So you would become a game provider, offer GAAS (Games As A Service)? I've seen these type of flash games before in the early 2000's after banner ad revenue collapsed. They do all the coding and you send them traffic - they send you revenue.
I doubt such games would work in a privacy-centric industry such as this, because they are hosting on greedy, third party websites and they will do anything with your PII. However, if you were to offer a system where the website could access your game on their own website, that would be an interesting idea. Your game mechanics, but I control the data.
I don't think flash is supported by Firefox and I see all gthe images maps etc in Villages Online so I think they must use HTML5 or just put it all together using normal HTML, I cannot recall after so many years though I did when I set it up to test look at the code.
The whole thing would be free open source so they'd be free to run the whole thing themselves.
I merely wondered whether if someone did run it anyway, would there be any interest from others in framing or widgeting it to "include" it as something to do with their site.
I had been told someone wanted a game to give away free ads for example, so it occurred to me one way a game could do that for them would be to set them up as things players could "win" by sending various quantities of various resources or manufactured objects or even the game's currency/gold to some depot not yet implemented that would have unlimited storage for such things or simply vanish them from the game but keep track of which players had sent it how many of what.
Generically though many games could be amenable to such uses, so if in general there were a worthwhile market out there entire families of games could be adapted to such use.
As to actually running a games as a service business I would probably try to leave that to others since I already lack enough weeks in each day to get everything done I want to do for my metagame, the Galactic Milieu.
I have though of course been outlining approaches that would be assimilable by the Milieu in that as the Milieu I could run it myself once it is (as free open source, at least) coded or even if not free open source but rather a third party service my outlines still aim at them being able to be of service the Milieu as simply as having themselves some Milieu coins or tokens on hand they can dole out to players.
-MarkM- (We are Milieu, prepare to be assimilated! )