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
