Have you considered starting a Patreon and releasing several smaller updates, rather than one large update every 6 months.
I have, but peel behind the curtain here. I'm not a confident writer, and the way I make these updates is all maps->all mechanics-> all the image scenes-> any writing i haven't squeezed in in the other steps, because that lets me stew on how exactly I want the story to flow. If I was doing monthly releases, I would have to change my entire work process or I'd release a lackluster product that would slowly kill my motivation to do it. Plus, my work schedule is crazy hectic, so whatever free time I'd have, I'd have to devote solely to this game to meet quota, and thats just not appealing to me. This current model works just fine for my style.