Lots of people having problems downloading from Epic is what I've read... it actually seems it was never available there, at least for now and until release.
I just finished playing for about 10 hours, I couldn't save and exit to desktop. Very addicting once I got over the initial "WTF am I doing" learning curve. This isn't just a fantastic city builder, there's a lot more to it than that with the other nations, the diplomacy and exploration... quite an in depth game and of course I'm still learning. I think the replay value will be top notch and there's even multiplayer for icing on the cake. I'll be picking up a Steam card later today to preorder through Steam so I don't need to use Epic's Store. I loathe paying 80 Canadian bones for a game... but this is worth it IMO.
Can't wait for release