Hello Pirot King,
Will the game be available on steam in the future?
Some advice. To increase your chances of passing GOG's curation, you (or the users) should create a GOG Dreamlist page. However to create a GOG Dreamlist page, your game must first exist on IGDB.com. So please create an entry on IGDB, so it could then sync with GOG's Dreamlist, so we could create a page and vote for the game.
STEAM/Valve seems to be of multiple minds on AVNs these days. Not just 2 minds... I mean it when I said Multiple Minds. They just plain cannot keep a straight line of thought on the content of these games much less standardize their offerings to match it. SO. Do not be surprised if in 6 months you find more games with far more not so clear characters in it for sale there.