It's always nice to kick Monday off with a bit of a sale, and the intriguing-looking Sumeru has dropped in price to £1.99/$1.99 on iOS.

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In Sumeru you'll play as Yun, an overly-curious fellow who managed to get himself trapped inside a gem he'd picked up on his way home. Now stuck in Sumerian World, it's up to you to figure out how to help Yun break out of the gem and get back to his world.

With 43 scenes to figure out across six different levels, the mechanic of the game is quite interesting. Using a predetermined amount of usable to materials, you have to draw the solution to each puzzle. Whether that's drawing a bridge, making some stairs, or designing a botch-job hammer to break a door in, just make sure you don't run out of materials half-way through.

Grab Sumeru on the App Store now for £1.99/$1.99 (down from £2.99/$2.99).