(c) 2011 Valve Corporation. All rights reserved. Valve, the Valve logo, Portal, and the Portal logo are trademarks and/or registered trademarks of Valve Corporation in the United States and/or other countries.

(c) 2011 Valve Corporation. All rights reserved. Valve, the Valve logo, Portal, and the Portal logo are trademarks and/or registered trademarks of Valve Corporation in the United States and/or other countries.