LEGO Harry Potter: Years 1-4 has already been released on PlayStation 3, Wii, PC, Xbox 360, Nintendo DS, iOS.
You can already buy and download the game or pre-order it. Prices start from 1.06$. Check out the list of stores where you can buy LEGO Harry Potter: Years 1-4 and compare prices.

All release dates for LEGO Harry Potter: Years 1-4

USA:
  • PlayStation 3 → Game released → June 29, 2010
  • Wii → Game released → June 29, 2010
  • PC → Game released → June 25, 2010
  • Xbox 360 → Game released → June 29, 2010

Germany:
  • PlayStation 3 → Game released → July 15, 2011
  • PC → Game released → June 15, 2011
  • Xbox 360 → Game released → June 15, 2011

France:
  • Wii → Game released → June 24, 2010
  • PC → Game released → June 24, 2010

United Kingdom:
  • Wii → Game released → June 25, 2010

The whole world:
  • Nintendo DS → Game released → June 29, 2010
  • iOS → Game released → November 19, 2010

Explanation of statuses in release dates

Game in development

The game has been officially announced and is under development for the specified platforms. In this case, an exact or estimated release date is provided.

Game released

The game has been released, it is available for purchase or download on the specified platforms.

Not officially announced

The game has not been officially announced yet, but the likelihood of it is high. A possible release date and likely platforms are indicated.

Early Access

The game has been released in early access. This means that developers have released an unfinished, but playable version of the game, available to anyone interested. Usually, such versions are available at a reduced price or even for free, and the game is more expensive upon release. However, be prepared to encounter bugs, as development is still ongoing.

Beta testing

The game is being tested, it is available to everyone, or to a limited number of people. Tests can be closed or open. By participating in the beta test, players can try out the project shortly before its release.

Frozen

The game was in development for some time, but now it's frozen. Perhaps someday the developers will return and finish the game, but more often than not, the project is simply shut down.

Game canceled

The game's development has been definitively and irrevocably canceled. This status signifies the project's demise.

The project is closed

The game has faded into obscurity. What is currently happening with the project is unknown, but it is most likely shut down.