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.

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

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

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

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.

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

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.

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

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.

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

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.

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.

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.

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.

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

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

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

Repeatable Methods
Location | Method | Screenshot |
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Dehara Dept. Store – 3F | Purchase from the cashier NPC for 10,000 PokeDollars | ![]() |
Route 9 – Raid Den |
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Thundercap Mountain – Raid Den |
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Gurun Town – Raid Den |
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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 |
