Pi Clicker
An idle clicker for π digits
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Free
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About
A game about digging out what comes after 3.1415...
Tap to earn compute (OPS), research algorithms to automate it, and spend your OPS to decode the digits of pi (π) one at a time. Decoded digits pile up on screen, and each one makes your computation a little faster.
■ Research real algorithms
Gregory–Leibniz series (1671), Machin's formula (1706), Monte Carlo (1949), FFT multiplication (1971), Chudnovsky series (1988) and more — researching real algorithms speeds up your computation. Each one comes with a short explanation, its formula, and references.
■ Pi digit tape
Read back the digits you decoded as a full-screen table.
■ Recomputation
Hit a wall, commission a new machine, and start over from 3.14. You keep a permanent bonus based on your deepest verified digit, so each run goes faster and deeper than the last.
■ Milestones from history
Archimedes's polygons, Shanks's hand computation, ENIAC's 2,037 digits — each depth you reach decodes another piece of history.
■ Idle-friendly
Computation continues while the app is closed.
・CRT terminal pixel UI (font: DotGothic16)
・28 Game Center achievements, 3 leaderboards
・English / Japanese
・No ads, no in-app purchases, no data collection
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What's New in Pi Clicker
2.0
September 21, 2026
Added "computer-era records" beyond 5,000 digits. ・Keep completing full verifications to retrace 30 real records, from NORC in 1954 to 314 trillion digits in 2025. Each record comes with the machine that set it, a short history note, and a perk ・Your past full verifications carry over as record progress. The full-verification bonus is now a one-time ×2 ・Rebalanced research so that every algorithm stays worth investing in late in a run ・Added a "Buy all" button that buys research from the cheapest up ・Added a header button that opens Game Center ・Added 5 achievements for the records ・Fixed celebration sounds playing on top of each other
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