Threaded Horizons

Concurrent chunk management for Minecraft 1.18.2 / Forge — an experimental mod exploring threaded chunk generation, chunk I/O, lighting and server scheduling.

What it does

• Concurrent chunk generation with world-generation locking
• Asynchronous region/chunk I/O with dirty-save tracking
• Threaded lighting and chunk task scheduling
• Optional no-tick view distance
• Narrower worldgen write/lock radius
• In-game runtime diagnostics for executor queues

All features are config-gated, and optional integrations fail closed rather than crashing.

Requirements

• Minecraft 1.18.2
• Forge 40.3.11+ (40.x line)
• Java 17
• Client and server (install on both for multiplayer)

Commands

• /threadedhorizons status — executor queue depths and task counters
• /threadedhorizons notick — no-tick chunk counts (feature must be enabled)
• /threadedhorizons debug mobcaps — development diagnostics

Known limitations

• No performance promise. A matched comparison measured mean debug TPS of 8.95 with this mod and 12.62 without it across two paired runs — workload-specific, not a general claim.
• Not production-tested: client launch, multiplayer login, retained-world reopening and broad modpack compatibility were not established.
• Async chunk request is retired on this port (it deadlocked /tp).
• Fabric-only companions (BetterEnd, BetterNether, Charm, Terra, The Bumblezone) are not ported.
• Incubator-vector acceleration is intentionally excluded on Java 17.

Support

Report bugs at https://github.com/Vonix-Network/threaded-horizons/issues — include Minecraft/Forge/Java versions, mod list, config and sanitized logs.

License: MIT