Monument Valley is a fantastic experience that I think everyone should play. It is available for iPad and iPhone although it definitely benefits from the larger display of the iPad.
The gameplay is simple. You tap to move a character through a series of levels reminiscent of the MC Escher painting Relativity. However to get the character to the exit you must manipulate areas of the level in different ways to create a path. The way that the level changes generally toys with perspective and especially later in the game it can be a little mind-bending.
The tone of the game is sombre and calm, and yet slightly whimsical. The story of the game is told in subtle hints both in dialog and the design of some levels. There are only ten levels but each is very much worthy of being a print framed and hung on a wall. The audio and music are also well integrated into the game environment and makes the use of headphones well worth it.
You can buy it from the App Store for $3.99 US. For most people it is probably only a few hours of gameplay but I think it’s well worth it.
There’s also a behind the scenes video from the creators.
There is an interview with the creators in The Guardian where they mention both new levels and an Android version being worked on.