Demon's Souls. I absolutely HATED it.
I was working at a game studio when the game originally dropped on PS3, I somehow didn't hear much about it but my boss swore I'd love it. I was in QA long enough at that point where I had already developed a keen eye for issues. I loved the art, the vibe, the music, but there were so many things about it that I just hated and just didn't click. I remember specifically raging at the whole "players attacks collide with walls and environments, but enemies do not" thing. It especially didn't help that I was working in a position where I was actively bugging/logging bugs that revolved around clipping and gameplay. That one point where you have to move from turret to turret while waiting the dragon's fire breath to let up did me in. Because I was in a turret and the breath clipped through the wall, gently tapped my foot and I instantly died. I immediately when into "fuck this game" mode, and sold it, lmao.
Fast forward years later, and I continue to Gamefly Dark Souls and the sequels/other games just to give them a chance, and again, they never clicked. It was frustrating because so much about it seemed like it was up my alley, I mean, there were SO many Berserk references too, why don't I like it?!
It wasn't until the Demon's Souls Remake dropped on PS5 where I decided to give it another chance, and it clicked. But this time, it clicked HARD. So much so that when I beat that, I immediately went into Dark Souls, then Dark Souls 2, then 3, then Sekiro. All of this was done before Elden Ring where I dumped a TON of hours into it. Now, I absolutely love all of them, and can't stop loving them and wanting more. I STILL haven't finished Bloodborne, and have had my copy at the ready, I was just waiting for a remaster/remake for the longest. I think the progress on emulation makes me happy I waited as it's something else to look forward to, I'm also so glad I still have my copy at the ready.
I think in the long run a lot of it revolved around patience. When Demon's Souls first dropped I was 24/25, and when the remake dropped I was 36. So, I didn't let go so easily. It also helped that the remake was VERY pretty to look at, still one of the prettiest games I've seen with my own eyes personally, especially on a HDR display.
Now, I'm a HUGE fan, and I couldn't be happier.