I think just rewrite the games descriptions so your pages can be more unique for better ranking, because your keywords are hard to rank good on search engines. I think logo is fine, if you want your visitors to focus on the ads or games, logo does not need to be too fancy. Good luck to your site!
I like the layout and simplicity of the website, however I am not a great fan of the background colour, it's a bit hard on the eyes. The logo is also very nice, and I like how you've categorized everything. Good luck