*** Updated ; Read page >>> http://raptor.nu/servers/ or use the upper menu to choose server page for better explanation. Thanks.
Currently theres an issue with finding Raptor.nu servers in the steam or ark browser.
Exactly why this is so its unclear at the moment but its being worked on.
Meanwhile use the alternative method to connect to PVE server :
Open steam , choose VIEW
Choose flip Favourites
Add server (and enter) : 184.108.40.206:27015
Then join the game from steam.
One can also join server from console by typing :
open 220.127.116.11:27015 <press enter>