I'm trying to get you to win keys for games I won't play, I hope you like them... once won please claim your keys

Attention this game requires a manipulation if you already own the basic game, if you don't have Death Stranding you don't have to worry about it otherwise please follow the instructions ->

Here is a workaround in order to access both versions of the game from your Steam Launcher:

Click on Help and then Steam Support in the Steam desktop app.
Search for DEATH STRANDING.
Choose "I want to permanently remove this game from my account" and follow the instructions.
Activate the DEATH STRANDING DIRECTOR'S CUT Humble Choice code.
In order to restore your original copy of DEATH STRANDING to your Steam Library, please do the following:

Click on Help and then Steam Support in the Steam desktop app.
Search for DEATH STRANDING.
Choose "Can't find this game in my library".
Select Restore.
You will now have DEATH STRANDING and DEATH STRANDING DIRECTOR'S CUT in your Steam Library.

Source : https://support.505games.com/hc/en-us/articles/8334341739804