"Denimjo;c-17927528" wrote:
"ModerateOsprey;c-17927272" wrote:
Checked this the other day. You can't use DLC from Steam if you have the base game on Origin. CDkeys has the cheapest DLC I could find. About a tenner for an expansion pack and gives you an Origin key
Have you tried adding The Sims 4 Base game to Steam via the 'Add a Non-Steam Game to Library' option from the Games menu?
I haven't actually tried that, but I asked a similar question a few days ago. But while waiting for answer I found this on the EA site:
https://answers.ea.com/t5/General-Discussion/Is-it-possible-to-transfer-dlc-from-STEAM-to-Origin-SIMS4/td-p/9511292
relevant bit of post from that link:
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If I buy a game on Steam, can I buy DLC for that game on Origin?
Yep! You can buy DLC both on Origin and Steam.
If I buy a game on Origin, can I buy DLC for that game on Steam?
For Origin-purchased base games, you’ll need to buy all DLC in Origin