My version of a quarto game set. Includes all pieces and a board that doubles as the box. Can be printed with or without magnets to hold the pieces in place.

Designed and printed on my Neptune 3 Pro using default settings for normal quality.
Supports can be used on pieces if you print for magnets if your printer has issues with bridges.
You'll need to print the pieces twice in two different colors. I print the Quarto Game Divider.stl in a contrasting color to the bottom so that it stands out.