Sekiro has the most immersive sword combat I’ve experienced, which is weird considering how simplistic the fundamentals of Sekiro are. But the visual representation of the fight is what makes it immersive. You’re not just flaying your sword around and the enemy isn’t just tanking slashes like they’re made of steel. Most enemies use their weapons to block your attacks and in the same vein you use your sword to block their attacks. Combat mostly revolves around breaking posture which creates an opening you use for the killing blow.