Need Pro Tips For Developing A Gaming Website

I am a web developer but I have never developed a complex gaming website. Recently I got a project to develop a gaming website that has a very complex hierarchy. I have although started working, but I was hoping that if I will get some tips I will be able to do better. I have also looked up for the work of the professional web developer UK and how they have created the entire website, and I have gathered so much inspiration from there. It will so helpful if anyone else could share some useful tips that I can put under consideration for creating the website.