Dead by Daylight

The best way I found to get this one is by trying to replicate the Evil Incarnate achievement (the one for killing all 4 survivors with tier III Myers).

When you bring the infinite tier III along with Judith's tombstone, the survivors will usually try to prevent your kill by going into a locker. That way, you can only grab them and not kill them with your power. Usually, it's a pain in the ass because you're actively trying to mori them, but this time, we actually want them to go there. When one of them does, simply grab him and let him escape from your grasp. The survivor will then go back into the locker and you can grab them again, rinse and repeat. I got the achievement in two games, getting 17 grabs in my first attempt and completing the rest in the next trial. Here is the build I used :

Add-ons : Fragrant Tuft of Hair and Judith's Tombstone

Perks : Corrupt Intervention, Hex: Ruin, Hex: Undying and Play with your Food

The first three perks are there so the survivors don't complete the gens too quickly, and while you build up your tier III by stalking them and getting them off gens (that way Ruin can do its job), try to find your obsession to get your 3 tokens of Play with your Food by starting a chase with them and then looking at the ground. Judith's Tombstone reduces your movement speed by 9 % while in tier III, but Play with your Food will compensate by increasing it by 15 % (even two stacks are ok since you'll be getting a 10 % increase). Also, you don't lose your stacks when you mori a survivor with the tombstone.

When tier III pops, try to find a survivor and chase him. If you're lucky, he will go into a locker and you can start grinding immediately. Otherwise, mori him and get to the next one. In both of my games, I mori'd the first two survivors and the third one went into a locker. I got lucky since only one survivor could work on gens while I kept grabbing the other one. Hopefully you can get the same situation as I did. If not, you should still get it in a few games. Good luck !

You can be any killer. Just load in be friendly. get a survivor to chase you to a locker and hope they understand what you want. most survivors are pc so they think u need a daily challenge so they will assume u only need to do it like 3 times. so you can either get this in 1 match or 10 depending on how smart your survivors are.

The previous guides are very useful but I have one more (admittedly a bit more cheesy) way to go about it, I used this to get the very recent (at the time of writing this) Collision Course achievement. Simply try and meme with the survivors make them know you're friendly, this can be done with any killer obviously but it would probably be easiest with Ghostface as he has a crouch mechanic to communicate "I'm not playing seriously" the best. After you establish the understanding try and get a survivor to follow you which will happen most of the time, head to a locker and hit it repeatedly and if the survivor understands enough they climb inside, grab them, let them go then repeat for as long as they are willing, personally I didn't do most of it this way I just did it throughout my hours but this is the method I've used for other much more tedious achievement s that require less skill on your part and for Survivors or Killers to play a very specific way.

Hope this helps for people who don't own Myers, even though I recommended ghost face this is very easy to do with any killer.