✓ VerifiedGameplay & overhauls

LC²H [Lost Cities: Multithreaded]

by Admany · for Minecraft

LC2H V3 turbocharges The Lost Cities to massive cities, lightning-fast, silky smooth gameplay. Fully C²ME compatible. I'm proud of this, and hope everyone will enjoy using it :]

21KDownloads

5 mo agoLast updated

LicenseRef-BRSSLA-V1.5License

ForgeLoaders

Add to my server Download from Modrinth

About LC²H [Lost Cities: Multithreaded]

From Modrinth

LC2H V3 turbocharges The Lost Cities to massive cities, lightning-fast, silky smooth gameplay. Fully C²ME compatible. I'm proud of this, and hope everyone will enjoy using it :]

LC²H | Lost Cities: Multithreaded

Compatibility Notice

Officially supported and tested:

C2ME
Sinytra Connector (fixed sync + loader edge cases in V3.2.0)
Distant Horizons (boot crash fix + pull-based LOD sampling in V3.2.0)

These mods are validated with LC²H V3 and are marked as supported.

What Is LC²H

LC²H is a performance and stability rework layer for The Lost Cities.

V3 moves the full generator pipeline off the Minecraft main thread.

City generation is fully async, parallel, and safely applied.

V3.0.0 – An Engineering Marvel

A ground-up rebuild with:

Job-based generator API
Async scheduler
Parallel worker pools
Thread-safe translation layer
Multi-tier caching
Optional GPU acceleration

City Safe Structure System

Prevents structures inside cities
Removes floating vegetation
Cleans worldgen artifacts

Result: clean city skylines.

Config UI

Commands removed. Config is now in-game UI.

Path: Mods → LC2H → Config

Why V3 Is Fast

Pull-based main-thread apply
No queue flooding
Stable TPS
Predictable load times

Translation Layer

Makes Lost Cities thread-safe by isolating unsafe state.

Credits

McJty – creator of The Lost Cities.

LC²H – Version 3.2.2 Created by Admany – BlackRift Studios January 28, 2026

Highlights

From source data

Game versions

Supports 6 Minecraft versions, the newest being 1.20.6.

Loaders

Runs on Forge.

Footprint

Rated a light load on a server.

What kind of mod it is

From the catalog

Listed on Modrinth as “Mods”

Gameplay & overhauls

New mechanics, content and overhauls that change how the game plays.

Runs on your server

From source side support

Modrinth lists LC²H [Lost Cities: Multithreaded] as required on the server. Check its Modrinth page to see whether players need it too.

Compatibility

Game: Minecraft
Loaders: Forge
Runs on: Serverrequired on the server
Game versions: 1.20.6 and 5 earlier

Verified at the source

✓ModrinthOfficial listing, checked 2026-10-01Open ↗
✓AuthorAdmany, as published on Modrinth
✓LicenseLicenseRef-BRSSLA-V1.5Free

LC²H [Lost Cities: Multithreaded], answered

Generated from the mod’s own source data.

Do my players need to install LC²H [Lost Cities: Multithreaded]?

Modrinth lists LC²H [Lost Cities: Multithreaded] as required on the server. Check its Modrinth page to see whether players need it too.

Which loaders does it support?

Forge.

Is it free?

Yes. LC²H [Lost Cities: Multithreaded] is free to download from Modrinth. Its license is LicenseRef-BRSSLA-V1.5.

How do I add it to my Nxeon server?

Use “Add to a server” on this page, or open NxLabs from your dashboard. We install it, restart your server and switch it on.

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