The Australian Classification Website reveals SILENT HILL f is the latest game to run afoul of Australia's guidelines governing content in video games (thanks Press Start). These rules are notoriously strict, and over the years many games have changed content in order to be freely sold in the territory. While sex, violence, and/or drugs are just weekend plans for some, these are the three main causes for games to earn this RC rating. But in this case the reason for the refusal is confusingly omitted. Apparently gamers who wish to know what's up will be informed on an individual basis, as this is the listed reason for the game's refused classification:

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