Roaming Pokémon are rare Pokémon that can be found randomly while on routes. Each Region has a set of Roaming Pokémon that can be caught. So far, only Mew and Manaphy have no requirements to appear.
For a breakdown of roaming chances on every route, visit the Route Statistics page.
The chance to encounter a roaming Pokémon is 1/8192 for the first route of a region, and increases linearly up to 1/4096 for the last route of a region."First" and "last" here refer to the health of the Pokémon on these routes, not necessarily the order they are unlocked. This means that a route you can 1-shot will always be at least as efficient as a route you can't, so it is recommended to idle on the highest route number you can 1-shot if you need them.
An NPC in each region can inform the player of a specific route in that region where the odds of encountering Roaming Pokémon are tripled. The boosted route changes every 8 hours.
|Region||Roaming Pokémon||Unlock Condition|
|Kanto||Mew||No current requirement|
|Johto||Entei||Clear Burned Tower|
|Hoenn||Latios||Become the Hoenn Champion|
|Sinnoh||Manaphy||No current requirement|
|Cresselia||Clear Fullmoon Island|
|Mesprit||Clear Lake Verity|
|Unova||Tornadus||Defeat the Opelucid City Gym|
|Meloetta||Become the Unova Champion|
|Kalos||Zapdos||Clear the Sea Spirit's Den|
|Hoopa||Become the Kalos Champion|