Steam is just the storefront. A game publisher's role varies a lot - sometimes they're just financing the project, usually they handle stuff like PR and marketing, and sometimes they help quite a bit more with the development of the game (sounds like the case in this case based on his other answers) as in programming/art/sfx/whatever else.
Steam is just the storefront. A game publisher's role varies a lot - sometimes they're just financing the project, usually they handle stuff like PR and marketing, and sometimes they help quite a bit more with the development of the game (sounds like the case in this case based on his other answers) as in programming/art/sfx/whatever else.