The 31-year-old winger, who is returning to Wests Tigers in 2014 after eight seasons with Wigan, is set to face the country of his birth and play rugby league in Ireland for the first time.
Ireland need to pull off a miraculous win over the World Cup favourites after losing to Fiji and England but Richards, who qualifies for Ireland through his parents, hopes Mark Aston's men can show some heart in their final group fixture.
"I have about 40 friends and family from Ireland coming to watch and a few friends coming over from the UK as well," Richards told the Wigan Observer.
"Playing in front of them and against Australia - hopefully we can go out and show a bit of heart and show what it means playing for the jersey.
"Australia is where I was born. I have an Australian accent and I'm going back to live there so, yeah, I have a lot of feelings for Australia as well.
"There will be mixed emotions but I'm going out there and looking forward to the occasion as it will probably be a few years before I get over to this part of the world again.
"I've never played in Ireland before so that's going to be a big occasion as well."
- Sports & Recreation