It's well known that Dead by Daylight's maps are tile-based. Each map has a fixed layout but the tiles within that layout are randomised. Ever wondered how they actually construct those?
The answer is that they use Zelda tiles. Or, rather, they used to.
Okay, that's a bit of a broad way to put it but it's not technically wrong.
Maps in DbD are built using UE4's PaperTile system. So they are built out of actual tiles in an actual tile editor and then this data is used by the game to generate the levels. I built a tool to parse the JSON-serialised versions of these tilesets into images and actually view how the maps are laid out.
The reason I say they used ""Zelda tiles"" is because until it was changed the "base" layer of tiles uses tiles pulled directly from Zelda (Link to the Past I think?).
For example, here's what the base tile layer for Coal Tower used to look like:
With the new tiles, it looks like this:
Shoutouts to the Moai Head.
I'm not actually sure when they changed this. I only found out when I went to make this post. Interesting though.
Anyway, maps are built in several layers. Admittedly, I'm very unsure of the exact purpose of each layer.
There's the base layer pictured above, then a "numbers" layer which I think more concretely defines the actual types of tile used, and some layers which I don't actually fully understand such as "paths", "tags". There's a "numbers" layer which I think helps define what kinds of tiles are actually inhabit a space? But I'm not sure how this is distinguished from the base layer which clearly does a similar thing. In the above base layers you can see how some of the tiles correspond to loops/gyms/whatever. The houses represent structures but I think the fountains/moai head specifically represent the killer shack? Not 100% sure. The walls represent edges.
Here's what CoalTower looks like with all its layers enabled:
The bars/lines are the "paths" layer and the red diamond is part of the "types" layer.
And, if you're curious, here's the tile layout of Nostromo Wreckage from today's PTB:
