Yeah, video game ratings in Australia aren’t great. Australia didn’t even have an adult (R18+) rating for video games until 2013. Before then, all games rated higher than MA were illegal in Australia. Some games were banned, while others were modified to reduce violence, remove sexual themes, remove drug use, etc.
In Australia, I used to use them the opposite way as you: “mould” for the fungus, and “mold” to shape. These days I live in the USA and use “mold” for both.