Any touchscreen game is made or broken by its controls, and we're happy to report that 343 Industries has made some very solid touchscreen design decisions.

Halo: Spartan Assault has two onscreen thumb pads which can freely move across the screen, tracking the centre of your thumbs the entire time, ensuring that you never slip out of the control area.

This makes for a much more fluid and natural touch controls, with the left thumb controlling movement and the right taking care of aiming and firing weapons. A right thumb double-tap will also have your Spartan bash an Elite around the face with a melee attack, which is nice.

This system, coupled with the top-down camera angle, means that your thumbs will never obstruct the action – your Spartan is constantly locked centre-stage of the action. Just the way we like it.

If you're gaming on a Windows 8 tablet then you can also plug in an Xbox 360 controller or a keyboard and mouse for something a little more physical.