Ask at the door; redemption is not entry
The Royal Treasury is Classic’s text adventure. In the integrated version, open Royal Treasury in the mailbox/log menu, then choose Enter and confirm. Old redemption codes are not an entrance ticket. This is a story puzzle, not another recipe table or the main-game warehouse.
Look before reaching
Remember colours, directions, counts and sounds. A red key is not a bronze key; “一”, “丨”, “／” and “＼” are actual switch clues, not broken text. Watch changes in the room and inventory before poking every little hole.
Mind body and spirit
Health and sanity each start with a cap of four. Injury or fright can send your trip back to the entrance. Read the warnings by the pool, the strange water and the chandelier carefully. These hints will not secretly choose for you.
Keep a little expedition note
Note rooms, items, action order and endings so each return does not begin with “Who am I and where is the door?” This page gives hints rather than a full ending route. Current rewards apply; old fixed Orb totals and old codes are not guaranteed.