Adult PC Game: An Aussie Abroad Ch.1 by Mickydoo Win/Mac Archive

You are what is known as an average "Oker" who finds himself in a house with four females in another country. One of whom you have known most of your life (Tori), the other three you have met but know little about them. Rumour has it that you and Tori's mother were lovers, and still are, and Tori suspects that's why you are here, but who knows for sure.
You now are living the mundane life as a single man in a house with four babes and possibly more, life's tough hey.​

An Aussie Abroad Ch.1 by Mickydoo Win/Mac Gameplay Preview