This issue seems like this ticket.
https://www.steamgifts.com/discussion/CRvot/total-war-shogun-2-dlc-giveaways-cannot-be-entered
Comment has been collapsed.
9 Comments - Last post 24 minutes ago by BloodyRo
2 Comments - Last post 2 hours ago by Berion83
43 Comments - Last post 3 hours ago by Krizader
14 Comments - Last post 3 hours ago by IronKnightAquila
15,461 Comments - Last post 5 hours ago by Channel28
8 Comments - Last post 6 hours ago by Axelflox
19 Comments - Last post 7 hours ago by Foxhack
131 Comments - Last post 6 minutes ago by Gelweo
129 Comments - Last post 22 minutes ago by Aydaylin
1,201 Comments - Last post 39 minutes ago by Gelweo
20 Comments - Last post 55 minutes ago by matsalkoshek
2,321 Comments - Last post 1 hour ago by ZYrushforce
847 Comments - Last post 1 hour ago by BroilKing
254 Comments - Last post 1 hour ago by matsalkoshek
From my giveaway:
https://www.steamgifts.com/giveaway/SqKcA/total-war-shogun-2-rise-of-the-samurai-campaign
No one can enter it. It says "Missing Base Game".
As gangnamstyle suggests, SteamDB seems to have two AppID's for the base game (34330, 201270).
refer: https://steamdb.info/app/34343/info/
Comment has been collapsed.