Fire Emblem Three Houses. I didn't hate Awakening and Fates as much as some people, but Three Houses is way better in basically every way. It's harder, it has a story that isn't hot garbage, the new things it adds aren't just gimmicks. I liked the compromises between new and old, and all the things they got rid of needed to go. Maybe in another decade I'll want a Fire Emblem with a second generation, but not now.

Disco Elysium is almost everything I've ever wanted in an rpg. I love just the experience of playing it, the way it looks and moves. The voce acting isn't always perfect, but it always oes the job.

Undertale is just really fun the whole way through, and it tells a good, emotionally resonant story.

Superhot isn't necessarily one of the best games of the decade, but it is one of the games I've played the most. It's got a great central mechanic, and once you beat the game you don't have to think about the story ever again.