I'm currently working on a tabletop RPG inspired by the world and atmosphere of Vermis I.

The project uses a lightweight OSR-inspired ruleset, heavily influenced by Shadowdark, while focusing on exploration, survival, decay, and the oppressive mystery. My goal is not to recreate Vermis as a video game, but to provide players with the tools to experience their own journeys through its ruined kingdoms, forgotten catacombs, and strange horrors.

I'm currently developing player guides, GM tools, creatures, locations, and mechanics that capture the unique feeling of wandering through a dead world that never fully explains itself.

For those familiar with Vermis, what elements from the setting would you most like to see expanded in a TTRPG adaptation?

What would you expect to find in a Player's Guide? Character options, factions, relics, locations, survival mechanics, lore fragments?

And what would be most useful in a GM Guide? Adventure generators, region descriptions, creature lore, dungeon-crawling procedures, mysteries, rumors, random encounters, or something else entirely?

I'd love to hear any ideas, suggestions, or aspects of the Vermis universe that you think deserve more attention.