Number Duel
Order of operations · 30 levels
Play spell cards to drop the monster to exactly 0.
How to play
- The monster's health is a number. Tap a card (or drag it onto the monster) to cast it on that number: −5, ÷3, ×2, +4 …
- Win by landing health on exactly 0. A Strike bigger than the health is overkill and can't be played; Split only works when it divides evenly.
- Later: cards cost mana (blue gems), a shield soaks up the next Strike, ⇄ Mirror swaps the digits (42 → 24) and √ Wither takes a square root.
Work backwards: the last card must be a Strike equal to the health left. From level 20 there is exactly one winning order.
Teeter, Tint and Echo Heist are free starters. Other games unlock through earned game choices or permanent packs. Your progress stays in the browser; optional sign-in saves it to your website account.