Minecraft Java 1.21 Mods
Browse 9 free mods for Minecraft Java 1.21 — popular picks include Create Simulated: End Sea Everywhere, No Sprint-Swimming, Poseidon - Underwater Survival.
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Create Simulated: End Sea Everywhere
Bare bones datapack that adds the End Sea from create simulated to other dimensions. Useful for Skyblock style modpacks.
No Sprint-Swimming
Disables fast movement in the water in survival and on servers, making oceans daunting again
Poseidon - Underwater Survival
Shipwrecked and stranded underwater. Breathe, build, and survive in a fully aquatic island world.
Drown Panic
"An immersive mod that enhances survival atmosphere underwater with a wide screen vignette (tunnel vision) and realistic heartbeat sounds when drowning."
Special Potions
Adds new powerful potions with unique abilities like Fire, Ocean, Wind, Warden, Ender, Speed, and Strength effects for survival and PvP gameplay.
Nuclear sewage-核污水
This is a data pack that can be used for island survival, players will get poison and nausea when they touch water, and after drinking the water lung potion, they will be immune to poison and nausea, and of course, players can take a boat without harm!
DrownedOverhaul
Drowned mobs can now grab and drag players underwater. A dangerous new twist to ocean survival!
OneWayExchanges
Give an item to a player by right clicking. Nice if on a skyblock or underwater/lava if you can't drop that item.
Cybernetics Mod (1.21.1) – Upgrade Your Body with Custom Robotic Implants
Cybernetics Mod adds mechanical body parts and futuristic implants to your survival world. It lets you replace your character's limbs and organs with robotic upgrades to gain new abilities. You can become a fast ninja, a strong fighter, or even an underwater explorer depending on the parts you choose. The world also gets new dangers, […]