Hah well one tip would be do NOT make a complex framing/structure for your daily puzzle game like we did with Kickoff League. It was a fun experiment but it mostly just confused people.

A more meta tip is if you make multiple games, try to have some genre or theme overlap so you can build a community among players of your games. I wish I had done this more with my more successful games (which are mobile games, not web games, but the same idea applies).