"I was absolutely king-hit, and not just once. I remember someone saying something about my wallet but he was already throwing the punch. It had landed before he finished his sentence," the victim said.
"I've now been to the police [station] to see the [CCTV] footage and two guys were unloading, just throwing massive haymakers into me."
He said he wouldn't play pokies or go to a bar again.
His right arm was broken and there were "massive bruises" up his left.
As well as a concussion, he received 15 stitches in his left hand from a gash.
"My eye was closed, and I have a vague recollection of getting kicked in the head. That may have happened then," the victim said.
"It was unbelievably ruthless."
He said the footage showed him standing up and staggering onto St Hill St, before he collapsed and was set upon again.
The attackers eventually fled and he managed to get back inside the Grand Hotel.
"If these guys get away with it then they will do it again, for sure," he said.
"This wasn't like a pub fight or something. I don't know these dudes and it was aggravated robbery.
"I don't want this to happen to someone else, you know?"
On Tuesday a police spokesperson said inquiries into the incident were still ongoing.
The Criminal Investigation Branch (CIB) was now involved.
"At this stage we have been unable to identify the offenders," a police spokesperson said.
"Anyone with information should get in touch with police on 105 and quote file number 220529/5312."
