# Labyrinth of Probability — Probability Paradox Roguelike

> Probability Paradox Roguelike (iPhone/iPad app by Fuji Bit Inc..)

- Source: https://appshunter.io/ios/app/labyrinth-of-probability/id6761645316 (this page in markdown: same URL + `.md`)
- Developer: [Fuji Bit Inc.](https://appshunter.io/developer/1874205957)
- Category: Games, Education, Card, Strategy
- Price: Free with in-app purchases
- Age rating: 9+
- Requires: iOS 17.0 · 38 MB
- Languages: English, Japanese
- Released: 2026-04-08
- Data updated: 2026-07-08
- User reviews in markdown: https://appshunter.io/ios/app/labyrinth-of-probability/id6761645316/reviews.md

## What is 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.

## Pricing and in-app purchases

Base price: Free.

**One-time purchases**

| Purchase | Price | Type |
| --- | --- | --- |
| Remove Ads | $1.99 | one-time |
| Chain Caster Build | $1.99 | one-time |



## Version history (last 5 releases)

### 3.0 — 2026-06-20

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

### 2.1 — 2026-05-11

We have fixed the bug.

### 1.2 — 2026-04-12

We have made adjustments to the game balance.

### 1.1 — 2026-04-08

We have made adjustments to the game balance.

### 1.0 — 2026-04-08

No release notes.

## More apps by Fuji Bit Inc.

- [SUUGAKU](https://appshunter.io/ios/app/suugaku/id6759102221)
- [BUTURAKU](https://appshunter.io/ios/app/buturaku/id6759213255)
- [PAKEDOU](https://appshunter.io/ios/app/pakedou/id6759820254)
- [OKURERUNA！](https://appshunter.io/ios/app/okureruna/id6759956971)
- [HARAKU](https://appshunter.io/ios/app/haraku/id6759958253)
- [KORAKU](https://appshunter.io/ios/app/koraku/id6760215571)

All apps by Fuji Bit Inc.: https://appshunter.io/developer/1874205957

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-07-08.*