So you used to kill a special boss in Gambit to get that quest but that got removed. From what I found on the internet you now should get the quest as soon as you kill a primeeval. The problem is I never got that quest. I asked other players they said the same. Another thing thats weird is that the drifter's icon always "lights up" like I got something to do with him, but there is nothing. He might be bugged. I can not complete my Dredgen Title without it so I would really need some help. Thank you in advance! Edit: I forgot to mention, that I did check all characters and the quest kiosk.