Two new free games have been added to Microsoft's Xbox One backwards compatibility.

Microsoft's Xbox One

Microsoft's Xbox One

2002's 'Syberia' and 2007's 'Boom Boom Rocket' are the latest video games to be added to the programme, which enables Xbox gamers to play their old 360 games on the Xbox One console.

Xbox spokesperson Larry Hryb, who is known by his alter ego Major Nelson, made the announcement on Twitter, saying: "Boom Boom Rocket and Syberia are coming to Xbox One Backward Compatibility (sic)."

In May Nelson announced that 'Deus Ex: Human Revolution Director's Cut', 'Final Fight: Double Impact', 'Faery: Legends of Avalon', 'Frogger 2', and 'Puzzlegeddon' had joined Microsoft's backwards compatibility scheme.

And, earlier this month, 'Red Dead Redemption' was added to the list.

There are now more than 170 games in the Xbox One's backwards compatibility library including 'Halo', 'Soul Calibur II HD' and 'The King of Fighters '98 Ultimate Match'.