Stigol and Chillingo's swish picture-hunting puzzler Find The Line comes out tonight for iOS.

It involves constructing line art pictures out of fragments that you scroll through.

In each of its 200 puzzles, you select a line of your choice, then use a slider on the bottom of the screen to scroll that line through all of its possible positions.

Once you think you've found where that line goes, you move onto the next until, eventually, you piece together the picture.

The pictures are all grouped under certain themes, such as animals, architecture, and toys.

There are also stars and keys to find hidden inside the picture that you should come across while scrolling. These unlock more content for you to play through.

Find The Line is a free to play game, and so it offers IAPs in exchange for hints. You'll be able to download it on the UK and US App Stores at midnight.