Genre: Puzzle

These puzzles range from slow and thoughtful to oddly frantic. Sand Blocks: Clear the Lines is a Tetris variant where each piece crumbles into hundreds of grains on landing, so you plan heaps of sand rather than tidy rows — there's an endless mode and a campaign with three stars per level. Three in a Row: Rings! has you placing rings of different sizes on a 3×3 board, clearing any line of three in one colour. Cards! is a straightforward memory test: flip matching pictures and avoid the blanks.

For spatial thinking, Cube Puzzle asks you to guide a cube to the exit by pushing other cubes along two planes, and its final levels are genuinely tough. Rotate the Pipe!, by contrast, is a calm one where you turn the whole level instead of steering the ball. If you enjoy thinking things through, the logic games collection has more brain teasers from other genres. No sign-up needed — the first level loads with the page.