One of my Contributions to Diablo's Vessel of Hatred expansion was the worldbuilding done for the "Bug Infestation" theming that can be found inside the of the Ziggurat dungeons. My goal for this theme was to lean more into a Drier, wasp nest like theming to contrast against the gooey and slick "Bug Cave" (Also found in Vessel of Hatred, made by Michael Manfredi).
The Bug theme itself is layered on top of the Interior Ziggurat tileset made by Timothy Linn.