Prompt Mastery

What it does

Master prompt engineering through 10 hand-crafted puzzles. Write a prompt, get instant AI feedback, level up your skills. Free to play — start with Level 01.

Ten puzzles. Each teaches a single prompting technique through the only way that actually sticks — by making you solve it yourself. Make the AI respond only in valid JSON — no prose, no fences. Every level opens with a precise outcome the AI must achieve — no fluff, no ambiguity. You're the engineer. Craft instructions using the technique the level is teaching. We grade the response against the goal. Pass to unlock what's next. Each level introduces exactly one new technique and stacks on the last. By Level 10 you've written a single prompt that classifies, extracts, and formats — in one shot. “A prompt is a contract. Learn to write one the AI willfrom promptmastery.dev

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