I originally just had Pacific Fighters, IL2 and Lock On that I got in a pack like five years ago, and I just got 1946 on steam. It took 4 hours to install on my stuffty-ass laptop. I would have put it on my desktop, but it's a mac. Anyway, it's bloody amazing! Just holy stuff I can use 225 planes! I think I'm getting a new laptop soon, so I might be able to get Cliffs of Dover, but I think the expansions are good enough.