Following on from the post I did back in November, based on new information I will be updating this list as time goes on:

First party studios:

343 Industries – Halo 5 (Xbox One)

Black Tusk Studios – Gears of War (Xbox One)

Lionhead – Fable Anniversary (Xbox 360)/Fable Legends and New IP (Xbox One)

Rare – Kinect Sports Rivals (Xbox One)

Turn10 – Forza Motorsport 5 – Post release DLC (Xbox One)

Team Dakota – Project Spark (Xbox One/PC)

Press Play – New IPs (Xbox One)

Twisted Pixel – New IP (Xbox One)

Lift London – 4 unannounced F2P games (Mobile/PC)

Xbox Entertainment Los Angeles – Halo TV series/TV content

Soho Productions – Upload Studio

Big Park – Apps for Xbox One

Lifestyle Entertainment – 1 vs 100 style download game

Playful Learning – Unknown

Good Science Studio – Unknown

Xbox Live Productions – Unknown

Second party (publishing relationships):

4J Studios – Minecraft (Xbox One)

Crytek – Ryse: Son of Rome DLC (Xbox One)

Capcom Vancouver – Dead Rising 3 DLC (Xbox One)

Capybara Games – Super TIME Force (Xbox 360/Xbox One)/Below (Xbox One)

Double Helix – Killer Instinct Season One/Two DLC (Xbox One)

Frontier Developments – Unknown (Just released Zoo Tycoon on Xbox 360/Xbox One)

Insomniac Games – Sunset Overdrive (Xbox One)

Playground Games – Forza Horizon 2 (Xbox One)

Remedy Entertainment – Quantum Break (Xbox One)

Ruffian Games – Unannounced UE4 Action Adventure game for Xbox One

Signal Studios – Ascend Hand of Kul (Xbox 360)/ID@Xbox game

Undead Labs – Multiple titles as part of multi-year deal with Microsoft Studios for Xbox One/PC

Vanguard Games – Halo: Spartan Assault (Xbox 360)

Zoe Mode – Powerstar Golf updates (Xbox One)

Speculation:

Grounding Inc/Land Ho! – Phantom Dust (Xbox One)

Hidden Path Entertainment

Ninja Theory

Platinum Games

Riot Games (League of Legends)

http://steverulez.co.uk/?p=11834

It's good to see MS trying to establish their own stable of studios that can pump out exclusive games. Though I largely game on Sony and Nintendo systems, I'd like for Xbox to have their own versions of must-have games that can only be had on their console. For me, Halo/Gears/Forza do not apply, as I'm not really into those types of games.

I really hope Remedy plans to make Alan Wake 2

New ip's are always welcomed.
This E3 should be fun.

Alan wake up ''echo'' lol i had to say that but yea hope for a Alan wake 2

Any information about what kind of new IP Lionhead is working on? I'm jealous over Capybara's title, they're a good developer.

Ninja Theory? What's that all about?

When was Ninja theory speculated?I hope that turns out to be true because they are a great dev. Also i hope that they are working with more Japanese devs like Valhalla,Grasshoper and Mistwalker.