Minecraft Java 1.21 Mods
Browse 15 free mods for Minecraft Java 1.21 — popular picks include Faithless, Realistic Redstone (3D Redstone), PhonesCraft.
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Faithless
Faithful to vanilla, yet a complete overhaul! - Building, Redstone, Survival, PvP... All in one.
Realistic Redstone (3D Redstone)
Now redstone and blocks derived from it will have a 3D appearance!
PhonesCraft
A realistic phones mod in Minecraft.
northern wonderer
pvp/cpvp/redstone/survival/decorating/etc ultimate pack
Redstone: Rewired
It's a old pack from 2022, So I updated it with Repeaters, Comparators, and More!
Redstone Light Bulbs
Gives a light bulb look to redstone lamps!
Redstone Galore: Light Leak AddOn
Redstone Galore adds to the default Light Leak Experience by adding a multitude of features regarding the redstone aspect of the game, including blocks such as rails, pistons, and redstone lamps.
Minecraft HD(64x) Redstone Add-On
This is an add-on for the Minecraft HD (64x) resource pack, featuring QOL fixes for redstone blocks and items.
msp
Realistic orbital physics, rocket engineering, and space program progression for Minecraft. Build Create contraptions, launch them with real gravity/drag/re-entry, do science, unlock tech via FTB Quests.

Cat Factor: Redstone
A Data pack that changes some recipes of redstone componets with a realistic and cheap one.
Realistic Pistons
This project makes your pistons more realistic to give you a better redstone experience!
RLL (Realistic Lighting)
A Real life based Lighting, that includes Florescent,, LED, Halogen And CFL!
Ballistic Payload Ordnance Mod (1.21.1) – Drop Heavy Aerial Bombs on Enemy Bases
Ballistic Payload Ordnance Mod extends Create Big Cannons with redstone-activated aerial explosives, multi-bomb racks, and land mines. The mod brings realistic physics to falling projectiles for your moving airships and ground combat. You can drop water-ready ordnance, assemble timed bomb bundles, or place hidden traps around your base. It gives you realistic blast clouds, distant […]
Voxelized Furniture Mod (26.2, 1.21.1) – Decorate Cozy Modern Homes
Voxelized Furniture Mod fills your Minecraft world with detailed 3D furniture and modern household items. It gives you realistic chairs, kitchen counters, storage cabinets, and decorative blocks to build cozy homes. You can also interact with functional gadgets like wireless lights and working redstone showers in your survival world. Features: Sittable Chairs: Players can sit […]
Create Train Lights Mod (1.21.1, 1.20.1) – Light Up Your Railway Trips
Create Train Lights Mod extends Create with directional headlights and interior lighting fixtures for trains. The mod makes night rides look realistic by switching between white headlights and red tail lights automatically as your train reverses direction. You can also illuminate passenger cabins with interior lamps that work on moving contraptions. Features: Directional Lighting: Lights […]