Popper
Pop every bubble
50 designs, no wifi needed
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
RowShift
Slide, stack, clear
Sliding block puzzle, no ads
Fuse
Pot the bombs
Pot every ball before it blows
Takeout
Knock every stone off the sheet
Curling puzzles, no timer