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Game version 1.0 patch #25

Steam achievement icon for Hidden Pearl: Rift Valley

Mechanical Core X (Rift Valley Holy Ruins)

  • Ruin guardian
  • Cloud Mist Forest

Mechanical Core X (Rift Valley Holy Ruins) is a ruin guardian on Cloud Mist Forest: Rift Valley Holy Ruins, level 30.

Boss facts

Location
Rift Valley Holy Ruins
Level
30
Summon
None: fought where it stands.
Notes
Holy Ruins mask: Torch of Eternity.

Steam achievement

  • Hidden Pearl: Rift ValleyDefeat the Guardian of the Rift Valley ruins. Unlocked by 19.2% of Steam players.

Unlock rates read from the Steam achievement list on 12 November 2026; they count owners, not attempts.

Loot table

ItemQuantityShare
Worship Container118.2%
Tequila1–29.1%
Mead1–29.1%
Blood Activating Cream1–39.1%
Coagulation Cream19.1%
Copper Coin25–309.1%
Gold Coin4–89.1%
Hot Cocoa1–21.8%
Iced Cocoa1–21.8%
Juice1–21.8%
Yerba Mate1–21.8%
Mysterious Tisane11.8%
Leather2–41.8%
Fine Cloth4–81.8%
Refined Bandage4–81.8%
Refined Salt4–81.8%
Leather Rope4–81.8%
Tortilla2–41.8%
Pumpkin Salad2–41.8%
Cooked Potato2–41.8%
Silver Trinket4–81.8%
Deerskin2–51.8%

Game loot table "Boss #30" for the boss chest and death box, build 25955423. Share is each entry's part of the table weight per roll. Boss-specific materials and summon items can come from a separate table that is not listed here.

Same table: Blood Drinker.

Sources