Unsafe World Random Access Detector (NeoForge)

This is a mod that detects unsafe off-thread world random access, helping to find causes of "Accessing LegacyRandomSource from multiple threads" crash.

⬇ Download on CurseForge

The author built this one for Minecraft 1.21–1.21.5 on NeoForge. On other versions it may install and then do nothing.

Open in MCModsHub Get it on Google Play →

Verified by MCModsHub

Ships as unsafe-world-random-access-detector-1.1.3+neoforge.jar — drop this file into the mods folder
Download size: 22 KB
Download link checked 17 Aug 2026 — working

These come from our own check of the pack file, not from the source page.

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