Space Invaders

 was an arcade game invented some time after 1972. (COMIC: Moving In)

Ellis used a coin he stole from Si to play the game. (PROSE: Loose Change)

Ace spent half her time in her Computer Studies class playing Space Invaders. (PROSE: Timewyrm: Apocalypse)

Rory Williams had a Space Invaders t-shirt which the Eleventh Doctor thought didn't blend in very well in the 1930s. (PROSE: The Glamour Chase)

The Twelfth Doctor claimed to be a "dab hand" at the game. (COMIC: Moving In)

Behind the scenes
A Doctor Who-themed version of Space Invaders was included in the 1983 video game The First Adventure.