Iseshima mystery annai: Itsuwari no Kuro shinnjyu
12 achievements
Ultra Rare×1
Very Rare×3
Rare×3
Uncommon×1
Common×4
About Iseshima mystery annai: Itsuwari no Kuro shinnjyu's achievements
Iseshima mystery annai: Itsuwari no Kuro shinnjyu has 12 Steam achievements, 1 of them ultra-rare — unlocked by under 5% of players. The rarest is "忍者カイ名人", earned by just 4.4% of players. Below is the complete achievement list with global rarity and a full achievement difficulty breakdown.
Rarest achievement
4.4%
of players earned "忍者カイ名人"
Community Ratings
No ratings yetDifficulty—
Easy → Brutal
Enjoyment—
Meh → Loved it
Grindiness—
No grind → Huge grind
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All Iseshima mystery annai: Itsuwari no Kuro shinnjyu achievements
12 achievements
Ultra Rare4.4%
Very Rare10.1%
Very Rare11.5%
Very Rare14.4%
Rare17.4%
Rare20.2%
Rare20.2%
Uncommon36.5%
Common52.0%
Common59.0%
Common63.0%
Common78.7%