Minecraft Java 1.21 Mods
Browse 25 free mods for Minecraft Java 1.21 — popular picks include oSzoukaua's: Realistic Spiders, Dont Get Hurt, Project: Explosive.
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oSzoukaua's: Realistic Spiders
This pack makes spiders more realistic! and much cuter!
Dont Get Hurt
A more realistic life and healthcare
Project: Explosive
Adds realistic explosions while keeping Minecraft’s vanilla style.

Wooden Stairs Crafts
Modify the recipe for wooden stairs to make it more realistic.

Realistic Cakes
Makes the cake item edible, with durability for each slice stage.
Slow Mining
Reduces mining speed, making progression slower and more realistic.
Dead Body
The Most Advanced Realistic Lootable GUI Corpses Graves and Dead Bodies for Mobs and Players in Minecraft! + PVP Logging Solutions & More
IBREALISTIC
The Unofficial fork of OpenBoatUtils, original by o7moon. This mod added MORE realistic rally aspects for IBREAL or another server
Smoke and Bitterness
The mod adds cigarettes and cigars. Suitable for realistic and noir builds.
Third Law
This mod (jokingly) adds newton's third law to minecraft! When you throw an item or shoot a projectile you get pushed back with (un)realistic force!
Physical Explosions
This datapack makes explosions physical and realistic! 💥
Jenga Mod
A recreation of that one systemzee video where they have jenga with realistic physics.
Realistic Days
This datapack makes minecraft days/nights last 12 real-life hours. A dreadful addition to your next 100 days world...
RealMobScale
Realistic animal scaling based on real measurements | light-weight plugin.
More Realism (MR)
This project helps you experience your world more realistically.
Accurate Mob Sizes
The Accurate Mob Sizes datapack makes most real-life mobs closer to their actual size, making Minecraft feel a bit more realistic.
WMTM | Way More than Minecraft!
Trying to make Minecraft more realistic and more harder.
Heavy Anvil
Makes anvils heavy / realistic.
Realistic Heights
Makes your real length, your minecraft length.
twinkle popo mod
it adds twinkle popo realistic pikachu and realistic hellokity
OUCH!!!
Make magma realistic and actually deal a little damage while holding.
Bob's Datapack
This datapack is basically a few weird addons that I added to minecraft while I was sick and off my meds. It adds (semi) realistic injuries for players and mobs and a few other things.
MDiabetes
A unique and fully configurable plugin that simulates diabetes in Minecraft with custom recipes, realistic mechanics, and immersive gameplay systems.
LitePhysics
Realistic collapse, explosions, debris, item physics, and mob ragdolls make destruction feel alive. Builds fall naturally, blasts launch blocks, debris bounces, items tumble, and mobs slide, float, and fade away.
Realistic Sable / Create Aeronautisc Air Pressure
This datapack changes Sable's default air pressure to instead resemble real world air pressure, dropping exponentially less and less over time. (I have a separate datapack which does this at a 1 to 10 ratio instead)