Displays players' health below their names.
Data API
Tools to aid in datapack creation
Zombie Nightmare Expansions - Undead Horror Monsters
Adds various creepy undead entities with unique mechanics and intricate designs

Spawn Animations Compats
A datapack that adds compatibility for Spawn Animations with 50+ mods.
RedWolf's Music Expansion
💿 New Music Discs and mechanics to bring extra music to your world
Better Respawn
This mod adds a mechanic that lets you respawn near your death location.
Whaleborne
Adds a new hullback mob and pirate ship mechanic
Razor Tyrant : the Reign of Terror
This mod adds a giant robot mob that follows and slaughters the players.
Enchanted Golden Apple Addition
Add recipes, advancements,... for enchanted golden apples.
✨ Viner ✨
A highly configurable VeinMiner like forge mod that allows you to mass break ores and other useful resources by mining only one block!
Sit Anywhere!
Sit anywhere you want! Look down, double tap sneak and right click and you sit. As easy as that. Or you can just sit on stair/slab or via "/trigger sit". Work on vanilla servers, or any other setup.
Sky Artifacts (Change Weather & Time)
Change Time, Freeze Time, Stop and Start Rain & Thunder with powerful Artifacts!
Advanced Wall Climber API
A powerful API for Minecraft mods that enables advanced wall climbing mechanics for entities. This API allows mod developers to easily add spider-like wall climbing behavior to any mob.
Ember's Underground Rooms
New underground dungeons with varied rooms, treasure and enemies! Now with achievements!
Malfu Combat Animation
New Animation For Default Better Combat
No Enderman Grief
Stops enderman from pickung up blocks

Dynamic light
Mobs on fire and some items emit light! Like the OptiFine's dynamic light.
Bareback Horse Riding
🐎 Allows riding horses without a saddle with tweaked game mechanics.
Create: Cardboard Things
Fun addon that adds 9 cardboard-based items with unique mechanics.
Horde Nights
This adds Lunar Events every 30-45 days, some making mobs a lot more powerful, others remarkably tame. Can you survive them all?
AA4 Atlas
Antique Atlas 4 addon which adds the atlas item back.
Loyal Items
Your items will never despawn while waiting for your return after death

Orbital Strike Cannon Datapack & Mod
Orbital Strike Cannon Datapack inspired by Wemmbu from Unstable SMP.
Skyblock Infinite
Skyblock for any seed with Infinite void generation.
Unlimited Trading
Lets you trade infinitely without waiting for villagers or wandering traders to restock and prevents trades from locking.
Sleep
Change the amount of players to skip the night - Simple way to customize sleep! [sleep warp, displays sleeping players & more]

TNT Timer
Adds a timer above tnt which displays the time until it explodes.
Ability Upgrade - Cobblemon
Ability Capsule and Patch recipe for Cobblemon
Craftable
Craft the impossible with almost 50 new recipes! (Mounts of Mayhem Support!)
Craftable Nametag
Allows you to craft nametags!
Rotten Flesh Leather
Smoke rotten flesh into leather

Lucky Blocks
Lucky Blocks in Vanilla Minecraft! (no resourcepack!)
Nice Mobs Remastered
Randomised mob equipment, 10 new mobs, 3 new bosses, a new late game dimension and more
Netherracked
a Mod/Datapack that Adds Recipe for Netherrack in Minecraft (+ Create Mod)
Fortunate Ancient Debris
Fortune works on ancient debris! Use fortune-enchanted pickaxes on ancient debris for more netherite scraps
Bigger Stack Size
Stack size of 64 for all items!