Sign in to mark the Gastrodon you own and where each one is.
Where to catch it
9 games
Scarlet/Violet
SwitchStart a huntI have itAvailable now- Wild odds
- Full odds 1 in 4,096
- Mass outbreak up to 1 in 1,365 (cleared 60+ · outbreak species only)
- Breeding odds
- Full odds 1 in 4,096
- Masuda method 1 in 683
Casseroya Lake, North Province (Area Three)Wild
The pink West Sea form lives on the western side of Paldea.
Researched, awaiting review · checked 7 Oct 2026 · serebii.net
Shiny: yes
Legends: Arceus
SwitchStart a huntI have itAvailable now- Wild odds
- Full odds 1 in 4,096
- Mass outbreak 1 in 158 (outbreak species only)
- Massive mass outbreak 1 in 315 (outbreak species only)
Obsidian Fieldlands (Sandgem Flats, Ramanas Island)Wild
Researched, awaiting review · checked 7 Oct 2026 · nintendolife.com
Shiny: yes
Brilliant Diamond/Shining Pearl
SwitchStart a huntI have itAvailable now- Wild odds
- Full odds 1 in 4,096
- Poké Radar chaining up to 1 in 99 (chain 40+ · grass only)
- Breeding odds
- Full odds 1 in 4,096
- Masuda method 1 in 683
Routes 218 and 221 and Fuego IronworksWild
The West Sea form lives on the western side of Mt. Coronet.
Researched, awaiting review · checked 7 Oct 2026 · pokemondb.net
Shiny: yes
Sword/Shield: The Crown Tundra
SwitchStart a huntI have itAvailable now- Raid odds
- Dynamax Adventures 1 in 300 (Max Lair only)
- Breeding odds
- Full odds 1 in 4,096
- Masuda method 1 in 683
Shiny: yes
Omega Ruby/Alpha Sapphire
3DSStart a huntI have itAvailable nowTransfer to HOME closes in 102d 21h26 Feb 2027, 03:00 UTC · via Pokémon Bank
- Breeding odds
- Full odds 1 in 4,096
- Masuda method 1 in 683
Evolve ShellosEvolution
Level 30; West Sea Shellos keeps its colouring.
Researched, awaiting review · checked 7 Oct 2026 · serebii.net
Shiny: yes
X/Y
3DSStart a huntI have itAvailable nowTransfer to HOME closes in 102d 21h26 Feb 2027, 03:00 UTC · via Pokémon Bank
- Wild odds
- Full odds 1 in 4,096
- Poké Radar chaining up to 1 in 200 (chain 40+ · grass only)
- Friend Safari 1 in 819 (Friend Safari only)
- Breeding odds
- Full odds 1 in 4,096
- Masuda method 1 in 683
Shiny: yes
Black 2/White 2
DSStart a huntI have itAvailable nowTransfer to HOME closes in 102d 21h26 Feb 2027, 03:00 UTC · via Poké Transporter → Pokémon Bank
- Breeding odds
- Full odds 1 in 8,192
- Masuda method 1 in 1,365
Evolve ShellosEvolution
Shellos evolves at level 30; West Sea Shellos is traded by Yancy, who only appears for a male player character.
Researched, awaiting review · checked 7 Oct 2026 · pokemondb.net
Shiny: yes
Platinum
DSStart a huntI have itAvailable nowTransfer to HOME closes in 102d 21h26 Feb 2027, 03:00 UTC · via Poké Transfer to a Gen 5 game → Poké Transporter → Pokémon Bank
- Wild odds
- Full odds 1 in 8,192
- Poké Radar chaining up to 1 in 200 (chain 40+ · grass only)
- Breeding odds
- Full odds 1 in 8,192
- Masuda method 1 in 1,638
Shiny: yes
Shiny: yes
Shiny: yes
Route 205 — South Towards Floaroma TownWild
Lv. 20–40 · Surf
Imported, awaiting review · checked 7 Oct 2026 · PokeAPI
Shiny: yes
Route 212 — East Towards Pastoria CityWild
Lv. 20–40 · Surf
Imported, awaiting review · checked 7 Oct 2026 · PokeAPI
Shiny: yes
Shiny: yes
Shiny: yes
Shiny: yes
Shiny: yes
Diamond/Pearl
DSStart a huntI have itAvailable nowTransfer to HOME closes in 102d 21h26 Feb 2027, 03:00 UTC · via Poké Transfer to a Gen 5 game → Poké Transporter → Pokémon Bank
- Wild odds
- Full odds 1 in 8,192
- Poké Radar chaining up to 1 in 200 (chain 40+ · grass only)
- Breeding odds
- Full odds 1 in 8,192
- Masuda method 1 in 1,638
Shiny: yes
Shiny: yes
Shiny: yes
Shiny: yes
Shiny: yes
Shiny: yes
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