For most DLCs you will have to add the winner on Steam, go to that DLC's store page and check if your new "friend" already owns the DLC.
Edit: There are very few DLCs that show up in an user's library.
Comment has been collapsed.
Take "Pillars of Eternity - The White March Part I" as an example. It does not show up in your library but you show up as owning the game in store.
"Planetary Annihilation - Digital Deluxe Add-on" is an example (afaik) of a DLC that shows up in libraries.
Comment has been collapsed.
Same thing happened to me once. I was looking for winner's unactivated win, SGTools said the winner might not have activated certain game. I checked the winner's library to find none. But when I checked the game's Steam page and under "XX friends already own this game:", he had his name in it.
Comment has been collapsed.
DLC's can be a bit irritating to deal with. Even SG Tools has issues checking these.
It's even worse for GoTY, Special Editions and Franchise packs of games or even season passes since the system can't read them for some reason.
Personally, if I see a DLC that I think I have, I check myself. Otherwise, I might remember if I have it or have a season pass.
Comment has been collapsed.
Like you do with a winner with a private Steam profile ask for a re-roll so that SG support can check your winner and either advise you to send the DLC or you get the re-roll.
Comment has been collapsed.
5,704 Comments - Last post 1 minute ago by hbarkas
3 Comments - Last post 4 minutes ago by DeKleineKabouter
4 Comments - Last post 6 minutes ago by DeKleineKabouter
116 Comments - Last post 1 hour ago by OneManArmyStar
18,681 Comments - Last post 2 hours ago by abelase
2,522 Comments - Last post 2 hours ago by ucho
10 Comments - Last post 5 hours ago by Matwyn
17 Comments - Last post 5 minutes ago by PunishedStig
475 Comments - Last post 6 minutes ago by gus09
84 Comments - Last post 7 minutes ago by gus09
65 Comments - Last post 54 minutes ago by sashadarko
6 Comments - Last post 1 hour ago by Lachdanan
1,880 Comments - Last post 1 hour ago by Channel28
33 Comments - Last post 5 hours ago by Yamaraus
How can i check a dlc's winner whether s/he has already had this dlc.
Comment has been collapsed.