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Changelog
Tough as Nails: A Curios Expansion Forge — Minecraft 1.20.1 — v3.1.1
What's new since 1.2.1
A long list of fixes plus the multi-loader rework that brought a Fabric/Quilt build alongside the Forge one.
Bug fixes • Universal Thermal Insulation curio works when equipped (was a silent no-op in 1.2.1 — onEquip was calling disableModifierForPlayer instead of enableModifierForPlayer). • Universal Thermal Insulation tooltip now matches actual behaviour (HOT -> WARM, ICY -> COLD; previously overclaimed "completely inhibits all forms of temperature damage"). • Temperature modifiers register exactly once at mod init instead of re-registering on every player login (could stack N-fold on long-running servers). • Per-player UUID maps clean up on logout (slow memory leak on long-running servers). • Firoze brewing recipe now uses Regulation Crystal as catalyst (previously expected a Glass Bottle, which never matched). • Regulation Crystal is no longer enchantable (a stray getEnchantmentValue override was returning 32). • mods.toml dependency cleanup: removed a duplicate toughasnails block and a dead curios_api block; pinned minimum versions for TaN ([9.2,)) and Curios ([5.14,)) so version mismatches give a clear error instead of a runtime crash. • Curios tag JSON files now use a proper boolean for "replace". • 3.1.1 hotfix: resolved a startup crash from CuriosIntegration registering on both event buses (3.1.0-only regression).
New features • Choose your slot system: Curios OR Accessories. The mod auto-detects at startup and registers items into whichever is installed. Accessories takes priority when both are installed, so you can't accidentally equip the same insulation twice. • Items decoupled from Curios: a Forge user with only Accessories installed (no Curios) loads cleanly. The slot-system code is a soft dependency. • Existing crafting chain unchanged: Regulation Circuit Shard -> Regulation Circuit -> Regulation Crystal -> Thermal Insulation curios. Firoze fluid still placeable; brewing-stand recipe still works (potion + Regulation Crystal -> Firoze Bucket).
Required dependencies
• Minecraft 1.20.1 • Forge 47.x (>= 47.4) • Tough as Nails >= 9.2 • Glitchcore >= 0.0.1.1 (Tough as Nails depends on this directly)
Optional — install ONE for the curio slot
• Accessories >= 1.0.0-beta48+1.20.1 (preferred when both installed) OR • Curios API >= 5.14.1+1.20.1
If neither is installed, the items register but can't be equipped into any slot — they sit in your inventory.
Java 17 required.





