SHE grew up playing Donkey Kong in the back of her parents' car on long drives from her Ruse home.
But now Siobhan Reddy sits alongside the Queen, JK Rowling, Adele and Victoria Beckham in a list of the top 100 most powerful women in Britain.
Ms Reddy, 33, left Campbelltown at 18 to follow her dreams of developing computer games.
She said she had "no idea what I was doing" when she moved to England.
But after winning a production award at the first ever Microsoft Women in Gaming Awards in 2009 and now judged by the BBC to be one of 100 women to have the greatest impact on British politics, society, culture and the economy, it's fair to say the move paid off.
"It was a total surprise and I feel very honoured to be in such amazing company," Ms Reddy told the Advertiser from London.
"It's really great that video games were represented on this list and so I am really happy about that."
She founded UK development studio Media Molecule.
Ms Reddy went to Campbelltown's St Thomas More Catholic School and Macarthur Anglican College where she fell in love with technology and art.
"I made a lot of different friends in Campbelltown, lots of people in my youth were really into music and art," she said.
"I was really lucky that Murray Benn, a teacher at Macarthur Anglican took a real interest in the fact a few of us wanted to explore film making and technology.
"He was a real enabler, and wasn't even my teacher. I am always grateful for that."
One of five children, she comes back to Campbelltown once a year to visit her parents Chris and Yvonne.
"We're so proud of her," Mrs Reddy said.
"We were overwhelmed to hear of this latest accolade but she is so humble."
Ms Reddy said she misses Campbelltown's people and "eating Sydney Fried Chicken chips with my sister Mary-Claire".
To see the list go to: www.bbc.co.uk/programmes/b007qlvb/features/power-list.