The Forge NPC in the lobby (by the training grounds) is where gear becomes endgame gear. Five tabs — Upgrade, Reforge, Protect, Enhance and Crafting — plus the Update 1.5 Dismantle and Appraisal systems cover the entire gear economy. This guide walks each one and ends with the affix priority that actually decides your damage.
Upgrade: levels and PEN
Upgrading raises an item's level and Gear Score using materials and Coins: early tiers eat Iron Scrap and Gold Ore, later tiers Infernal Ore and rarity-graded Ingots plus Forge Stones.
- Levels run +1 through +15, then PRI, DUO, TRI, TET, PEN (PEN is the cap).
- Failures above +12 drop the item one level (e.g. 12 → 11). There is no published success-rate table — treat any specific percentage you see as an estimate.
Reforge: rerolling affixes
Reforge rerolls every affix on the item — your good lines too. Two rules from the developer changelog are firm:
- Reforging gear above +15 costs 2 Reforge Stones per attempt.
- Reforge Stones drop in Boss Rush at 5% / 15% / 30% per boss depending on its state (normal / empowered / enraged), and codes hand them out regularly.
Community testing describes reforge as gambling that eats Coins fast — one recorded session spent 10 Coins-per-attempt at a low tier and far more later. Reroll only when the item's other lines justify it.
Protect and Enhance
- Protect — a Protection Scroll prevents the level-loss penalty on a failed upgrade (it's consumed even on success). Scrolls come from Challenge Dungeon rewards.
- Enhance — boosts the success chance of your next upgrade attempt. Use it for the PRI→TET stretch where failures hurt.
Crafting: class items and the relic set
The Crafting tab makes ingots, cosmetics and — most importantly — three class items:
- Cursed King = 50x Sukuna Fragments
- Honored One = 50x Gojo Fragments
- Anti Magic = 50x Asta Fragments
The endgame relic set (King's Crown, Living Armor, Supernova Ring) also crafts here from Exotic Essence, Celestial Ore and Relic Shattered Armor family materials — the Supernova Ring recipe is the best documented (12x Celestial Ore + 15x Exotic Essence + 1x Exotic Ingot).
Gear Score and what it actually measures
Gear Score sums your worn, upgraded gear and class. It is a progression meter, not a hidden matchmaking value — and a higher number does not mean more damage by itself. Nerdschalk demonstrated that an affix-less Living Armor added exactly nothing to a damage sheet: affixes carry the build, so only upgrade gear you're wearing, with lines worth keeping.
Affix priority (where damage comes from)
Community consensus, in order:
- Your archetype's damage type (physical / ranged / magic)
- Critical Damage
- Skill Damage
- Attack Speed
- Armor Shred ("the boss killer outright")
Defensive and non-scaling lines are reforge fodder on damage pieces. Rings carry the most offensive lines per slot — upgrade rings first. See the stats guide for how these interact with base stats.
Update 1.5 systems
- Dismantle — break down gear to recover ~40% of its upgrade materials as ingots (a King's Crown returns 3 Exotic Ingots; a +15 Celestial ring returns 16). This killed the "hoard old gear" habit: dismantle anything replaced.
- Appraisal — spend Stars to reroll an item's base stats. Source descriptions of the exact flow differ; check the NPC in-game.
Warnings worth money
- Auto Forge gamepass (99 Robux) forges continuously until materials run out — it does not stop on failure. The free "Skip Forge animation" toggle is unrelated.
- VIP gamepass lists +5% forge success chance.
- The Forge refuses to run at a nearly-full inventory, and chest loot that overflows the ~50-item cap gets deleted — clean your bags first.
Putting it together
- Upgrade only worn gear with good affix lines, rings first.
- Push to +15 with Protect/Enhance support; beyond that, budget Reforge Stones at 2 per attempt.
- Reforge only pieces whose other lines are worth locking in.
- Dismantle everything you replace.
For what to build toward, the Build Finder outputs gear priorities per class and goal, and the farming guide covers gathering the materials.
Related tools
Sources & verification
- Community source
- Community source
- Community source
- Community source
- Community source