A free, playful password puzzle that teaches real security — all in your browser, your password never leaves your device.
🧩Stacking absurd rules — 16 progressively ridiculous, conflicting rules unlock one by one — digit sums, Roman numerals, the current time, emoji, periodic-table symbols and more.
✅Instant live validation — Every rule shows pass or fail the moment you type, with friendly hints that tell you exactly how far off you are.
📚Real security lessons — Knowledge cards pop in as you progress, teaching genuine tips: length over complexity, no reuse, password managers, and more.
🔬True strength check — On winning, your final password gets a real entropy estimate plus weak-pattern detection and concrete improvement advice.