I am not from Australia but from Germany, which has one of the more extreme censorship rules then it comes to nsfw video games. It is very comparable to Australia when it comes to adult games with sexual stuff in it as far as I heard.
For example, all nsfw adult rated games on steam are banned and cannot be accessed in Germany. I am aware there exist a few games with actual sexual content like witcher 3 who are available uncensored here as well but that is the only game I am aware off right now.
There might be some work arounds like a patch or other means but those are often considered a grey area, somewhere between the law. And yes, I think earning money with it would also cause problems in germany too. But I could be wrong and some information outdated, I am not too informed, I just try to avoid nsfw to stay out of trouble.
I don't want to risk my luck and later end up with jail or need to pay fines, so I just keep everything sfw.