
Labyrinth of Probability
Probability Paradox Roguelike
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Free
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About
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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What's New in Labyrinth of Probability
3.0
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
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$1.99
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