Crypto games

Quick, free puzzles that run in your browser — read a crypto chart, or out-think a deadlock. No sign-up, no download.

• Chartle — Daily Crypto Chart Game

  Guess the coin and the year from a real, unlabelled crypto price chart. A new puzzle every day — five tries, no sign-up, and a result you can share.

• Daily Bug — Spot the Bug in Real Code

  One real code snippet a day with exactly one bug. Click the line you think is wrong — five tries, no sign-up, and a result you can share.

• Tech Debt — Ship Fast, Pay Later

  Sixty seconds to ship as much as you can. Every feature adds tech debt, and debt slows you down. Hire, buy tooling, or refactor — no sign-up.

• Legacy Code — Inherit a Codebase Nobody Wants

  You inherit an undocumented system. Twelve decisions, four numbers, nine endings — a short narrative game about tech debt, trust and burnout.

• Vanity Forge — Address Hunt & Hardware Benchmark

  Hunt an Ethereum address starting with your word using every core on your machine — and find out how many keys per second it really does.

• GC — Be the Garbage Collector

  Sweep every object the roots can no longer reach, before the heap fills. Free something still live and it is a segfault. A game about reachability.

• Deadlock — Lock Ordering Puzzle

  Reorder how threads take their locks so none can wait on each other forever. A puzzle that teaches the global lock ordering rule every engineer learns the hard way.

• ECC Billiards — Elliptic Curve Puzzle Game

  Reach the target point on a real elliptic curve using only doubling and addition. A puzzle game that teaches the double-and-add algorithm behind crypto keys.

• Higher or Lower — Crypto Price Game

  Was the coin worth more or less on the next date? An endless streak game built on real crypto price history. No sign-up.