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This article contains major spoilers!

Lost Islands are a set of separate islands far from the Main Island of Roria, never seen on the Roria Town Map. Due to the unique position and isolation of this archipelago, these islands hold many mysteries that researchers are continuing to discover. One the most interesting mysteries about the island is the discovery of the few unique crystals that emit the same power as Mega Stones, which are known as Z-Crystals.

In addition, foreign Pokémon have been discovered and can be encountered on these islands, including new Regional Variants of some existing Pokémon in Roria. Certain Pokémon species, which would otherwise evolve into their Kanto Form evolutions, will evolve into their Alola Form evolutions instead on these islands when the requirements are met.

Notable Places

Research Camp and Z-Crystal Quest

There are few tents found above the ramp after landing on the larger island from the Double Decca. A small group of researchers can be seen working hard on analyzing data obtained from the Pokémon on Lost Islands, exotic to the region of Roria. One of the blackboards is shown with an art of seemingly Kantonian Meowth, but with the type crossed out and corrected as Dark, signifying that they have discovered Alolan Meowth.

In front of this research camp, a female Paleontologist belonging to this squad explains about the mysterious Z-Crystals, noting that they are hard to reach. She then notices that the player is a Pokémon Trainer, and requests him or her to search for the Z-Crystals after giving a new Z-Crystal pouch to the player, thus beginning the side quest for acquiring the Z-Crystals.

Shipwreck

S.S. Tess

The boat, with "Tess" marked on it, crashed onto the island.

Following the shoreline behind Salty Sam after landing, a site of a shipwreck can be found, with a white boat left stranded after the crash. An Adventurer from the team of researchers also mentions that this ship seems to be abandoned here for a long time, and he would hardly expect any survivors. Looking closely, the ship actually has "Tess" marked on it. Could this be a clue that explains the mysterious disappearance of Rival Tess' long gone parents?

Pokémon

Note: Rarity levels are estimations according to this scale and might be subject to changes due to different encounter assessment results, unless supported by official encounter rates, which are listed in red under the rarity level if known. If there are any Pokémon with low catch rates, the possibility to flee or requirement of gaining happiness to evolve, recommended Poké Balls for that Pokémon will be shown with the corresponding bag sprite under the Pokémon's name.

Pokémon Type Image Rarity Items EV Yield
Grass Patches Tall Grass Lv. 20-30
YungoosNormal
Yungoos SM
CommonPecha Berry1 Atk
PikipekNormal
Flying
Pikipek SM
UncommonOran Berry1 Atk
Rattata
Alola Form
Dark
Normal
Rattata-Alola SM
UncommonPecha BerryChilan Berry1 Speed
GrubbinBug
Grubbin SM
RareNone1 Atk
RockruffRock
Rockruff SM
Very Rare
1.1%
None1 Atk
Fishing Old Rod Old Rod Lv. 10
TentacoolWater
Poison
Tentacool XY
CommonPoison Barb1 Sp. Def
FinneonWater
Finneon-M XY
Finneon-F XY
UncommonNone1 Speed
Fishing Good Rod Good Rod Lv. 20
TentacruelWater
Poison
Tentacruel XY
CommonPoison Barb2 Sp. Def
LumineonWater
Lumineon-M XY
Lumineon-F XY
UncommonNone2 Speed
TentacoolWater
Poison
Tentacool XY
RarePoison Barb1 Sp. Def
MareanieWater
Poison
Mareanie SM
Very Rare
1.2%
Poison Barb1 Def
Water HM Water Surf Lv. 20-30
TentacruelWater
Poison
Tentacruel XY
CommonPoison Barb2 Sp. Def
TentacoolWater
Poison
Tentacool XY
UncommonPoison Barb1 Sp. Def
LumineonWater
Lumineon-M XY
Lumineon-F XY
UncommonNone2 Speed
Corsola
Net Ball
Water
Rock
Corsola XY
RareLuminous Moss1 Def
Click on the Pokémon names to check their learnsets on Bulbapedia. All Pokémon above have been updated to follow their movesets in Pokémon Sun and Moon. Hover on the item sprites to check the exact chance of being held by the Wild Pokémon.

Roaming Pokémon are not listed in the table above. They are fixed at Lv. 40 and have a 0.1% chance of appearing anywhere in Roria with wild encounter methods specified here.

Items

State Item Obtaining Location
Z-Crystal Pouch
Z-Crystal PouchGiven by the female Paleontologist.
Grassium Z
Grassium ZOn high ground accessible by a cave passage near the shipwreck.
Firium Z
Firium ZInside a volcanic chamber on the centre of the larger island.
Waterium Z
Waterium ZInside a cove within the smaller island.
There was no change to the above items between any of the updates.

Trivia

  • Including all associated areas such as Deep Jungle, this archipelago is currently the only place in Pokémon Brick Bronze that has Wild Alola Pokémon available so far.
  • Instead of evolving into Kantonian final forms, Pikachu, Cubone and Exeggcute evolve into Alolan Raichu, Marowak and Exeggutor by using a Thunder Stone, reaching Lv. 28 or above overnight, and using a Leaf Stone respectively when the player is on Lost Islands.
  • While the Paleontologist says that using a Z-Move will drain energy from player's bracelet, the player actually possesses neither a Mega Bracelet nor a Z-Ring. She only gives a new pouch to the player's bag instead of actually giving the player a Z-Ring.
  • The Paleontologist says that the Z-Crystals are guarded by some strong Pokémon, referencing to the Totem Pokémon.
    • However, currently, all available Z-Crystals are left unguarded.
  • The music on Lost Islands was based on Hoenn Safari Zone theme from the core series game Pokémon Ruby, Sapphire and Emerald.


Roria
Roria
Towns Mitis TownCheshma TownLagoona Lake (Trenches) • Port Decca
Cities Silvent CityBrimber CityRosecove City (Beach) • Anthian City (Housing Dist.Shopping Dist.Battle Dist.ParkSewer) • Aredia City (Old ArediaAredia Ruins) • Fluoruma CityFrostveil City (Catacombs)
Routes 12345678910111213141516
Caves &
Mountains
Glistening GrottoSteam ChamberMt. Igneus (Igneus Depths) • Path of TruthSilver CoveMt. Cragonos (MinesCliffsPeakSanctuarySpringChamber of the Jewel) • Desert CatacombsNature's DenCalcite ChamberMartensite ChamberDendrite ChamberTitans' ThrongFreezing Fissure
Islands Lost Islands (Deep Jungle)
Other
Locations
Gale ForestOld GraveyardSecret GroveGrove of DreamsFortulose ManorCosmeos Valley (Observatory) • Tinbell Tower (Construction Site) • Secret Lab