Now it's a matter of sustaining and slow growth. Hopefully. Best thing you can do to see Lemmy succeed is participate: comment, post, doomscroll All+Top Hou ;)
It'll take a while for some of the smaller communities to get critical mass. And that's okay, probably. Critical mass is here for the larger topics already. I'll do my best to help :)
I was on Reddit a lot to see chatter about games I enjoy. The presence of Destiny 2 or Diablo 4 players seems pretty quiet on Lemmy. A lot of game devs are on Reddit and I don't know how many of them have or will move to another platform.