Minecraft Java 1.21 Mods
Browse 15 free mods for Minecraft Java 1.21 — popular picks include JoaCarpet, Redstone Crusaders TURBO !, Redstone Robot.
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JoaCarpet
A small carpet extension mod with useful features for redstone and storage tech (+some minor survival tweaks)
Redstone Crusaders TURBO !
A Jojo's Bizarre Adventure mod. Starring Stands with pushed combat and combo potential !
Redstone Robot
Redstone robots that recharge with redstone, can follow you, attack hostiles mobs with bows and a iron swords!
Cobbromon
This modpack blends the creature-collecting adventure of Cobblemon with the mechanical creativity of Create. Explore the world, build clever contraptions, and grow your team—all in a seamless mix of exploration and engineering.
Peaceful Silverfish
Peaceful Silverfish lets silverfish spawn from vanilla infested stone even on Peaceful. Great for Create farms and contraptions, but works perfect in vanilla too. Includes an option to mute silverfish sounds so your base stays quiet.
Sculk Eye
Adds a new Sculk Eye Block - scans entities of a given type in a given radius and emits redstone signal based on the count
Enhanced Spawners: Chambers of Control
Enhanced Spawners: Chambers of Control lets players upgrade and customize mob spawners using survival items, with full redstone control and spawn egg integration — all without commands or GUIs. Designed for clean, technical mob farms and dungeon systems.
Biznesmod
This mod adds new biomes, a new villager proffesion, new mechanics (upgradable abilities, collecting iron dust to make iron ingots, etc...), new custom structures (10+), a TNT cannon which shoots tnt where you look and some new redstone components.
Keep My Creak
A datapack for your creaking-using redstone contraptions
Player Detector
Redstone block that detects if a player is standing on it
BioLock Scanner
BioLock Scanner is a NeoForge 1.21.1 Minecraft mod that adds a player-only redstone scanner for secure doors, bases, and automation builds. It can be mounted on floors or walls, has a configurable detection radius, and prevents mobs from triggering
RedstoneSpawnersReloaded
RedstoneSpawnersReloaded is a very simple plugin which makes Mob Spawners toggleable via a redstone signal.
Suspicious Clock
This datapack is bout one of Eider's yt videos about google translate mobs chnaging theb ehavior of mobs too. The thing i was talking is a clock man form it, becuase it drops a sus clock. Now you craft it with 4 clocks and redstone!
Literally Chunk Loader Mod (1.21.4, 1.20.1) – Simplifying Minecraft Automation
Literally Chunk Loader Mod ensures that specific chunks stay active even when you are far away, allowing processes like redstone mechanisms and mob farms to continue functioning. Features: Vanilla Friendly: Seamlessly integrates with the vanilla Minecraft experience. Simplicity: Easy to use with no complex setups. Just place a block in the desired chunk. Utility: Keeps […]
Redstone Robot (Fabric/Forge/NeoForge/Quilt)
Redstone robots that recharge with redstone, can follow you, attack hostiles mobs with bows and a iron swords!