The 24-year-old 'Someone Like You' singer bought a house in Sussex last year and has been spending months to get it done.
She is now said to have bought games like Pac-Man and Space Invaders as well as two pinball machines and a shoot'em up with two guns, reported Sun online.
"She is kitting out her place with the latest mod cons (modern convenience). But she is still finding room for quirky gizmos such as the arcade machines," a source said.
"They'll have pride of place in her new games room," the source added.