You cannot use Steam Direct to publish non-gaming software, but there is a way to submit a software for approval. Keep in mind that the majority of Steam’s audience are gamers and may not be in the market for anything else. In addition to games, Steam allows you to publish non-gaming applications such as game making utilities and content-creating software. Follow it while you sign up to learn more about the process. Steam’s introduction provides an overview of what you can expect to see in the next tabs and the content you are allowed to publish on Steam. You can use your existing Steam account to sign-up, just make sure it’s active, in good standing, and you’ve spent at least $5 at some point in the past.
Start by joining the Steamworks Distribution Program.