Dead by Daylight

Play as Freddy Krueger, stand still, and let the survivors fall asleep (they’ll become oblivious at this point). Should take you a few matches, but it’s one of the easier achievements. Do this 30 times, and it’s all yours. You can also use perks that make people oblivious too (Hex: Retribution, Deathbound, Hysteria, Nemesis, and Hex: Plaything if you want to play a build that makes the survivors oblivious.