There is a free game that apparently at the end reveals it to be a demo/prequel of the video game.Original Timeline
1972 - Jason vs Leatherface #1-3
1973 - The Texas Chain Saw Massacre (?)
1973 - The Texas Chainsaw Massacre
1986 - The Texas Chainsaw Massacre: Part 2
1991 - Leatherface: Texas Chainsaw Massacre III
1996 - Texas Chainsaw Massacre: The Next Generation
2020 - Texas Chainsaw Massacre
Having played Left 4 Dead, I'd probably say that Bill is taken by the Entity during The Sacrifice campaign, which sees one of the survivors sacrifice themselves to allow the other three to escape. Canonically, Bill is the one who sacrifices himself to save the other three, as confirmed in the tie-in comic and the appearance of his corpse in the final chapter for The Passing campaign in Left 4 Dead 2 (which takes place following The Sacrifice).Dead by Daylight licensed characters list (I don't know much about Left 4 Dead, Silent Hill, Resident Evil or CryptTV):
Michael Myers/Laurie Strode
-Unspecified Halloween Universe (???? Timeline)
-Taken from unknown year.
-Texas Chainsaw Universe (Original Timeline)
-Taken 1973 (divergent timeline).
Freddy Krueger/Quentin Smith
-A Nightmare on Elm Street (2010) Universe
Amanda Young/David Tapp
-Amanda Young taken 2006.
-David Tapp taken 2004 (divergent timeline).
-Evil Dead Universe
Demogorgon/Nancy Wheeler/Steve Harrington
-Stranger Things Universe
Sadako Yamamura/Yoichi Asakawa
-Ringu Universe (Ringu 2/Sadako Timeline)
-Taken from unknown point.
-Xenomorph taken 2122.
-Xenomorph Queen taken from unknown year.
-Xenomorph Clone taken 2381.
-Grid Xenomorph taken 2004.
-Ellen Ripley taken 2122.
-Ellen Ripley (Aliens) taken 2179.
-Ripley 8 taken 2381.