| DEX↕️ | ✔️ | Name↕️ | Game↕️ | Location↕ |
|---|---|---|---|---|
| 423 | Gastrodon | Y | Friend Safari (Ground; West Sea) | |
| 423 | Gastrodon | SwSh-DLC | Max Lair (Dynamax Adventure) (East Sea) | |
| 423 | Gastrodon | Shield | Pokémon HOME (West Sea)
Route 9, Galar Mine No. 2, Dusty Bowl, Giant's Mirror (East Sea) Bridge Field, Dusty Bowl, Giant's Cap, Giant's Mirror, Lake of Outrage, Rolling Fields, South Lake Miloch, West Lake Axewell (Max Raid Battle) (East Sea) | |
| 423 | Gastrodon | Sword | Pokémon HOME (West Sea)
Route 9, Galar Mine No. 2, Dusty Bowl, Giant's Mirror (East Sea) Bridge Field, Dusty Bowl, Giant's Cap, Giant's Mirror, Lake of Outrage, Rolling Fields, South Lake Miloch, West Lake Axewell (Max Raid Battle) (East Sea) | |
| 423 | Gastrodon | UltraMoon | Ancient Poni Path, Exeggutor Island, Poni Wilds (East Sea)
Poni Breaker Coast (Surfing; East Sea) Evolve Shellos (Lv. 25; West Sea) | |
| 423 | Gastrodon | UltraSun | Ancient Poni Path, Exeggutor Island, Poni Wilds (East Sea)
Poni Breaker Coast (Surfing; East Sea) Evolve Shellos (Lv. 25; West Sea) | |
| 423 | Gastrodon | Moon | Ancient Poni Path, Exeggutor Island, Poni Wilds (East Sea)
Trade (West Sea) | |
| 423 | Gastrodon | Sun | Ancient Poni Path, Exeggutor Island, Poni Wilds (East Sea)
Trade (West Sea) | |
| 423 | Gastrodon | AlphaSapphire | Evolve Shellos (Lv. 25; East Sea) | |
| 423 | Gastrodon | OmegaRuby | Evolve Shellos (Lv. 25; West Sea) | |
| 423 | Gastrodon | Diamond | Routes 218, 221, Fuego Ironworks (Tall grass; West Sea)
Routes 222, 224, 230 (Tall grass; East Sea) | |
| 423 | Gastrodon | X | Friend Safari (Ground; West Sea) | |
| 423 | Gastrodon | White2 | Evolve Shellos (Lv. 25) | |
| 423 | Gastrodon | Black2 | Evolve Shellos (Lv. 25) | |
| 423 | Gastrodon | White | Trade | |
| 423 | Gastrodon | Black | Trade | |
| 423 | Gastrodon | SoulSilver | Trade | |
| 423 | Gastrodon | HeartGold | Trade | |
| 423 | Gastrodon | Platinum | Route 218, Fuego Ironworks (Tall grass; West Sea)
Routes 205, 218, Canalave City, Valley Windworks, Fuego Ironworks (Surfing; West Sea) Routes 212, 213, 224, Pastoria City (Surfing; East Sea) | |
| 423 | Gastrodon | Pearl | Routes 218, 221, Fuego Ironworks (Tall grass; West Sea)
Routes 222, 224, 230 (Tall grass; East Sea) |