Forge Mods for Minecraft 1.21
Browse 5,335 free Forge mods for Minecraft 1.21 — popular picks include Astrological (End Terrain & Biomes), Creeper no Break Blocks, Ecliptic Seasons.
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Astrological (End Terrain & Biomes)
Overhauling the end with new terrain generation and blocks.
Creeper no Break Blocks
A simple mod that prevents creepers from destroying blocks when they explode. Players still take damage
Ecliptic Seasons
Ecliptic Seasons adds a climate system based on the 24 solar terms, dynamically affecting weather, crops, and ecosystems throughout the year.
Boss Rifts
A long journey and and a difficult fight, an easy path home.
Hand Over Your Items
🤝 Adds to ability for in-game players to give each other itemstacks without dropping/tossing them.
Potion Bundles
Three potions can now be bound into bundles, to save inventory space.
Create: Blocks & Bogies
A mod that adds way too many types of wheelsets to choose from within Create
Simple Uncrafting Table
Add an Uncrafting Table for Fabric/NeoForge.
Enchantment Level Language Patch
`enchantment.level.1000`, get off!
OmniTool
OmniTools is a single, versatile tool that works with multiple mods. It combines the functions of various wrenches, making building, configuring, and managing blocks easier than ever.
Craftable Saplings
With this mod you can crafting all saplings and fungus
Avaritia Lite
Avaritia for newest version (but with bugs)
Horse Breeding Fix
Makes so the each stat of a baby horse is atleast as good as the of better parent.
Balanced Crates
Nifty Storage Blocks That Make Good Decorations.
[SBW] MCSP - ADDON
Add-on featuring vanilla-friendly styled military vehicles, tanks & more
Tensura Compat: Ice & Fire
A compatibility brigde between Tensura: Reincarnated and Ice & Fire.
Extra Create Recipe
Additional recipes for Create & other mods
Reforged (formerly Tiered)
Adds tiers/modifiers to tools and armors.
ChristmasColonies
Minecolonies Addon with a Winter Village Style
Gliding
Improving Minecraft's air transportation by adding vanilla-friendly gliders
Too Many Entities
Hide extra entities in order to reduce lag, especially with mob farms. The mobs still exist in the world, they are just not visible.
Guns, Rockets and Atomic Explosions
Guns, Rockets, C4 bombs with different variant - normal, incendiary, smoke, and of course, atomic explosion
This boat is MINE!
Allows you to get mob off your boat or something else by Shift + Right Click.
Recipe Generator
The Recipe Generator mod provides a visual recipe editor in Minecraft.
Dye Mob Dye
Allows using dye items on mobs other than sheep
Multi Arrow Effects [Multiple Effects on One Arrow]
Combine arrows with potion effects and carry multiple effects in a single shot.
Block Variants
Expand your building block selection
Colourful trees stone and water (dyeable color)
Adds colors for trees, bricks, stone, water, and many more blocks; dye in world and use the colourless variant
Colored Torches
A colored torch for every dye
Fabrication
A huge collection of vanilla tweaks and small features. Trident improvements, bugfixes, furnace minecart changes, note block enhancements, old lava, old logo, oh my!
Reskillable Reimagined
RPG Leveling Mod, 8 default skills with up to 8 custom skills configurable!
FTB Chunks x Xaero's Compat
This mod offers cross compatability between FTB Chunks and Xaero's Map Mods

Create: Let The Adventure Begin
A addon that implements many unique and balanced, create themed structures
Winter Overhaul
A mod which overhauls snowy biomes :)
Dracolotl
Ever wished that instead of hatching your dragon egg into a magnificent mount, you could hatch it into a draconic pet Axolotl? No? Well, here it is anyway.
[SBM] Charcoal Block
Charcoal version of the vanilla coal block