Hogwarts Arithmancy Flash Cards

Interactive, themeable multiplication drill game with a Hogwarts aesthetic. Solve equations quickly to push back the “dementor” overlay, earn gold, buy cosmetics, and track mastery.

Highlights

• Progressive levels tied to specific fact sets; mastery is earned per fact.
• Dementor pressure overlay with growing dark circles and responsive glow on keypad/equation.
• Gold + shop for skins, trails, pets; golden snitch bonus events.
• Hint grid for misses, trouble-list focus, XP → queued fact practice (no auto-master).
• Persistent progress via localStorage.

Play

1. Open index.html in a browser (or serve the folder with any static server).
2. Tap numbers to answer; CAST SPELL submits, C clears, ⌫ deletes.
3. Earn gold/XP on correct answers; spend gold in the Student Trunk; track stats via the report card.

Development

• Tech: vanilla HTML/CSS/JS (no build step).
• Entry points: index.html, style.css, app.js.
• Save data key: arithmancyDataV17 in localStorage.

License

MIT License. See LICENSE for details.