There was some intense marketing too... Besides, there was also a limit to what I could do in a week while also having a full time job and a family. Plus the game had been downloaded thousand of times for each update on various websites, I really think the problem wasn't marketing or good ideas.
I do think that players are more hesitant to subscribe to new creators when the new game doesn't have a lot of content yet, that the market is saturated and that the big developers get most of the money. But who knows, maybe I was just unlucky or my game was too niche or I didn't churn out content fast enough to maintain interest, or it's something else entirely...
Having more genres / kinks or planned genres / kinks would likely help greatly in generating more interest, especially if they're optional kinks... ppl love options and hate forced content. As of right now, I have no interest in your game simply because your game provides no kinks / genres I'm interested in so it'll never come up in my search. Render samples look nice though. As mentioned, I'm one of those who also very rarely provide money support to new devs / new work in progress games mainly because there's far too many bad devs out there bailing out before the game is completed or they rush the ending just to call it complete despite all the support they receive.
If you have thousands of ppl downloading your game and you're a new dev, then you just have to have faith that once you're established and have gained a reputation for being consistent, ppl will become more willing to give money to you. You also shouldn't focus so much on the money making when developping a game as that will often show in-game like when devs suddenly add too many sex scenes or love interests just to appease the audience but it ends up ruining the flow of the story in the game. Create your game with passion and money will usually eventually show up later, even years after the game has been completed. They don't call it an investment for nothing. If you're struggling with money, then do something else and just create your game during your free time.
The horrible milking "devs" didn't just get all that support overnight. They initially worked hard and gained a reputation and probably had a bit of luck on their side with some media attention as well. From what I've seen over the years, unfortunately gaining a stable income is just as difficult as losing it. Once ppl start donating, they seem to forget about it and donate even years after it's been abandoned which is the most annoying part as it only encourages other devs to do the same thing (monkey see, monkey do).