Enemy Technologies' sci-fi real-time strategy game, I of the Enemy, is now available for purchase and download from the Web site of publisher Matrix Games, with a boxed version of the game slated to hit later this week. Unlike many of its genre peers, I of the Enemy focuses on small unit tactics, with hassles like resource management handled automatically for the player. Before dropping $19.99 for the download, check out the single-player demo available now from GameSpot DLX.