Revision 1

William Castle (威廉古堡) is one of seven regions opened by Season 3: Lead-Type Dream on July 16, 2026, and it is the anchor of the season's northern map. Official copy describes its candlelit corridors as the visual counterpoint to the clear skies of Golden Water Valley.

Roco Kingdom: World has no official English client, so the Chinese name is the authoritative identifier and the English form below is a literal translation used for convenience.

Eternal Night

The castle and its surrounding regions sit under permanent night. Wild spirits there appear in a shadow state that has to be dispelled, and when the White Moon rises the shadows clear and the energy ceiling lifts to 99 points before draining away again. The full cycle is described on Eternal Night and White Moon.

Main Story

The castle is where the season's main-story chapter converges. A commission from Principal Griffin points the player toward the source of the kingdom's transformation, and official copy places that source deep inside the castle. The thread continues from Main Story.

Region Details

Per-spirit spawn tables and collectible placement for the region are still being confirmed against the live build and will be added to World Map and Locations as they are verified.