LEGO Harry Potter: Years 1-4

Build the adventure from Privet Drive to the Triwizard Tournament and experience the magic of the first four Harry Potter stories – LEGO style! Explore Hogwarts™ School of Witchcraft and Wizardry, learn spells, brew potions and relive the adventures like never before with tongue-in-cheek humor and creative customization that is unique to LEGO videogames!

Play as Harry Potter™, Ron Weasley™ and Hermione Granger™ as well as other favorite characters.
Explore the wizarding world including Hogwarts™ castle, Diagon Alley™, the Forbidden Forest and the village of Hogsmeade™.
Attend lessons, cast spells, mix potions, fly on broomsticks and complete tasks to earn house points.
Cast a spell with a friend and play through the first four stories as a team with Drop-in, Drop-out Co-Op play.

LEGO HARRY POTTER: YEARS 1-4 software © 2010 TT Games Publishing Ltd. Produced by TT Games under license from the LEGO Group. LEGO, the LEGO logo, the Brick and the Knob configurations and the Minifigure are trademarks of the LEGO Group. © 2010 The LEGO Group. Windows and the Windows Vista Start button are trademarks of the Microsoft group of companies, and 'Games for Windows' and the Windows Vista Start button logo are used under license from Microsoft. All other trademarks and copyrights are the property of their respective owners. All rights reserved. HARRY POTTER characters, names and related indicia are trademarks of and © Warner Bros. Entertainment Inc. Harry Potter Publishing Rights © JKR. WB GAMES LOGO, WB SHIELD: ™ & © Warner Bros. Entertainment Inc. (s10)

Operating system: (minimum & recommended):
- Windows XP/Vista
Processor:
- Minimum: Intel P4 1.8 GHz/AMD Athlon XP 2200+
- Recommended: Intel Core 2 Duo/AMD Athlon 64 2.8GHz
Memory:
- Minimum: 512MB
- Recommended: 2GB
Video:
- Minimum: ATU X1300/NVIDIA GeForce FX 5800 (256 MB RAM)
- Recommended: ATI HD 2900/NVIDIA GeForce 8800

To activate the Steam key you've received, follow the instructions below;

1. First up, open the Steam client. If you don't have it, simply click on "Install Steam".
2. Sign in to your Steam account. If you don't have one, click here to create a new one.
3. Click on the "ADD A GAME" button in the bottom corner of the client.
4. Then, select "Activate a product on Steam..."
5. Write down or copy-paste the activation key that you've received from Voidu in the window.
6. Your game is now visible in your library! Click on your "Library".
7. And finally, click on the game and select "Install" to start your download.