Crossovers have become a staple of modern-day pop-culture. While superhero comics and various popular movie IPs have been crossing over for decades, it's only been in the last decade or so that large-scale media crossovers have become the norm across all entertainment mediums, including video games. If a game is popular enough, and a collaboration makes sense, it's become pretty standard that fans will receive some kind of crossover in the near-future, and that's been exactly the case for Dead by Daylight.