It has a listed price on BandCamp because of distributor / lisencing protection. You can download it on Itch and listen to it for 100% free though.
If I set the price to 0$ it'd open up the doors for false claims, I've had this issue with Jam submissions in the past that I put on streaming services (Primarily with Apple Music).
But yeah, you can listen to this and download it 100% free.