I'm working on a game myself. Mind if I ask:

- How difficult was it to get on Steam and other vendors?

- Are there any artists you'd recommend working with? I need a 3D/Blender artist, especially.

Depending on the kind of artist you want I might be able to recommend some people, have you done this before?

I'm saying this as a gamedev who's had some mixed experiences, not an expert at this at all, so happy to pass on any useful tips if it's helpful

Drop me an email if you want to discuss more, email in my profile

Steam is simple - pay the $99 and follow the instructions.