ekimarcher

I know this is a couple days old and it looks like you're up and running already but just so the full info is here in case someone finds it in the future.

If you buy the game through the website, you are asked to link your steam account. Once you do this, your steam account gets the game activated the same as though you bought it on steam but you don't actually get given a key to use in steam. This lets you download, play and use cloud save functions through steam exactly as if you had purchased it on steam.

I think that the only real difference is that you have to go through our refund policy instead of steam's if you do end up wanting to return it. And I should probably know what the difference here is but I'm not sure off the top of my head.