The Death Ziggurat

Concept: “A cosmic necrocrawl at the end of time”
Content: Pre-apocalyptic hexcrawl with random elements
Writing: Fairly elaborate with plenty of horrible imagery
Art/design: Captures the mood, setting, and characters well
Usability: Fun and lethal;  separate player and GM maps are quite helpful

Bonus: Generate some dialogue seeds for your rot priests at https://perchance.org/rot-priest-thoughts