While it has become an extremely popular style of game over the last few years, tower defense titles have always struck me as a boring concept, personally. Perhaps it's my penchant for firing weapons at moving targets in first-person, but I can't really articulate my lack of enthusiasm for the strategy-style gameplay. My initial reaction to Toy Soldiers -- a tower defense game in a World War I setting -- in a behind-closed-doors Microsoft demo? Snore. Imagine my surprise, then, that I soon got genuinely excited to play the game when it lands sometime next year.