In this game, players lay the wooden divider between the #3 notches. They then choose the first three colored blocks listed on the guide and try to fit them in the marked off space. If successful, they move the wooden divider to notch #4, add the fourth colored block, and again, try to fit it into the allotted space. The more blocks added, the more stimulating the challenge becomes. The game develops spatial and patience skills. It received the Creative Toy Awards Seal of Excellence from Creative Child Magazine in 2004. The game "consists of high-quality wood pieces of bright colors, and the instruction booklet is in 12 languages and includes puzzle combinations as well as graph charts for younger children so that the puzzle is fun and challenging for children of different ages," VP of Sales Tracey McIlwaine of Family Games told TDmonthly.
— Katamino was on the Top 10 best seller list at Figpickels Toy Emporium in Coeur d’Alene, Idaho in late summer 2010. “It appeals to adults,” explained owner Brett Sommer. “We play it in the store and it's tough for anyone watching to resist giving it a try.”