I'd keep asking yourself the question then because people/entire institutions have been asking these same questions for years
There are many articles/videos which attempt to analyse just what makes games addictively playable and highly attractive available on line, so studying these helps built the bigger picture I guess, along with your own feelings about games (assuming your experience mirrors many others). The game certainly should excite you and make you really want to play it; otherwise it's unlikely anyone else will want to.
However, having all the right ingredients is often still not enough, effective marketing, visibility, and luck all play a part and some of those factors are not under your direct control