Dead Space 3

Dead Space 3 divides the series fanbase because it leaned further into action than its predecessors. That criticism is fair. It still earns the tenth spot because it is one of the very few substantial two-player sci-fi horror campaigns on Xbox, and the co-op adds unique scenes and content that the solo mode does not have. I played through it with a friend over a few evenings and the resource pressure, the Necromorph encounters in tight corridors, and a couple of genuinely effective jump moments kept it feeling like horror rather than a shooter with horror dressing. Available via backward compatibility on Series X|S. Not the scariest game here, but the campaign holds up.