Below, you can browse the list of all the places located in Ruins where you can find Rot companions. There are 8 such locations in total.
Rot, Ruins
Locations on World Map
1
Rot (Ruins #1)
Use Pulse to reveal the Rot, then collect it.
2Rot (Ruins #2)
Use Pulse to reveal the Rot, then collect it.
3Rot (Ruins #3)
Use Pulse to reveal the Rot, then collect it.
4Rot (Ruins #4)
Stand on the round plate and use Pulse. When you do this, stone posts will pop up after which you will be able to get into a cave hidden behind a waterfall. Use Pulse to reveal Rot, then collect it.
5Rot (Ruins #5)
It is in a chest. Simply approach it and open it.
6Rot (Ruins #6)
You will receive it (3 in total) automatically after defeating the Sprout and removing the corruption.
7Rot (Ruins #7)
You will receive it (3 in total) automatically after defeating the Sprout and removing the corruption.
8Rot (Ruins #8)
You will receive it (3 in total) automatically after defeating the Sprout and removing the corruption.