Sorta! Cosmos is a free sorting game about size, distance and brightness. Drag illustrated cards of stars, planets and galaxies into the right order and learn how the world compares.
Each round asks a question, for example which card is biggest or fastest. A row of cards appears; drag them left and right into the correct order, then check your answer. Cards you get right are added to your collection.
By April31, a game studio for curious minds.