I will create a dungeons and dragons campaign or oneshot for you

Disclaimer: These are blueprints for your campaign, you can and should change or alter them as you see fit to fit with your world you want best as after the prepared content has been used it'll be up to you to continue the story.

One-Shot: Short story with improve prompts, combat, monsters, encounters, images and descriptions of some locations. Should be around 3-6 hours of content.

Small Campaign: Small worldbuilding, simple npcs, images and descriptions of certain locations, encounter list you can pull from, player character questionnaires, and scripts/story prompts. Enough content for 2 sessions to get your world off from a solid start.

Full Campaign: Full worldbuilding, Maps, images and descriptions of locations, npcs - some with small backstories, encounter list you can pull from, in-depth player character questionnaires, scripts and story prompts, descriptions of groups/factions/organizations, lore.