Gameworld Gamma was a lush, green planet owned by Mr and Mrs Pakoo in the year 5,000,000,000. There they hunted humans for sport. The Tenth Doctor and Rose Tyler visited the planet in search of lectra energy leaks as part of their search for the missing guests of Platform One. Finding themselves in the middle of a human hunt, they rescued the prey (who had been purchased from a pet shop). The Doctor stopped the pursuing Huntmasters by using the sonic screwdriver to ignite swamp gas. When they found the psychic paper, which identified the Doctor as President Kaakaa's personal assistant, they apologised to the Doctor. He immediately declared a ban on human hunting and ordered them to return the surviving humans home. (COMIC: The Hunt of Doom)