Dead by Daylight

Special items can be created or found in a match and not taken out. Only one item type counts per match. Simply picking up or creating the item seems to be enough to count.

Progress is limited to one item type per match. For example, 1 flashbang and interacting with a killer's items would give you 2/35. Creating multiple flashbangs per match do not count.

Leon: Flashbang perk. Create it by jumping in a locker.

Nemesis: There are boxes with syringes. You will have to get infected in order to use it but not to interact with it.
Cenobite/Pinhead: The lament puzzle will be highlighted on the map. Find it and interact with it for it to count.
Onryo/Ring: Take a tape from a TV. IF you start with a tape, you will need to put it in a TV and THEN get another tape for it to count.
Wesker: There are boxes with spray.
Singularity: There are boxes with EMP devices. They can either be generated manually or waiting around will automatically generate them too.
Xenomorph: Take the flame-traps from the boxes. Taking them out of the box is all that is required.

Nostromo Map: Search the space suits that are lying around the map. One of them will have a key. Take the key inside the large spaceship (Nostromo) and use it to unlock a door (computer room) and then press left down up right to open the door.

Chemical Burn perk and Diversion pebble perk do not count.
T-bagging a camping Ghostface does not count either unfortunately.