Gameworld Gamma

Gameworld Gamma was a lush, green planet owned by Mr and Mrs Pacoo in the year 5,000,000,000, who used it to hunt 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 Humans (who had been purchased from a pet shop) and the Doctor stopped the pursuing Huntmasters by using the sonic screwdriver to ignite the swamp gas. When they found the psychic paper, which identified the Doctor as President Kaakaa's personal assistant, they apologized to the Doctor, who immediately declared a ban on Human hunting and ordered them to return the surviving Humans home. (DWBIT: The Hunt of Doom)