Labyrinth of Probability

Probability Paradox Roguelike

Free · In‑App Purchases · Designed for iPad. Not verified for macOS.

8 probability paradoxes become cards. Defeat enemies with math—Monty Hall, Birthday Paradox & more. 9 rooms, 5 builds, 4 difficulties, plus online leaderboards. Labyrinth of Probability is a card-battle roguelike where you experience probability paradoxes firsthand. 8 famous probability paradoxes become cards in your hand. Choose your fate, open doors, and use probability to fight through 9 rooms of enemies. [8 PROBABILITY PARADOXES] Monty Hall Problem, Birthday Paradox, Bertrand's Box, Simpson's Paradox, False Positive Problem, Two Envelope Problem, Galileo's Dice, HH vs HT. Textbook puzzles become attack and support cards. [A ROLL OF FATE] Roll the dice at the start of each run and choose between two fates. Probability Blessing, Probability Curse, Wind of Bias, Mark of Ordeal, Law of Convergence, Path of Calm — your choice shapes the entire run. [4 DOOR TYPES] Choose between two doors each room. Fierce (guaranteed reward), Double Strike (play 2 cards), Healing (counter -1 + HP recovery), Observation (see your roll first). [ENEMY WEAKNESSES & RESISTANCES] 5 enemy types have category weaknesses and resistances. Exploit conditional probability against Goblins, use trials against Dragons. The final boss has random weaknesses each run, with a hint available from room 8. [5 BUILDS] Strategist (self-damage -1 + door penalty halved), Gambler (+3% for low-rate cards), Analyst (success self-damage -2), Paradoxer (+8% events, Lv2 reward cards), Chain Caster (premium, +8% attack after support). Match your playstyle. [4 DIFFICULTY TIERS] Normal, Hard, Expert, Master. HP and damage scale with difficulty. Higher tiers mean bigger score bonuses. S through D rank evaluation. [ONLINE LEADERBOARDS] Compete for high scores with players worldwide. Rankings by difficulty (Normal, Hard, Expert, Master) and overall, across all-time, daily, weekly, and monthly periods. Just set a nickname to join, and link your Apple ID to carry your records across devices and reinstalls. Unlink anytime. [STRATEGIC RESULT CHOICES] After defeating an enemy: get greedy or pass safely? When low on HP in Normal mode, a failed card can also open a once-per-room chance to endure or cut your losses. [DEEP REPLAYABILITY] - Score history tracks your adventures - Random events: healing springs, curse traps, treasure chests, dark merchants - Card upgrades via auto-merge of duplicates - Rate fluctuation +/-5% (or +/-10% with Wind of Bias) every room Master probability. Master the labyrinth.

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v3.0.0 — Online leaderboards and account linking - Added online leaderboards: rankings by difficulty (Normal, Hard, Expert, Master) and overall, across all-time, daily, weekly, and monthly periods to compete with players worldwide - Just set a nickname to join - Link your Apple ID to carry your leaderboard records across device changes and reinstalls (unlink anytime) - Privacy policy now describes data handling for leaderboards and account linking

Version 3.0

The developer, Fuji Bit Inc., indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .

  • Data Used to Track You

    The following data may be used to track you across apps and websites owned by other companies:

    • Identifiers
    • Usage Data

  • Data Linked to You

    The following data may be collected and linked to your identity:

    • Contact Info
    • Identifiers
    • Usage Data

  • Data Not Linked to You

    The following data may be collected but it is not linked to your identity:

    • Identifiers
    • Usage Data
    • Diagnostics

Privacy practices may vary, for example, based on the features you use or your age. Learn More

Accessibility

The developer has not yet indicated which accessibility features this app supports. Learn More

Information

Seller
Fuji Bit Inc.
Size
39.4 MB
Category
Card
Compatibility
Requires iOS 17.0 or later.
  • iPhone
    Requires iOS 17.0 or later.
  • iPad
    Requires iPadOS 17.0 or later.
  • Mac
    Requires macOS 14.0 or later and a Mac with Apple M1 chip or later.
  • Apple Vision
    Requires visionOS 1.0 or later.
Languages
English and Japanese
Age Rating
9+
  • 9+
  • Learn More
  • Infrequent
    Cartoon or Fantasy Violence
    Horror/Fear Themes

    Contains
    Advertising
In-App Purchases
Yes
Copyright
© 2026 Fuji Bit
  • Developer Website
  • Privacy Policy

    • More by Fuji Bit Inc.

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