This Should Be Illegal achievement in Nexomon: Extinction
Daniel Johnston
Updated on April 08, 2026
HOW TO GET VAULT KEYS:
1: At the beginning of the Game to the north then east from the orphanage, complete Salem want to play.
2: Parum, an old lady with a broom wants you to clean the city by collecting trash bags, they're all over the place so it's a very easy quest.
3: Frozen Tundra: lady behind guildcounter gives you a quest to explore a cave with a ghost in it.
4: Frozen Tundra: Freezing man next to the warpstone requests an Imburion & a Glantern, both fire type nexomon.
5: On the blue/ice bridget between the Outlands & Frozen Tundra Brase, a girl gives you a quest to retrieve her lost wedding ring. It can be found in the dessert just next to the cave to the east of Lateria.
6: Dragon island. To the west of the researcher's house (a platform with 3 bridges/an exit all directions, south of the city) there will be a quest from an old man after a Namansi, a normal type nexomon.
7: The talking tree in the spooky forest (just south of the ghost town) gives you a qust to catch two nexomons, Griffgar & Dreaver. Both can be found in the grass of the surrounding areas.
8: Once you've defeated the tyrant in Ignita during the storyline, there'll be a news reporter in the center of the city where the cut-scenes took place. Conduct the interview to recieve the key (This also is 1 of 2 locations for the interviews achievement).
9: Unmissable Key, given during story progression after the immortal city.
VAULT LOCATIONS
Spencer’s Vault #1
West of the Outlanders camp, there should be a cave covered up in weeds. After using the fire power, you’ll be able to enter. Inside the cave, go to the top-right corner and you’ll find an entrance to the vault room.
List Of Rewards:
Holoch Companion
Tribute of Power
550 Coins
Ghost Nexotraps
Spencer’s Vault #2
East of the Immortal Citadel lies a cave with a vault room. To get there, go east from the Immortal Citadel and keep going east until you reach the next area, further than the camp area (there should be an exit at the top-right corner). Go up and you should eventually find a cave. Inside the cave, go forward and use the wind power to jump to the next side, then head right until you find the vault room entrance.
List Of Rewards:
Malitress Companion
Tribute of Decay
550 Coins
2 Max Elixirs
2 Fire Nexotraps
Spencer’s Vault #3
Located in cave West-North of Ignitia
List Of Rewards:
Acegon Companion
Tribute of Blaze
550 Coins
2 Ultra Revives
2 Wind Nexotraps
Spencer’s Vault #4
After teleporting yourself to Ignitia, go east and through the routes until you’re in an area with where wild Nexomon can be encountered. Go down and follow the path. You should find a cave and someone outside of it. Enter the cave, go to the right entrance, and eventually, you’ll find the vault room.
List Of Rewards:
Vodo Companion
Tribute of Mind
550 Coins
Max Either
Electric Nexotraps
Spencer’s Vault #5
Go to The Drake Isles and head east. At the bottom-left corner, there should be a cave. Go inside, follow the route, climb up the stairs, make a left, and go up instead of leaving through the left exit. Keep moving forward and use the wind power to get to the other side. There should be an entrance to the vault.
List Of Rewards:
Wargovle Companion
Tribute of Tempest
550 Coins
Dragon Whisle
Spencer’s Vault #6
Located 2 screens south of frozen tundra in a mine shaft on right hand side.
List Of Rewards:
Tribute of Ocean
Blizstrong Companions
X Coins
Spencer’s Vault #7
Warp yourself to the Orphanage. Go left until you see the camp with the healer and several other NPCs. Go south and you’ll eventually come across an area surrounded by water to the left with a hole. Use the wind power to cross the water and enter.
Spencer’s Vault #7 should be inside after going through the top-left entrance.
List Of Rewards:
Lioness Companion
Tribute of Thunder
Coins
Spencer’s Vault #8
Teleport to the Frozen Tundra Base. Move down and then left to enter the next area. It should be a bridge. Cross it and move to the next area. Go down the stairs and go next to the tamer. There should be a cave above him. Enter it.
Inside at the top-left corner of the cave, there should be stairs. Go down it and enter the next area. Follow the direct path until you discover two routes – one leading to the vault room and the other leading to an exit. Go to the vault room.
List Of Rewards:
Raksuma Companion
Tribute of Nature
500 Coins
Golden Nexotrap
Spencer’s Vault #9
Teleport to Lateria and go to the east exit. Keep going right and you’ll eventually find a cave surrounded by water. An old, explorer tamer should be on the left side seeking a battle, claiming it’s his cave. Use the power to freeze the water and enter the cave. Straight ahead should be an entrance to the vault to claim the goodies.
List Of Rewards:
Lunabelle Campanion
Tribute of Stone
450 Coins
Discount Voucher