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Project Spark offers gamers a number of ways to create games and edit them. The simplest method lets you pick a world type, character, and mission before being thrown into a dynamically generated world where you can begin playing or continue editing. Any games created by Project Spark can be shared with a community of gamers, or edited to customize them further. You can create a third-person shooter, 2D platformer, or even tower-defense games, and by default the game type is similar to Zelda or Fable-style action games. Everything is customizable, and Microsoft allows each element in a game to have its own brain to control movement and actions.

No Windows RT version yet, if at all

Project Spark can be controlled through the Xbox One controller, SmartGlass, or a traditional keyboard and mouse. Kinect can even be used to capture voice and motion to apply facial animations, body motion, or voice and sounds to custom characters, dialogue, and cinematic cutscenes. The beta version of the app is only launching on Windows 8.1 today, with some hefty specification requirements, and Windows RT users won’t be able to use Project Spark just yet, if at all in the future.

Microsoft's Project Spark has huge potential to open the Xbox One up to the masses and make game-creating a lot easier for amateurs who aren't yet ready to build full indie games using the ID@Xbox program. Sony's LittleBigPlanet has been extremely popular with fans over the years, making the leap to portable consoles like the Vita. While LittleBigPlanet emphasizes creation, it's a game at heart. Microsoft's approach differs slightly by pushing creation and customizability heavily.

While you’ll be able to create games that run on Xbox One from Project Spark, the beta version won’t launch on the Xbox One until early next year. Microsoft is rolling out Project Spark in limited numbers, too. The app will soon be listed on the Windows Store (it's restricted to certain regions right now), but you'll also need a special beta key once it's downloaded to activate and start building games. The beta for Windows 8.1 is preparation for the beta launch on Microsoft's new Xbox One console in January, ahead of a full launch later next year. Project Spark for Windows 8.1 will be made available in the Windows Store today, and you can request access to a beta key over at Microsoft's own Project Spark site.

http://www.theverge.com/2013/12/3/5169716/microsoft-project-spark-windows-8-1-beta-app

wow so "every console will be a devkit" meant "we have a game like little big planet"?

@theprof... No it means every console will be a devkit. People have already unlocked the developer menus on the xbox one and it allows you to activate devkit mode... But you need an ID@Xbox account and they still have not launched the program.

I will probably be pretty bad at it... But I am pretty intrigued by this.... Will definitely try it... Who knows I might surprise myself.

No, if you knew anything about the Xbox you would know that it can go into dev kit mode. This is a game for PC 360 and X1.

you don't think it's a little odd that MS promised every console was a devkit and now they're releasing a game that does that?

And yes, I actually do know about the devkit mode....yet nobody has been able to use it have they? No, they have not. In fact, MS specifically said "those settings are for developers and could brick the system if messed with".

1. ID@Xbox ‏@ID_Xbox 22 Nov

   Looks like Phil decided to maintain the mystery just a bit longer. We have an ID@Xbox announcement coming the week after Thanksgiving (US)!
2. Stadelhuber ‏@Stadelhuber 2 Dec

   @ID_Xbox This is the week after Thanksgiving, right? I think, you should lift the secret ;)
3. ID@Xbox ‏@ID_Xbox 2 Dec

   @Stadelhuber It is indeed and stay tuned. ;)

Well, there's still 5 more days left in the week. Let's see if there's a second announcement.

No, it meant "Eminem's first album still has lots of annoying songs with lots of stupid skits and Dr. Dre sucks BTW. Only the last few tracks were decent."

No, because this game was announced way before ID@Xbox 

This is cool, but unfortunately I am not in the beta group. :'(

@theprof. Do you realise that project spark was announced before the whole ID@Xbox program?

Microsoft are not releasing this instead of the devkit mode... It existed before the devkit mode. And the devkit mode can only be unlocked if you have an ID@Xbox account.... So no one can use it yet because the program has not launched... Shouldn't be hard to understand.