So many great solutions have been suggested already. Among them, I feel that proper ANN presentation and great word of mouth initially are the primary factors which determine whether your site will become successful in the short-term and the long-term.
Also, try providing something unique which cannot be found in rival sites giving you an edge over them in several ways op.
Thanks for your answer. I already have some unique games and features available only on my website. I don't want to ruin the dev team that worked really hard for them since I'm alone in this project (except dev team that I'm paying from my wallet)