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LC²H [Lost Cities: Multithreaded]
- By
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 :]
File Details
lc2h-3.2.0.jar
- R
- Jan 20, 2026
- 953.85 KB
- 428
- 1.20.1
- Forge
File Name
lc2h-3.2.0.jar
Supported Versions
- 1.20.1
Curse Maven Snippet
LC²H V3.2.0 | Pull-Based Core + DeceasedCraft Spawn Boost
V3.2.0 Overview
This update started life as a V3.1.1 hotfix, but after resolving long-standing performance and stability issues, it earned the full V3.2.0 release. The core change is a new pull-based execution model that stops the main thread from being flooded.
Core Performance: Pull-Based Execution
- Before: async systems pushed large bursts of work onto the main thread, causing queue floods, CPU spikes, and unstable loading
- Now: the main thread pulls work in small, tick-budgeted slices, only when it has room to do so
- This keeps TPS stable, avoids long blocking runs, and removes the runaway queue spam that caused huge CPU usage
- Distant Horizons sampling is now chunked into safe batches and drained over time instead of being forced in one heavy run
- Budgets scale dynamically based on tick lag, so heavy servers back off automatically instead of falling over
MSPT + CPU Load Improvements
- MSPT has been further stabilized under heavy load scenarios
- Most users previously seeing extremely high CPU usage should now see it drop significantly
- The Quantified API has been updated to enforce a hard 80% execution cap, preventing runaway task saturation
- This ensures background systems cannot starve the main thread, even under extreme worldgen or cleanup pressure
- Floating vegetation removal (vines, hanging blocks, etc.) now runs faster and with substantially lower CPU cost
- Cleanup passes are more aggressively batched and short-lived, reducing MSPT spikes during generation and pruning
DeceasedCraft Spawn Support (Biggest Compat Change)
- Full support for DeceasedCraft’s forceBuildingSpawn in V3.2.0
- Spawn search now uses an optimized city-first flow instead of brute chunk scanning
- Faster than base Lost Cities, fewer BuildingInfo hits, and dramatically less main-thread pressure
Distant Horizons + Loader Fixes
- Fixed DH crash on boot when DH classes aren’t present / fail to resolve
- Resolved Sinytra Connector compatibility issues
- Fixed a mixin application bug that could break startup in some packs
Stability + Code Safety
- Updated mod compilation to Java 21
- Fixed legacy code paths that caused unsafe parks and long stalls
- Additional edge-case hardening and cleanup across core systems