Monument Valley sells 1m

Ustwo’s optical illusion puzzlerMonument Valley has passed the one million downloads mark.

The game was originally released for iPad last year, but later came to iPhone and Android platforms. A third of all Android downloads for the game are via the Amazon app store, according toTechCrunch.

Players guide a silent princess through levels based on optical illusions, manipulating both the architecture and perspective of levels to create new paths.

Develop has more details.