Is all hollow Knight DLC free?

Related questions

1. How do you get different endings in hollow Knights?
2. When did hollow Knight come out?
3. Is Hollow Knight on PC?
4. Does hollow Knight switch have DLC?
5. Is Hollow Knight DLC on switch?
6. Is Hollow Knight on Xbox 360?
7. What is hollow Knight rated?
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Tags

1. #expansions
2. #which
3. #developer
4. #massive
5. #hidden
6. #after
7. #cherry
8. #dropped
9. #alongside
10. #dreams
11. #troupe
12. #knight
13. #catch
14. #godmaster
15. #releasing
16. #hollow
17. #final
18. #grimm