@jpkarlsen Apparently this is not a rumor, or at least partially true. According to review on steam today, it is clear that the DLC does not need a repurchase, but the base game does.
[From review of Steam user "Zanturo"]
I love the Sims. I love The Sims 4. Here's why I don't recommend it.
-Still launches through Origin. Buying on Steam just adds another layer of DRM.
-If you previously purchased through Origin, you will need to redownload any DLC, even if you already had it installed.
-Your DLC carries over, the base game does not, which means you'll have to purchase the base game again.
-Your DLC doesn't 'unlock' through Steam's store, if you purchased it on Origin(because of course it doesn't).
This is probably the worst Steam integration I've ever seen. Don't buy it here if you already own it, just use "add non-Steam game to library". It's almost identical and $20 cheaper.
Problem: I purchased Sims 4 digital deluxe, played it in Origin and purchased the game and packs through EA..... now I want to purchase more packs, it takes me to Steam and I can not purchase an Expansion unless I re-purchase the game! So infuriating. They act like you are purchasing for a different machine.... no I play on a PC and I didn't ask to use Steam. If EA is moving to Steam - all of their games should move with it. I should not have to repurchase anything. I am ready to abandon the whole thing.... Sims 4 - Origin - EA - Steam! It's bad enough that you can't just purchase an upgrade when a new Sims comes out and keep your packs and kits and stuff as well as the families you created.... now you have to repurchase the game itself. And with Sims 5 coming out - just around the corner - why should I pay again for Sims 4?
@sray9714 Did you ever purchase any Sims 4 content from Steam, or get an EA Play subcription from Steam? You definitely don't need to buy any Sims 4 content through Steam; Origin still hosts and sells the game on its own. I'm curious exactly how you get to the point where you're redirected to Steam; if you see some kind of error message, please post a screenshot.
You can also try buying on origin.com rather than in-game or through the Origin app. Your content will show in your Origin game library regardless.
