Those of you with an eye for the intricacies of futuristic warfare may be excited to learn that a demo for XCOM: Enemy Unknown is poised to arrive on the PlayStation Network in North America later today. European tacticians will have an extra 24 hours to swot up on Sun Tzu’s The Art of War, when the playable teaser targets overseas consoles tomorrow.

The game itself is available today in North America, and 12th October in Europe.