There are over 20 games available day one and it looks like a decent list. I just hope there are plenty of games coming for it in 2014. But still no actual launch date unfortunately. 

• Assassin's Creed IV Black Flag (Ubisoft, Ubisoft)
• Battlefield 4 (DICE, Electronic Arts)
• Call of Duty: Ghosts (Infinity Ward, Activision)
• Crimson Dragon (Grounding/Land Ho!, Microsoft Studios)
• Dead Rising 3 (Capcom Vancouver, Microsoft)
• FIFA 14 (EA Sports, Electronic Arts)
• Fighter Within (AMA Ltd., Ubisoft)
• Forza Motorsport 5 (Turn 10 Studios, Microsoft Studios)
• Just Dance 2014 (Ubisoft Paris, Ubisoft)
• Killer Instinct (Double Helix, Microsoft Studios)
• LEGO Marvel Super Heroes (TT Games, Warner Bros. Interactive)
• Lococycle (Twisted Pixel, Microsoft Studios)
• Madden NFL 25 (EA Sports, Electronic Arts)
• NBA 2K14 (Visual Concepts, 2K Sports)
• NBA LIVE 14 (EA Sports, Electronic Arts)
• Need for Speed: Rivals (Ghost Games, Electronic Arts)
• Peggle 2 (Popcap, Electronic Arts)
• Powerstar Golf (Zoe Mode, Microsoft Studios)
• Ryse: Son of Rome (Crytek, Microsoft Studios)
• Skylanders: Swap Force (Vicarious Visions, Activision)
• Watch Dogs (Ubisoft Montreal, Ubisoft)
• Zoo Tycoon (Frontier Developments Ltd., Microsoft Studios)
• Zumba Fitness: World Party (Zoë Mode, Majesco)

So late November launch, maybe around Black Friday?

Anyway, certainly a solid line-up even if it is lacking a must have exclusive, though Titanfall after 6 and Halo after 12 months should probably fix that

If I were to get an Xbox One, I'd probably pick up Ryse, NfS, Watch_Dogs, AC and get FIFA for free!

I didn't realise Zoo Tycoon was being made by Frontier Developments. That's actually a pretty good shout.

They made Rollercoaster Tycoon 3 (boo!) but also Thrillville 1 & 2, so at least they have some experience with the genre.

What is intereting though is that Watch Dogs isn't going to be released until the 19th in the US and 22nd in Europe so that might indicate when XBone is released