Here is a great collection of 16 Phpnuke themes, please note they do not come with any matching forums, so by default they will use the subsilver forums. They are not game related in any way, more buisness type themes, but all are very clean and fixed width with a preview included before you upload it. These themes come with no support and fall inside the GPL licence laws

phpnuke webhosting theme is designed by phpNuke-theme.com. The template is mainly targeted web hosting sites who are running phpnuke CMS as well as offering phpnuke content management system for their clients. The theme is converted from adobe photoshop template to a phpnuke template. It has many professional touches to it although the theme is free for distribution. PNT Hosting theme is release...