Chest armor Epic

Sulfossil Cuirass硫黄化石の胸当て

This volatile mass latches its plating onto your body. It feels ready to retaliate.

In-game description
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Sulfossil Cuirass stats and effects

Level Lv.18 (up to Lv.20 when upgraded)
Effects when equipped
  • +57 max healthLv.20: +63 max health
  • +31 armorLv.20: +34 armor
  • +18% explosion damageLv.20: +20% explosion damage
Durability 100
Set bonus

Sulfossil Helmet, Sulfossil Cuirass, Sulfossil Boots

  • 2 pieces: +25% explosion damage
  • 3 pieces: Deals 74 damage to all nearby enemies when taking damage

Sulfossil Armor Set guide (stats, recipes, upgrade costs, rating) · List of armor sets

Compare in the rankings: Best armor Upgrading Gear

Unless a note on the page says otherwise, numbers are read from the game files of Core Keeper 1.3.0.6 (prefabs, configuration files, drop tables and the game's program) and calculated by this site, including upgraded (per-level) values, sell prices and mana costs. Names and descriptions are the game's official English text. Only reinforcing materials, minion and pet attacks and some food values are based on the Core Keeper Wiki (Fandom) data (CC BY-SA 3.0). Core Keeper and its images are © Pugstorm. This is an unofficial fan site.

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What is Sulfossil Cuirass? Features and uses

Sulfossil Cuirass is an epic item in Core Keeper (Chest armor). Its base level is 18, and it gives +57 max health and more. It can be obtained from Urschleim.

Sulfossil Cuirass key points (from the game data)

  • Upgrading to level 20 raises its effects: +57 max health → +63, +31 armor → +34, +18% explosion damage → +20%.
  • Upgrading from level 18 to 20 costs 1,044 Ancient Coins plus bars.
  • Durability: 100. Reinforcing it at the Salvage and Repair Station doubles durability.
  • Part of a 3-piece set. Wearing 2 pieces gives "+25% explosion damage" and more.
  • Best source: Urschleim — 56.4% chance per kill.
  • Sells to merchants for 626 Ancient Coins.

Calculated and summarized by this site from the game data (1.3.0.6).

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What you get from salvaging Sulfossil Cuirass (Salvage and Repair Station)

Sulfossil Cuirass can be salvaged. Salvaging it gives the following items.

For each material, the amount is "amount used to craft × 0.49 (lower when durability is down, 0.3 at 0 durability) × the item's multiplier", and a fraction is the chance of one more (2.4 means 2, with a 40% chance of 3). The range is from 0 durability to full durability (items without durability always count as full). Scrap parts are a fixed number set by the item level. All items that can be salvaged are listed in salvaging.

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How to get Sulfossil Cuirass (Boss drop)

Boss drop (1)

SourceTypeBiomeAmountChance
Urschleim Boss drop — 1 56.4%28.6% from the guaranteed group, 9.4% per regular roll

"Chance" is the chance to get at least one of this item per try (opening one chest, defeating one enemy, one catch). A "guaranteed group" is the group of a chest or boss from which exactly one item always drops; it does not mean this item always drops (the chance of it being picked from that group is shown in small text). Only items that always drop are marked "Guaranteed". Fishing means catches with a fishing rod, separate from enemy and boss drops. Calculated from the game's drop tables (Conf/Loot, 1.3.0.6) the same way the game rolls them.