It's a bit confusing, Two Worlds II was an "Epic" editon a few weeks back in that "Insomnia promo", I bought it then, but now the one in my library has been renamed "Velvet" editon, and a new "Castle Defense" has appeared.

Now though, Two Worlds II Epic editon is not showing up as "already owned" due to the slight name change.
This could lead to an accidental "buying the same game twice"

Question is, are the "Epic" and "Velvet" editons exactly the same or does one have more than the other?

I think that the 'Epic' version is what you get when you install both 'Velvet' and 'Castle Defence' but haven't downloaded the new installers to check as I've still got the old installers on my HD.

I've also just checked the 'Two Worlds II Epic Edition' game page and mine is showing up as already owned - albeit in fairly small letters above the 'Add to cart' area - it says 'Buy item - owned'. If yours doesn't, contact support and they'll sort it. Hope this helps.

Thanks Pajama, seems like it is indeed the same game, just for some reason GOG have tweaked around with the names! GOG soon sorted out the bug not showing if you already own it - just a few hours after I'd mentioned it!

Glad it's all fixed :)

The confusion is added by a link in the description of the "Two Worlds II: Call of the Tenebrae" DLC, which looks like "Two Worlds II Velvet Edition", but leads to the "Two Worlds Epic Edition" page (https://www.gog.com/game/two_worlds).