[FREE][DLC] Warhammer Chaos & Conquest: Skullhunter Warlord Starter Bundle

You need one of those addons installed like Steamdb addon .
https://steamdb.info/extension/

You will then see this on the game's Steam store page (Right side ,scroll down a bit):
" View on IsThereAnyDeal"
" View on Steam Database"
" View PCGamingWiki Article "

Click on " View on Steam Database" and it goes to the
steamdb site which shows AppID/SubID for that game.
Click on the tag that says "packages".
Look for appid or subid that says something like "freeondemand"
ie: Warhammer: Chaos & Conquest 389460

Or
You can just go straight to Steamdb site and manually search for a game or appid.
https://steamdb.info/app/1144170/subs/

Hi, sorry just online on PC, it's same with @oldman82 explain, just remember we only can add package with "freeondemand"