Technically alive. Forging it into armor grows a vitality-boosting membrane over the wearer's skin.
A living membrane that bulks up your health pool.
How the waterline works. The game counts Slime Ore's share of the total crucible: under 10% the trait is INACTIVE; 10–30% it scales linearly (SCALING); 30–35% is OPTIMAL (full 8%); past 35% it is OVERCAP — the trait stays maxed but the extra ores are wasted multiplier.
Exact top-up formula. Adding Δ ores also grows the total N, so the real formula is Δ₁₀ = ceil((N − 10n) / 9) for the 10% line and Δ₃₀ = ceil((3N − 10n) / 7) for the 30% sweet spot — never the naive "fill to 30%".
Worked example. Say your 50-ore crucible already holds 8 Slime Ore (16%, SCALING at 5.2%). To max out you need +10 more — landing at 18/60 = exactly 30%. And a tiny 30-ore forge holding 2 Slime Ore needs +2 to wake the trait (4/32 = 12.5%).
| Source | World | Chance |
|---|---|---|
| Mushroom Cluster | Stonewake's Cross | 19.1% (19.1%) |
Slime Membrane applies to armor — these solver picks pin Slime Ore at the 30% sweet spot on the best armor of its stage, the Ironclad Hauberk.
Trait coverage: Slime Ore 30% OPTIMAL
Highest score: 225.7 EHP on Ironclad Hauberk at 50.0% per forge — the no-compromise endgame recipe.
⚡ Load in CalculatorTrait coverage: Slime Ore 30% OPTIMAL
Closest distinct recipe to a clean 30% split (rounding waste 0.1 ores).
⚡ Load in CalculatorTrait coverage: Slime Ore 31% OPTIMAL
Built entirely from mined and crafted ores — no Tower of Hell drops or event items required.
⚡ Load in CalculatorEach recipe loads straight into the crucible with ores, RNG lock and target pre-set. Odds are per forge at the recipe's anvil world.
| Ore | Multiplier | Sell | Trait |
|---|---|---|---|
| Marble Chunk | 0.9x | $7 | — |
| Tinplate | 0.9x | $7 | — |
| Amber Chunk | 1x | $8 | — |
| Bananite | 0.85x | $6 | 🔥 Potassium Rush |
| Mushroomite | 0.8x | $6 | 🔥 Spore Cloud |
| Platinum | 0.8x | $6 | — |
| Aite | 1.1x | $8 | — |
| Bronzite Bar | 1.15x | $9 | — |
| Quartz Shard | 0.75x | $6 | — |
| Mudstone | 0.72x | $5 | — |
Slime Ore carries a 0.95x crucible multiplier — D tier, uncommon rarity — sourced from Stonewake's Cross. A crucible loaded entirely with Slime Ore forges at exactly 0.95x.
Slime Membrane caps at 30% of the crucible load: ceil(0.3 × N) ores — 15 Slime Ore in a 50-ore forge. At 10% it activates at 4%, reaching the full 8% at 30%.
Mushroom Cluster (Stonewake's Cross) at 19.1%.
Slime Ore is early-game filler: 0.95x multiplier is low, so swap it out once better ores from Stonewake's Cross or beyond are unlocked.