Logic puzzles with something to show for them.
We make nonogram games where solving opens something more - a picture to paint, an object to build, a disc to piece together.
Assemble by Cyclogram
Picross logic on a disc. Every cell clued three ways, not two.
Color by Nonogram
Solve nonograms, and paint the picture they were hiding.
Build by Nonogram
Not a picture. An object.