Sid Meier’s Civilization® VI: Leader Pass [Free with workaround for Anthology owners]

Sid Meier’s Civilization® VI: Leader Pass is free to all owners of the SID MEIER’S CIVILIZATION® VI ANTHOLOGY

So if you owned that package it should be added to your account without you doing anything.

But what if you are like me and you own all of the content of the Anthology but never purchased the Anthology bundle?

You can wait because they are working on fixing it. https://www.steamgifts.com/go/comment/4Gui296

or

You'll see the Sid Meier’s Civilization® VI: Leader Pass listed for 0.00 and an Add to Account button. So you try to add it to your account but it doesn't work. You try SteamDB. It doesn't work. You try purchasing the SID MEIER’S CIVILIZATION® VI ANTHOLOGY bundle because it's also 0.00 (you own all of the content). Again, it doesn't work. Says there is a problem with the purchase.

But someone put a review up with a solution and I tried it and it worked. I've seen other people purchase it this way in my Steam activity thread. I used the Steam app on my phone.

• Add this to your shopping cart SID MEIER’S CIVILIZATION® VI ANTHOLOGY. Make sure the price is 0.00 or you will be paying for it.
• Add anything else to your shopping cart (something cheap in pennies or something you want from the sale or whatever).
• Check out.
• You should now have the Sid Meier’s Civilization® VI: Leader Pass.
• Refund the extra game you purchased (or keep it).