I don't have any plans to release on Steam any time soon. I don't expect to sell the game for a high price when I release on itch.io, so hopefully it will still be affordable even when converted to Brazilian Real!
Hi. If you ever do consider releasing on Steam, please chat to us as we developed two popular solitaire combat games (Shadowhand and Ancient Enemy) and we also publish games on Steam. All the best with the game. Jake Birkett