Cath said she loves the challenge the game gives her and plays it every day.
She told the BBC’s Radio Scotland Breakfast programme: “It’s a lovely, lovely game. The one I play is Battle Royale Last Man Standing and you go into it either as a solo, duo or squad.
“You’re trying to get the better of your opponents and eliminate them.
“But there’s no blood on the scene – you just shoot somebody and they either crawl about until they die or they’re just obliterated with the one shot. So there isn’t any mess – nothing like that.”
Cath said the community of people playing the game was more important than the game itself.
“I play with some wonderful folk – from the UK, quite a few from the USA, from Canada, New Zealand and Australia,” she said.
“It’s super meeting all these folk. The chat we have, it’s lovely – I’ve had folk with me for quite a few years now.”
Alice Bell, editor of Guinness World Records Gamer’s Edition 2027, said: “At Guinness World Records we believe gaming is for everyone.
“This edition showcases gamers of different generations and cultures from around the world.