If you buy a steam code via other means than the steam store, they don’t take a cut, and the distribution, hosting, etc is in fact free. Same for steamworks (so

If you buy a steam code via other means than the steam store, they don’t take a cut, and the distribution, hosting, etc is in fact free. Same for steamworks (so the achievements you mentioned). This is utilized by some publishers who sell keys on their own website, same for e.g. humble bundles. So yeah, it is in fact a 30% cut for just the store and visibility.