Stone0.05x
Unofficial fan tool
The Forge Calculator
Plan weapon and armor crafts with ore multipliers, trait thresholds, and transparent data notes. Start with a beginner preset or enter the ores you have.
Rules/data version May 2026 Reviewed after major updates No login · local calculations
Copper0.25x
Iron0.54x
Coal0.14x
Tin0.18x
Silver0.68x
Gold0.84x
Crystal0.95x
Sapphire1.10x
Ruby1.25x
Emerald1.35x
Obsidian1.50x
Onyx1.65x
Mythril1.75x
Titanium1.85x
Void Ore2.25x
Meteorite2.75x
Adamantite3.20x
How the planner reads a craft
The calculator keeps the formula visible: selected ores become a weighted multiplier, the largest material share becomes the main material, and trait progress is shown against the public 10% and 30% thresholds.
Average multiplier
Each ore contributes its multiplier times quantity. The total is divided by all selected ores.
Craft band
Weapon and armor outputs are grouped into planning bands until exact probability tables are checked again.
Trait thresholds
Trait shares show whether a material identity is below 10%, active at 10%, near 30%, or active at 30%.
Planner pages
Use the focused pages when you want a narrower view of the same local rules and ore table.
Weapon Calculator
Open the same calculator in weapon mode with short notes for craft-tier planning.
Plan weaponsArmor Calculator
Start in armor mode and watch material identity and trait thresholds while testing mixes.
Plan armorInventory Optimizer
Enter the ores you have and get a few local-only craft suggestions with confidence labels.
Open optimizerOre Multipliers
Scan the current local ore table by rarity, world, multiplier, traits, and data status.
View oresMethodology
Read exactly how the calculator handles formulas, estimates, and update uncertainty.
Read methodology