As part of Microsoft's Gamescom 2015 Xbox briefing, the company showed off new trailers for three games coming to the Xbox One in 2015: it's own Forza Motorsport 6, Just Cause 3 from Square Enix and Rainbow Six: Siege from Ubisoft.
The racing sim game Forza Motorsport 6 will be released on September 15 as an Xbox One exclusive. Developer Turn 10 Studios will have over 450 cars in the game, and will support up to 24 players online in dedicated servers.
Just Cause 3, the open-world action game sequel from developer Avalanche Studios and publisher Square Enix, got a action-filled trailer today, and it's still due for release on December 1. The game will come with a free copy of the Xbox 360 version of Just Cause 2, which will be able to be played on the Xbox One via backwards compatibility.
Finally, the tactical shooter Rainbow Six: Siege from Ubisoft is coming on October 13 and the trailer again shows some impressive footage.