Thermo Fill
Pour mercury into thermometers from the bulb up so every row and column matches its number. One answer, found by pure logic.
Play nowHow to play
Controls
TapDragKeyboard←→↑↓ Space- Tap a cell to fill up to it.
- Tap the top again to mark it empty.
- Drag along a thermometer to set its level.
- Keys: arrows and Space.
About the game
Thermo Fill is a logic puzzle about thermometers. The grid is covered with thermometers of different lengths, and each one fills with mercury from its round bulb upward, without gaps. The numbers along the edges tell you how many filled cells each row and column holds. Your job is to find the one level for every thermometer that makes all the numbers match.
Thirty-six puzzles grow from four by four to eight by eight. Mercury pours in with a rising tone, and any row or column that goes over its number starts to boil, with bubbles and a red count. Undo is unlimited, you can mark cells as empty, and the hint fills a thermometer to the right spot and names the reason.
Free to play in your browser. No download, no sign-up. Works on phones, tablets and computers. Your progress is saved on this device.
