Square World is a tile-placement game from independent developer Sunil Patel. It's available now for both iOS and Android and promises a surprisingly deep experience that adheres to the old video game adage of 'easy to pick up, hard to master'.

The concept of the game is incredibly simple. All you have to do is fill in a grid with different tiles. However, depending on the placement of these tiles you will get a different number of points, meaning that you'll want to make sure you're placing the best combinations together to maximise your score.

The way they score points will differ. For instance, placing a tree tile next to one that has a lake will net you 3 points. Elsewhere, there are tiles with differing styles of totem on them. These will reward players with increasingly more points the more unique looking totems you manage to place in a column.

That might be quite easy if you could place tiles wherever you wanted. However, you can only place a tile that connects to the one you've previously placed in some way. Therefore it will require good planning to successfully place down good combinations of tiles to maximise your points.

Each run will then end when you can't place any more tiles on the grid. The developer says that the more you play the game the more secrets you'll discover that will influence your tactics going forward, which should eventually lead to more impressive high scores. They've even hinted that there's a hidden meta-game that elevates Square Worlds to a new level.

Square Worlds is available now over on the App Store and Google Play. It's a free-to-play game with a single IAP that unlocks more game modes for $0.99.

On the hunt for more puzzle games? Here are 25 of the best available for Android