
InstantSimCleanup is a forced server optimization plugin that reduces lag by aggressively clearing inactive zones. Instead of relying on a standard timer, it uses a chunk distance control mechanic to remove everything in areas where there are no players.
How it works: Out-of-bound chunk clearing: The plugin instantly removes absolutely all items and unnecessary entities that are located further than the chunk radius specified in the config (outside the active gameplay zone).
Zero chat spam: The clearing process happens automatically and silently, without any annoying countdowns or chat warnings.
Safe for important mobs: The system completely ignores and will NOT clear passive (domestic) animals, as well as any mobs named with a Name Tag.
- Ships as InstantSimCleanup-1.0.jar — drop this file into the mods folder
- Download size: 5 KB
- Download link checked 24 Aug 2026 — working
These come from our own check of the pack file, not from the source page.