Original sentence: According to Toy Retail Sales Tracking (TRST) sales data, the game has sold over 1.4 million units in the United States (US) (as of October 2008).Gun also won numerous awards, including GameSpy's "Xbox 360 Action Game of the Year".It was well received by professional game reviewers and Activision noted that Gun was the highest selling new video game property at the time of its release.Since October 13, 2006, the game has also been available to buy on Steam, the content delivery platform owned by Valve Corporation,
Edited sentence: According to Toy Retail Sales Tracking (TRST) sales data, the game has sold over 1.4 million units in the US (as of October 2008).It was well received by professional game reviewers and Activision noted that Gun sold the best among new video game properties.Since October 13, 2006, the game has also been available to buy on Valve's content delivery platform, Steam.The game won awards, most notable GameSpy's "Xbox 360 Action Game of the Year"