Not an unknown X-PLane website, but since it’s renewed, worth to bring it back to your attention.
Welcome to Maxx XP! This site contains add-ons for X-Plane 10. We from Maxx XP decided to start Maxx XP to help add some artistic flair to our favorite simulator.
The current lineup contains some key changes to drastically change the appearance of the environment and some nice airport scenery for you to use. The highlight of Maxx XP is UrbanMAXX Extreme, this add-on will add detail to your urban world.
UME uses many advanced texture techniques to seamlessly integrate the new urban textures into the simulator. More about Maxx XP, the freeware and payware software, is available through this link.