There are mobile games that can be played online, but you cannot currently play The Sims 4 on PC online.
Is it possible to play The Sims in your browser?
The Sims are now available on computers, Macs, consoles, and mobile devices. Even if you can’t play The Sims 3 online in your browser anymore, you can take your Sims with you wherever you go with our two free mobile games, The Sims Freeplay and The Sims Mobile!
Can I play Sims 4 for free online?
The Sims 4 is now available for free on the majority of platforms. The base version of the iconic life simulator is available for PC (via the EA app, Origin, and Steam), PlayStation 4, PlayStation 5, Xbox One, and Xbox Series X/S.
Is The Sims 4 always free?
Anyone who wants to try and buy The Sims 4 can do so for free. And, of course, once we have it, it will be forever. Despite the fact that it is solely the base game (without any kind of expansion or downloadable content)