It’s nice to see a new website using Grav.
I hope that I won’t sound too harsh, but there is a lot to do on the front-end part of your website. I will give you a feedback, because as a digital agency, those are issues you shouldn’t have.
This is your website on mobile: (Firefox, Android 9)
The responsiveness is bad, even on desktop. When I resize my window, first issues appear at 1500px.
Purple link on orange background probably isn’t the best choice and moreover, a purple link is the default color for an already visited link…
You might want to look at your page title, because you’re talking about SEO on your website and you could improve yours.
On the homepage, there is a typo: “custome game” instead of “custom game”.
I hope this will be helpful.