I’m not into making games, but a few of the concepts in How To Make Good Small Games can be abstracted out and applied to other creative endeavors; for example #4 (“A game succeeds when it fulfills its promises” and #5 (” It’s easier for a game to succeed if it makes smaller promises”) are useful guides, regardless of what you do—be careful and deliberate in setting expectations (#5), remove anything unnecessary or that may result in mis-set expectations, and make sure the payoffs (at least) meet the expectations that you’ve set (#4).