Yesterday, I was playing a game on steam, and I noticed that I had Dota 2. I never bought the game, and I was never even interested in it. It is $29.99 USD and I haven't spent that much on a single game. Most of my games were free or less than $10.00.Anyway, I never downloaded a free trial and steam never gave me a free trial for 3 days. When I was looking at more information on the game, I noticed that all of my friends on steam had it too, even though they never bought it either. Has anybody else noticed this?