Sunset Overdrive will be free to download and play for all Xbox Live Gold subscribers later today and tomorrow.

Microsoft's Major Nelson confirmed that for 24 hours starting at 9.01pm PT tonight or 12.01am ET / 5.01am GMT tomorrow morning, you'll be able to download the 23.17 GB file and play Insomniac's title for free, as part of the ongoing celebrations of the Xbox One's first birthday The full game is available in this period, and you'll earn achievements as you go along. Your progress will be saved too, meaning if you want to pick up the full game, you'll be able to continue where you left off. The 8-player Chaos Squad mode will also be available, once you progress far enough in the campaign to unlock it.Earlier today it was announced the Xbox One has passed the 1 million sold mark in the UK , while sales of the console have reportedly tripled since the console took a price cut in early November.

Luke Karmali is IGN UK News Editor. You too can revel in mediocrity by following him on Twitter