The Counting Kingdom, a mathematical learning game aimed at younger players, is out now on iOS for £2.99 / $4.99.

The game drops you in the role of the Apprentice, a wizard who uses the power of basic arithmetic to fight the monsters invading his kingdom.

Despite its child-friendly look and feel, The Counting Kingdom's simple, math-based puzzles have proven fun for adults as well.

In fact, The Counting Kingdom has been met with much acclaim, winning the Big Indie Pitch in March and selected as part of this year's PAX 10.

The Counting Kingdom was originally launched for PC and Mac in August.

You can buy it on its website, or grab the iOS version for £2.99 / $4.99.