Popper
Pop every bubble
Relaxing popping fun
StarGrid
StarGrid
one star per row, column, and region
A Star Battle logic puzzle: place exactly one star in every row, column, and coloured region without letting any two touch. 200 puzzles across seven difficulty tiers, free to download, one-time unlock, no ads, no subscription.
How StarGrid works
- Place exactly one star in every row, every column, and every coloured region.
- No two stars can touch, even diagonally — that's the rule that makes each solution unique.
- 200 puzzles across seven difficulty tiers, from beginner grids to genuinely hard ones.
- Free to download, one-time unlock, no ads, no subscription.
Comparisons
More from ST Studios
Songhub
Chord charts, sheet music & setlists
Your song library, organized and synced
Fuse
Pot the bombs
Pot the bombs before they boom
Takeout
Knock every stone off the sheet
A curling knockout puzzle: swipe to slide your stone in a straight line until it hits a bumper or bumps an enemy stone out of play. Knock every stone out, then rest on the target centre to win.
Coming soon