Dead by Daylight collaborations were initially made with characters from Slasher Films, then with Stranger Things the DBD Universe it has also expanded to TV Series, and with Pyramid Head it opened to collaborations also in the world of Video games. Indeed, collaborations from the world of comics are missing, but it's probably not as far away as you think..
Hack/Slash in fact, the comic book starring Cassandra "Cassie" Hack, written by Tim Seeley, could arrive soon on Dead by Daylight, if fans want it.
A couple of hours ago, a user asked to Tim Seeley on Twitter if he actually would like to collaborate with Dead by Daylight, as in the last recent DbD survey there was a question in reference to chapters taken from comics, and he replied that not only is he interested, but that there has also been a brief discussion between the parties about it:
Cassie Hack on Dead by Daylight? hmm.. would be dope but how many actually know this license?
Yeah, I love Cassie Hack but actually I think few people know him :/