I can't confirm if these are all the locations, but I have found 37 locations in 23 different tiles
So far, I've done 27 consecutive missions without a new location

• Ker, Ceres

My cache guides:
Ceres, Corpus ship, Deimos, Earth, Grineer ship, Hive, Jupiter, Kuva Fortress, Lua, Uranus, Void

Tile 1


Tile 2


Tile 3


Tile 4


Tile 5


Tile 6


Tile 7
1
2

Tile 8
1
2
Tile 9
1
2
Tile 10
Tile 11
1
2
Same room following the last screenshot
3
Tile 12
Tile 13
Tile 14
1
2
Tile 15
Tile 16
Hole in the wall
1
2
Same spot but above
Tile 17
Tile 18

Tile 19


Tile 20
1
2
Jump to the end of the room
3


Tile 21
1
2
3


Tile 22

Tile 23
1
2
3
4

Some secretive places I've come across

1
Another bigger room

2
Another bigger room

3
Another bigger room

4
A starting room

5
Tile 4 - This room goes really high, check there if you want but I don't usually

6
Tile 9

7
Tile 22 - Stairway to a room

https://youtu.be/KDUwmGvXao0

13 / 11 / 2024
Increased run count: now 27 runs without a new cache spawn