Tie between Dragon Age Origins (because it got me back into gaming) and Veilguard because the ending rocked me the first time around. Honestly, I just love all the Dragon Age games (even the flawed parts)

You are stronger than me! I tried. I really did. Reloaded to my original choice. Reloaded, opposite choice. Finally, I reloaded back to my original choice.

I tell myself I'm going to make all the opposite choices. I think I made one change from the last playthrough and I am almost done now. Maybe the third try?

I am also on my second run through Veilguard. I need to see all the things I missed the first time. I honestly believe there are few game companies that tell stories on Bioware's level