Sunken Gardens' Secret Room with a single Deluxe Box as a reward
Secret Rooms are a feature that was added to the game in PMU 7. They are areas in dungeons that can be accessed through entering golden stairs found on a dungeon floor. These stairs have a random chance of spawning on a floor and initially spawn hidden. The floors a Secret Room can spawn on and the rate of appearance varies on the dungeon.
Not all dungeons have Secret Rooms, and Secret Rooms can only appear in randomly-generated dungeons. Fixed dungeons such as Friendship Forest will never have Secret Rooms. Secret Room stairs also cannot spawn on the last floor in a dungeon or its given section. Secret Rooms often reward players with a varying amount of Deluxe Boxes that can give items when opened at Xatu's Appraisal. However, some Secret Rooms also allow players to obtain rare, exclusive Pokémon.
Dungeons with Secret Rooms[]
The following below lists the dungeons that contain Secret Rooms and their corresponding information.
Exbel[]
- Island Garden - two boxes
- Honeydrop Meadow - Scyther (Dawn), Pinsir (Dusk)
- Far Thunderstorm Forest - two boxes
- Gritty Burrow - two boxes
- Mistspring Woods - two boxes and Oricorio
- Loch Lenile Cavern - Red Moon Spring (11-20F), two boxes
- Mineral Cavern - one box
- Mt. Barricade - five boxes
- Mt. Skylift - two boxes
- Southern Sea - two boxes
- Southern Sea Depths - 4 Pearls, 1 Big Pearl, and Skrelp
- Harmonic Tower - three boxes (50-74F), one box and Bagon (75F+)
Winden[]
- Winden Forest - two boxes
- Crystal Ruins - one box
- Snowveil Den - two boxes
- Mt. Stormhold - two boxes
- Sky Fortress paths - two boxes
- Sky Fortress Sky Garden - four boxes
- Concealed Laboratory - Porygon
- Risen Derelict - two boxes
Tanren[]
- Rocky Shoreline - Basculin
- Mystic Coven - Dusk Lycanroc (31-40F) (Dusk), Midnight Lycanroc (41-49F) (Night)
- Sunken Gardens - one box, Alomomola
- Sunrise Temple - Larvesta egg
- Tanren Graveyard - Mimikyu
- Tanren Mines - two boxes
- Tanren Mines Depths - two boxes
- Tanren Basement - four boxes
- Tanren Courtyard - two boxes, Spiritomb (Night)
- Iceberg Cavern - entrance to Iceberg Frigid Waters
- Iceberg Frigid Waters - Lapras
- Iceberg Adrift - two boxes
- Deserted Tomb - two boxes
- Dynamo Sands - two boxes
- Daydream Dream Grove - two boxes, Cresselia (31F+)
- Nightmare Dream Grove - two boxes, Darkrai (31F+)
- Undercity Catacombs - two boxes, Vullaby
- Ancient Caustic Sewers - two boxes
Archford[]
- Stark Volcanic Woods - Victini
- Boggy Wastes - four boxes
- Starlit Lagoon - two boxes and Espurr
- Inferno Volcano - two boxes
- Seafloor Ruins - two boxes, Phione (Central)
- Mysterious Jungle - two boxes
- Mt. Moon - two boxes and Elgyem
- Sandy Shallows - Alolan Raichu
- Murky Trench - two boxes
- Shimmering Seabed - two boxes
Red Moon Spring[]
- Main article: Red Moon Spring
The Red Moon Spring is a special Secret Room in Loch Lenile Cavern. The player can regenerate Fossil Pokémon using Fossils when the time of the day is night.