As a massive fan of the Half-Life series, Half-Life: Alyx completely blew my mind. It's by far one of the most immersive games I've ever played, with a fantastic story, tense gameplay, and the most rewarding exploration I've ever experienced. This single game made me feel like my purchase of an Oculus Quest 2 was worth getting, and it'll keep being worth it as mod tools get better and people create custom campaigns.