Imagine spawning into a Minecraft world where the familiar green hills and peaceful villages have been replaced by a sprawling, crumbling metropolis stretching to the horizon. The Lost Cities Mod transforms your entire overworld into a massive abandoned city — complete with ruined skyscrapers, overgrown highways, and underground subway systems waiting to be explored. Created by McJty and downloaded over 7.3 million times, this mod has become one of the most popular world-generation overhauls in the Minecraft modding community.
Key Features
- Full city world generation — Select "Lost Cities" as your world type or access it as a standalone dimension (default ID 111), letting you keep your regular overworld intact while exploring the city on the side.
- Rich urban infrastructure — The mod generates highways, bridges, tunnels, subway systems, dungeons, spawners, and loot scattered throughout the city, giving every corner something worth investigating.
- Highly configurable — Add custom buildings, use modded building blocks, and fine-tune how cities are generated. Profile presets let you quickly switch between different city styles without manual tweaking.
- Server-friendly — The mod can run server-side only, meaning vanilla clients can connect without needing to install anything — ideal for multiplayer servers looking to offer a unique survival experience.
Screenshots
How to Install
- Download and install Minecraft Forge or NeoForge for your Minecraft version.
- Install the CompatLayer dependency if required for your version.
- Download The Lost Cities Mod from the link below and place the
.jarfile into your.minecraft/modsfolder. - Launch Minecraft, create a new world, and select "Lost Cities" as the world type.
Requirements
| Requirement | Details |
|---|---|
| Mod Loader | Forge or NeoForge |
| Dependencies | CompatLayer |
| Minecraft Version | 1.12.2 – 1.21.1 |
Pros & Cons
Pros
- Completely transforms the overworld into a unique survival experience
- Extensive configuration options for custom buildings and generation profiles
- Works server-side only — vanilla clients can join without the mod installed
- Active development with support from Minecraft 1.12.2 through 1.21.1
- Open-source under MIT license
Cons
- Requires CompatLayer as an additional dependency
- City generation replaces the entire overworld, which may not suit all playstyles
- Configuration can be complex for players unfamiliar with JSON-based mod settings
Download
Always download mods from official sources to stay safe.
What's New
- Ported to Minecraft 1.21.1 (version 9.4.0)
- Continued support for both Forge and NeoForge mod loaders
- Last updated on March 22, 2026
FAQ
Can I use The Lost Cities Mod as a separate dimension instead of replacing the overworld?
Yes. The mod supports a dedicated dimension (default ID 111), so you can keep the regular overworld and visit the lost city through a portal or dimension access method.
Does The Lost Cities Mod work on multiplayer servers?
It does. The mod can run server-side only, which means players using a vanilla Minecraft client can connect to your server without installing the mod themselves.
What mod loaders are supported?
The Lost Cities Mod supports both Minecraft Forge and NeoForge. Make sure to also install the CompatLayer dependency for full functionality.
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