Locations
# Method Repeatable
1 Thundercap Mountain – Item down the stairs at the western side of 5F (requires Strength) No
2 Dehara Dept. Store – Purchase from the cashier NPC on 3F for 10,000 PokeDollars Yes
3 Route 9 Raid Den – Dropped by Charjabug of 2 and 3 star species (50% chance) and by Vikavolt of 4/5/6 star species (50% chance) Yes
4 Thundercap Mountain Raid Den – Dropped by Magneton of 3 star species (50% chance) and by Magnezone of 4/5/6 star species (50% chance) Yes
5 Gurun Town Raid Den – Dropped by Pikachu of 3 star species (50% chance) and by Raichu of 4/5/6 star species (50% chance) Yes

The easiest way of acquiring a Thunder Stone in Pokemon Unbound is by purchasing it from 3F of the Dehara Department Store for 10,000 PokeDollars. You can do this as soon as you reach Dehara City.

Alternatively, you can find a Thunderstone as an item on 5F of Thundercap Mountain. They can also be obtained as drops from the Raid Dens on Route 9, Thundercap Mountain, and Gurun Town.

Once-only Methods

Thundercap Mountain

Start at Epidimy Town’s PokeCenter:

Step 1: Head to the southeastern end of town till you arrive at some stairs next to a sign.

Moving to the south of town / Pokémon Unbound
Moving to the south of town

Step 2: Enter the cave next to the wall here – this leads to Thundercap Mountain.

Entering Frost Mountain / Pokémon Unbound
Entering Frost Mountain

Step 3: Make your way over to the northeastern end of the room and use the ladder here to go up to 2F.

Path to ladder leading to 2F / Pokémon Unbound
Path to ladder leading to 2F

Step 4: Use the stairs on your right to go down and head back up using the stairs directly in front of these.

Going down the first set of stairs / Pokémon Unbound
Going down the first set of stairs

Step 5: Move over the bridge here and follow this path to its end.

Crossing the first bridge / Pokémon Unbound
Crossing the first bridge

Step 6: Walk down the stairs and head to the puzzle on your northeast with the set of boulders.

Use Strength to push the boulders and clear up your path.

Path to the boulders puzzle / Pokémon Unbound
Path to the boulders puzzle

Step 7: Move further northeast, past the stairs and continue in this direction till you reach the eastern end of the cave.

Moving to the eastern end of the cave / Pokémon Unbound
Moving to the eastern end of the cave

Step 8: Take a few steps to your north and climb the staircase here.

Go across the bridge to your right and use the ladder at its end to head up to 3F.

Path to ladder leading up to 3F / Pokémon Unbound
Path to ladder leading up to 3F

Step 9: Now on 3F, push the boulder in front of you onto the white tile and use this to skip over the water to the other side.

Then head to the top of this piece of land to find another, similar boulder.

Skipping over the boulder / Pokémon Unbound
Skipping over the boulder

Step 10: As done previously, push this boulder on the white tile and use it to skip across the water.

Skipping over the next boulder / Pokémon Unbound
Skipping over the next boulder

Step 11: Do the same for the boulder at the top of the land you just skipped to and head into the cave at the north.

Solving the first boulder puzzle / Pokémon Unbound
Solving the first boulder puzzle

Step 12: Use the exit at the eastern end of this room to go back to the 3F cave area.

Heading back to the cave / Pokémon Unbound
Heading back to the cave

Step 13: Push the boulder at the bottom to the white tile on its right and then skip across the water to the other side.

Solving the second boulder puzzle / Pokémon Unbound
Solving the second boulder puzzle

Step 14: Again, push the boulder here to its corresponding white tile and then jump to the other side.

Do the same thing for the next boulder.

Skipping across the water / Pokémon Unbound
Skipping across the water

Step 15: This is the final part of the puzzle.

Push this boulder to the tile at the bottom and skip to the other side. Then use the ladder here to head up to 4F.

Solving the boulder puzzle / Pokémon Unbound
Solving the boulder puzzle

Step 16: Now on 4F, the path here is linear.

Follow it to its end where you’ll find a Chansey and a ladder you can use to move up to 5F.

Heading to the end of 4F / Pokémon Unbound
Heading to the end of 4F

Step 17: Head to the western end of this area to arrive at the first set of stairs on your north.

Moving towards the stairs / Pokémon Unbound
Moving towards the stairs

Step 18: Go up the stairs here and head west again till you reach the end of the path. Walk down the stairs here.

Path leading to the next stairs / Pokémon Unbound
Path leading to the next stairs

Step 19: The Thunder Stone is inside the PokeBall down the stairs.

Exact location of PokeBall containing the Thunder Stone / Pokémon Unbound
Exact location of PokeBall containing the Thunder Stone

Repeatable Methods

Location Method Screenshot
Dehara Dept. Store – 3F Purchase from the cashier NPC for 10,000 PokeDollars
Route 9Raid Den

  • Dropped by Charjabug of 2 and 3 star species (50% chance)
  • Dropped by Vikavolt of 4/5/6 star species (50% chance)
Thundercap MountainRaid Den
  • Dropped by Magneton of 3 star species (50% chance)
  • Dropped by Magnezone of 4/5/6 star species (50% chance)
Gurun TownRaid Den
  • Dropped by Pikachu of 3 star species (50% chance)
  • Dropped by Raichu of 4/5/6 star species (50% chance)

Uses

There are a total of 7 Pokemon that can evolve using a Thunder Stone in Pokemon Unbound.

Use a Thunder Stone on To evolve into
Pikachu Raichu
Pikachu (on a Beach) Alolan Raichu
Eevee Jolteon
Magneton Magnezone
Nosepass Probopass
Eelektrik Eelektross
Charjabug Vikavolt
Back to: Evolution Items