Anders Breivik, the Norwegian right-wing extremist who systematically slaughtered 77 people, has said that unless he is given better video games in jail he will go on a hunger strike.

In a four-page hand-written letter to penitentiary officials, Breivik described the prison where is being held as “hell” and made a list of 12 demands to improve the “torture-like” conditions he claimed he is being forced to live in.

Breivik's requests include that the Playstation 2 he has access to is replaced by a more recent Playstation 3. “Other inmates have access to video games for adults while I can only play the less interesting children video games. One example is ‘Rayman Revolution,’ a game designed for 3-year-olds,” the 35-year-old wrote.

He also wants a computer to replace his “worthless” typewriter, Agence France-Presse reported.

Breivik was sentenced to 21 years imprisonment for his bombing near government buildings in Oslo that killed eight people, and a mass shooting on the island of Utoya that left 69 people, mostly teenagers, dead.

Breivik, in solitary confinement since 2011 for security reasons, claims he has behaved “in an exemplary fashion” and deserves an improved “activities offer” compared to other inmates.

He also requested a sofa to replace the “painful” chair in his cell and that his weekly allowance be doubled to £60.

"You've put me in hell ... and I won't manage to survive that long. You are killing me," he wrote in a letter to prison authorities In November.

"If I die, all of Europe's right-wing extremists will know exactly who it was that tortured me to death.

"That could have consequences for certain individuals in the short term but also when Norway is once again ruled by a fascist regime in 13 to 40 years from now."

Breivik outlined the details of his requests to news agency AFP, where he insisted hunger-striking was a last resort after there had not been any improvements to his prison conditions.

He said: "The hunger strike won't end until the Minister of Justice (Anders) Anundsen and the head of the KDI (the Norwegian Correctional Services) stop treating me worse than an animal."