XCOM UFO Defence is free on the Humble Store right now

Rarely does a week go by when some publisher or retailer isn't giving away a game for free. Spending nothing in exchange for something is great, and this is an especially nice offer: the Humble Store is giving away X-COM: UFO Defense, or for those outside of North America, UFO: Enemy Unknown.

It's the first instalment in the XCOM series, of course, and be forewarned that as far as I can remember it was the first game to make me incredibly angry. The offer is valid for another day and a half, so you'd best go and grab it now before you forget.

Shaun Prescott is the Australian editor of PC Gamer. With over ten years experience covering the games industry, his work has appeared on GamesRadar+, TechRadar, The Guardian, PLAY Magazine, the Sydney Morning Herald, and more. Specific interests include indie games, obscure Metroidvanias, speedrunning, experimental games and FPSs. He thinks Lulu by Metallica and Lou Reed is an all-time classic that will receive its due critical reappraisal one day.