- There is something creeping and plotting in the shadows, corrupting everything it touches.
Cities, Towns, and Villages
- Stoneguard – Capitol of Onyx, ruled by King Arthastis
- Fairfall – West coastal port city of Onyx.
- Deltar – Dragonborn city in the northwestern region of Onyx.
- All common races in the PHB.
- Material World – Where the majority of the campaign happens
- Elemental Chaos
- Astral Sea
- Far Realms