Spun up new 7D2D server, no mods map size 8000 RWG. After 35-40 minute of "starting (loading server 99%)" status get server crashed notification and the process starts all over. It's been like this for 5 hours.

Did you upload a RWG pregenerated with an external tool? If not, TFP (The Fun Pimps, creators of 7D2D) in their infinite wisdom decided to make the server code generate RGW with a graphics processor, instead of RAM or CPU. If you do not create hte RWG externally, it can take several -days- for a headless server to fully create your map for the first time. It's super recommended you use an external program for an RWG for this reason.

The most popular is called Nitro Gen

Yep, got it sorted out. Nitrogen is awesome, thanks for the reply.

Happy to have helped, glad it's working.