Minecraft Java 1.21 Mods
Browse 86 free mods for Minecraft Java 1.21 — popular picks include Yuushya Townscape [Forge/Fabric], Berezka API for Abandoned city buildings, Pathfinding Edition For MineColonies.
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Yuushya Townscape [Forge/Fabric]
Using 800+ building materials to create your own townscape
Berezka API for Abandoned city buildings
This mod adds config and plugins support to Apocalypse structures: Abandoned city buildings mod
Pathfinding Edition For MineColonies
Struggling with MineColonies’ AI? Install this addon to greatly improve your city-building experience!
Urban Decor
Urban Decor is a decorative mod designed to enchance the building experience of users by adding unique decoration blocks.
Abandoned city buildings: Updated
Ports "Apocalypse structures: Abandoned city buildings" to more versions
SimCity Expansion
Building expansion-pack manager for New-Simukraft-1.21.1
LoginTo
A complete authentication solution for Minecraft servers, providing secure login, database storage, premium autologin and secure otp code with qrcode
AuctionHousePlus
an /ah command where players can list their items.
KantoBlocks for Cobblemon
480+ blocks for building Kanto-style towns, routes, caves, interiors, and adventure maps in Minecraft.
Necropolis - Ancient City Overhaul
Uses new features, building revamps, and concept art inspiration to enhance and enlarge ancient cities.

City Pack
🏙️ City Pack Overhaul – Light & Fun! Step into a tiny but vibrant city world! Perfect for RPG lovers, this pack adds: Roads, buildings, and small urban life Simple NPCs and shops Light RPG elements without slowing your game Fast, smooth,
KantoBlocks
480+ blocks for building Kanto-style towns, routes, caves, interiors, and adventure maps in Minecraft.
Nations & Villagers – AI Reborn
Town building, AI integration and hole inteactive city system.
Twisted Towns ( Public Server Pack )
Twisted Towns is a MineColonies-focused modpack that blends light tech and medium magic, offering a balanced and immersive civilization-building experience for both casual and dedicated players.
OcelotSign
A MishangUC traffic expansion mod featuring standard Chinese mainland road signs, custom sign blocks with pillars, and road markings for realistic city building.
CityUtils
Customizable roads that you can rotate around, street signs like stop signs and speed limit signs, so much to help your city building process
Odysseum
A modpack focused on making Minecraft feel as deep and adventurous as possible. This includes tech, dungeon, dimension, city building, and QoL mods.
Caseyy's Create Adventure
A lightweight modpack blending Create’s mechanical magic with MineColonies’ charming town-building for a cozy, creative experience.
LD's Fortified Towns And Cities
Have you ever wanted properly walled-in villages? Well, this datapack adds in those, and a few more structures. Included are fortified cities, towns with small walls and forts, forlorn castles, cultist monasteries, and lone estates.
FUN CITY CRAFT - Amethyst Edition
Cars, planes, weapons and building supplies
I can't Build
A Modpack to Build a Town without Building It Yourself
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.
DTM Building and Colonizing
A Modpack for everyone who wants to play casual Vanilla with more building elements and cool colonizing / city elements
Colonies Modpack
Fun MineColonies modpack to enhance your citybuilding addiction for MC1.21.1
JulianVillager's City
JulianVillager's City is a project by JulianVillager. It is created for building a city with houses, a railway, and several small towns and villages.
Infrastructure Plus
Infrastructure Plus is a mod focused on realistic infrastructure and urban development in Minecraft. It continuously expands the game with new building assets for detailed and authentic environments. (Best use as MTR Addon)
ModernDoors - RESOURCE PACK
Retextures doors and trapdoors for urban building!
JSMySQLFix
JSMySQLFix is an innovative plugin designed for the Velocity proxy environment that ensures seamless MySQL database connectivity by automatically downloading and embedding the MySQL JDBC drivers.
UrbanForma-neo
This mod introduces a variety of decorative blocks, including diverse road elements and building blocks in multiple colors.
Raidt Night
PvP and citybuilding project with friends.
Founding Realms - Millénaire + MineColonies Town Building Adventure
Modpack made by friends for friends to combine a couple of our favourite mods.
Ferrora
Ferrora is a community-driven server pack built for catching, battling, and building in Minecraft. Featuring Cobblemon, player-run gyms, towns, breeding, and classic mechanics like Mega Evolution and Dynamax.
Minecolonies : Origins
Minecolonies : Origins is a lightweight modpack focused on town-building and unique character abilities. It features a heavy layer of performance optimizations and Quality of Life improvements to ensure a smooth and enjoyable experience.
MHDF-Tools
MHDF-Tools | Dream Tools | ✨ A lightweight portable high performance Bukkit base plugin ✨MHDF-Tools | 梦之工具 | ✨一款轻量化便携高性能的Bukkit基础插件✨
The Created Pack
Build intricate, beautiful factories. Create houses, cars, airships, and towns... But above all, Never Forget the Gear.
CityParts
A selection of building blocks themed around city construction