This game shook up the (stale, even at the time) soulslike theme and mechanics in just the right ways. A more fast-paced, aggressive combat system in an eldritch-gothic setting.

Bloodborne also has some interesting experimental content, such as the chalice system. Not everything works, but it's all worth seeing.

If you liked Dark Souls (or, maybe if you hated it?) this game is worth a try.