If I may make a design suggestion, purely from my perspective...
remove the light purple background behind your game categories. The reason I recommend this is because having it on the plain white background will look more organized, make your headers pop, and open up the page making the website look larger and more populated with content. Give it a try and see what you think
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Edit: also, your .htaccess is redirecting to /site/ that hurts your SEO. Additionally, on the other pages that you list games use a bit better spacing, preferably the same spacing you use on the front page. For the logo, the sub text seems to be different character fonts/colors and some of it is choppy text. There's a blur next to the hippos stomach. Also, remove the :hover attribute if you have one, or set one so that your image doesn't get the blue overlay.
Other than that, looking pretty good
. I like the game page itself when playing a game, not too cluttered at all.