An "evil serial sexual predator" convicted of 159 sex offences, including 136 rapes, will "never be safe to be released", a judge has said.
Reynhard Sinaga was found guilty of luring 48 men from outside Manchester clubs to his flat, where he drugged and assaulted them - filming the attacks.
Police say they have evidence Sinaga, 36, who is being named for the first time, targeted at least 190 victims.
The judge ruled his life sentence must include a minimum of 30 years in jail.
Reporting restrictions were also lifted at a sentencing hearing at Manchester Crown Court on Monday, meaning Sinaga could be identified for the first time.
The Crown Prosecution Service (CPS) said Sinaga was "the most prolific rapist in British legal history".
The post-graduate student was already serving life, with a minimum term of 20 years, for the offences he was convicted of in two earlier trials, which took place in summer 2018 and last spring.
Across four separate trials, the Indonesian national, from Manchester, was found guilty of 136 counts of rape, eight counts of attempted rape, 14 counts of sexual assault, and one count of assault by penetration, against a total of 48 victims.
The sexual predator who waited outside nightclubs
At the hearing, Judge Suzanne Goddard QC said Sinaga "preyed upon young men" who wanted "nothing more than a good night out with their friends".
"In my judgment you are a highly dangerous, cunning and deceitful individual who will never be safe to be released," she said - adding that the decision to release prisoners is made by the Parole Board.
Sinaga would wait for men leaving nightclubs and bars before leading them to his flat in Montana House, Princess Street, often with the offer of somewhere to have a drink or call a taxi.
He drugged his victims before assaulting them while they were unconscious. When the victims woke up many of them had no memory of what had happened.
At an earlier sentencing, the judge said she was sure that he had used a form of date rape drug such as GHB.
In victim impact statements read out in court, one victim said Sinaga had "destroyed a part of my life", while another said: "I hope he never comes out of prison and he rots in hell."
"I have periods where I can't get up and face the day," another added.
Several victims said the ordeal had had a serious impact on their mental health, with some developing suicidal thoughts.
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