Minecraft Java 1.21 Mods
Browse 11 free mods for Minecraft Java 1.21 — popular picks include Create: WaterWheel bearing, 简约生电优化 Simplicity Survival Optimization, 像素城_魔法核心整合包【PixelCity_MagicCore Modpack】.
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Create: WaterWheel bearing
Build massive rotating waterwheels for kinetic power generation! Custom waterwheels of any size using any solid blocks. Scales from 3x3 to 21x21 with automatic stress capacity scaling

简约生电优化 Simplicity Survival Optimization
简约的,生电整合包,更好的优化 simple, survival-assisted modpack, better optimizations
像素城_魔法核心整合包【PixelCity_MagicCore Modpack】
《像素城》魔法核心整合包(1.21.11版),专注生存红石工程。为自动化系统、多人性能优化及技术向Minecraft玩法量身打造。PixelCity MagicCore Modpack (1.21.11) for Survival Redstone Engineering. Optimized for automation systems, multiplayer performance, and technical Minecraft gameplay.
PistonQueue
⏰️ Powerful queue plugin for anarchy/survival servers.
MouCraft
MouCraft is a survival-RP modpack for Minecraft 1.21.1 using NeoForge. Designed for immersive multiplayer gameplay, it combines Create-based automation, town-building with MineColonies and survival mechanics.
MineColonie GRTQ
MineColonie GRTQ is a cozy colony-builder and automation modpack featuring MineColonies and Create—build a living town, design clever factories, and explore a polished survival experience with performance and QoL tweaks.
SpeakePie's Economy
SpeakePie's Economy is a Forge economy mod for Minecraft that adds physical money, multi-currency trading, vending machines, ATMs, wallets, and TeleStations for survival servers, city maps, and roleplay worlds.
MCPins
MCPins is the location mapping app for fans of Minecraft SMP, single-player survival, forever worlds, towns and nations, factions or anarchy.
Hearth & Horizons
Hearth & Horizon combines cozy homesteading with a immersive tech, from early survival and farming to electricity, factories, vehicles, and airships. Build a base, grow it into a working settlement, and eventually turn it into a connected industrial world.

The Roaring 20's Oasis
Mature steam, first gasoline, the cusp of electricity - a curated Create 6 survival era-pack: rail empires, oil fields, physics airships, industrialized enchanting, and ruins worth an expedition.
Megalopolis
Build the Modern World – One Immersive Survival City at a Time.