This is 'Square Cells' a puzzle game on Steam for a couple bucks. I'll be sharing the rules along with my opinion/review.
It's essentially just Picross (aka Nonograms) mixed with Nurikabe. So if you like playing picross, nurikabe, and other logic puzzles, you'll really enjoy this one.
This game was made by Matthew Brown who also put out the Hex Cells puzzle games which I thought were amazing. I would highly recommend his logic puzzle games on Steam.
Here was my review of his original game, Hex Cells: • Review: Hexcells - Bet...
Check out some of my puzzle books on Amazon -
100 Sudoku Variants Puzzle Book: www.amazon.com...
100 Logic Puzzles Book - Volume 1: www.amazon.com...
100 Logic Puzzles Book - Volume 2: www.amazon.com...
100 Logic Puzzles Book - Volume 3: www.amazon.com...
Other puzzle tutorials: • Puzzles - Rules & Stra...