I'm not surprised by the numbers considering how popular Osu is. I followed some content creators and events that use their game as a marketing tool which shows how mainstream it is. I think being one of the first rhythm games with a high skill ceiling helps their popularity, CMIIW.

I don't think I've seen a crypto/blockchain game with the same depth as Osu (or with a plan to have one). I don't think we'll see one unless the market shifts significantly by rewarding developers with consistent updates and communication instead of pump & dump tokens.