Hourglass
Time sums · 30 levels
Boil an egg for exactly 9 minutes with a 4 and a 7.
How to play
- Tap a glass to flip it (a half-run glass flips with its sand). Next ⏩ jumps to the moment a glass runs out.
- You can only act at the start and at those moments: flip glasses, put the egg in, take it out.
- Boil the egg for exactly 🥚 minutes and serve it by ⏰. Later levels limit your flips ↻.
The egg doesn't have to go in at the start: a 3 and a 5 make 2 minutes. And a glass flipped halfway runs for exactly as long as it has already run.
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.