If you just want to avoid Steam specifically, you can get the game DRM-free (meaning you own the files and don't need a launcher to run them) on
Using Yuzu on PC allows you to play the Switch version of Cuphead. To do this legally: The Files: You need the base game file and the DLC update file. descargar cuphead dlc para pc gratis sin steam yuzu
If you’re looking to dive back into the Inkwell Isles, here is the "real talk" on how to get it running smoothly and why the DLC is worth the legitimate entry fee. 1. The Yuzu Route (Technically Speaking) If you just want to avoid Steam specifically,