Macs are getting Steam. This is what it looks like.
As you can see, this pretty much looks like Steam running on a Mac, what with its windows and menus and such.
Surprisingly, there’s a store and access to community features. This sort of sums Steam up. Obviously, as any Mac user will tell you, this version is just “better”. Because it’s on a Mac.
No list of games, unfortunately. The “better” tag is unlikely to apply there.