Galaxy Split
Split the night sky into galaxies around their stars. Each galaxy must look the same after a half turn around its star.
Play nowHow to play


Controls
TapDragKeyboard←→↑↓ Space- Drag from a star across cells to paint its galaxy.
- Tap a cell to clear it.
- Keys: arrows and Space.
About the game
Galaxy Split is a starry logic puzzle, also known as Tentai Show or Spiral Galaxies. The night sky holds a number of stars, some in the middle of a cell, some on an edge or a corner. Split the whole sky into galaxies, one around each star, so that every galaxy looks exactly the same after a half turn around its star.
Thirty-six skies grow from five by five to ten by ten, each with one answer found by logic. While you drag, the mirror half of your stroke appears as a ghost on the other side of the star, and a galaxy that is closed and perfectly balanced lights up in its own colour with twinkling stars. Undo is unlimited and the hint fills a cell and its mirror.
Free to play in your browser. No download, no sign-up. Works on phones, tablets and computers. Your progress is saved on this device.











