Australia has banned, or heavily censored, many games.

Hotline Miami 2 still isn't allowed in the country (with the devs outright saying that Aussies should just pirate the game. Left 4 Dead 2 was censored for years (removed zombie cops and zombie bodies would vanish after being killed, often before even hitting the ground). Even Disco Elysium: The Final Cut was originally refused classification (what the government calls banning a game*) until there was enough outrage.

And then there's shit like how they've forced changes like how Fallout 3's Med-X was originally going to be Morphine and show the user taking it, before Australia said "no" to that, and Bethesda decided to just keep the game as one consistent entity and change it for everyone.

Australia is a nanny state, and always has been. And this is even with an R18+ rating that we only got in 2012. Mind you, it's rarely fucking used, but it's there. This is a decent site that seems to document a lot of the titles that get Refused Classification or have issues with classification within Australia, along with looking into the supposed reasonings.

*Refused classification is banning a game because all games are required to be classified under the rating system. If it's not classified, it cannot be released within Australia, so refused classification is defacto censorship.