Labyrinth of Probability
Fuji Bit Inc. Games iPhoneiPadiPod touch
Labyrinth of Probability is a free Games app for iPhone and iPad by Fuji Bit Inc. Requires iOS 17.0. Updated June 20, 2026.
- Price
- Free
- on the App Store
- Size
- 38 MB
- Age 9+
- Updated
- Jun 20
- 2026 · v3.0
Screenshots
About Labyrinth of Probability
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.
What’s new
Version 3.0 · Updated June 20, 2026
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
App privacy
The developer, Fuji Bit Inc., reported these privacy practices to Apple.
Data Used to Track You
The following data may be used to track you across apps and websites owned by other companies:
- Identifiers: Device ID
- Usage Data: Product Interaction, Advertising Data
Data Linked to You
The following data, which may be collected and linked to your identity, may be used for the following purposes:
- Location: Coarse Location
- Identifiers: Device ID, User ID
- Usage Data: Product Interaction, Advertising Data
- Diagnostics: Crash Data, Performance Data
- Other Data: Other Data Types
- Contact Info: Email Address
Used for: Third-Party Advertising, Analytics, App Functionality
Data Not Linked to You
The following data, which may be collected but is not linked to your identity, may be used for the following purposes:
- Identifiers: User ID
Used for: Third-Party Advertising
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