I'm eagerly waiting for Origin to include The Sims in their library.
You can get The Sims 2: Ultimate Collection by contacting a representative on Origin. They'll ask for an activation code if you have any of TS2 cases. That's how I got mine 4 years ago.
I've read that it might be possible to request a copy without having a code. It's worth a try. The game runs fine after doing some graphic adjustments.
Here's an article with workarounds for the common graphic issues when playing on advance systems:
https://simscommunity.info/2016/04/27/the-sims-2-setting-up-the-resolution-windowed-mode-smooth-edges-sim-shadows/