No one has figured out the precise spawn timer for Dark And Darker Gold Blue Headstones but, but they begin displaying up pretty early. It's now not instantaneous, however after approximately 8ish minutes the Event Feed notification of Exit Portals spawning will start displaying up inside the top right.

Once the portal is spawned, it stays open till used, so gamers can open it, do a little remaining-minute looting, and then hop out with out traumatic about interacting with the gravestone again.

As of the second one alpha at the least, Blue Headstones generally tend to spawn in companies exceptionally close to one another. So, if a group of three best unearths one Headstone, it's better to search the surrounding rooms than argue about who gets to buy Dark And Darker Gold exfil first.