and for the Adelaide Casino to better compete with casinos interstate and overseas," the Government said.

"The Government has been very clear with the Adelaide Casino that they must have systems in place to identify and prevent problem gamblers from accessing premium gaming areas."

Casino will be 'mini Trump-like tower'

Senator Nick Xenophon said the definition of high roller "seems to be very rubbery at best".

He said the expansion would "cannibalise" the revenues of small and medium-sized businesses and drive a rise in problem gambling in Adelaide.

"This expansion is going to be a misery magnet for gambling addicts," he said.

The original "no pokies" MP said Adelaide had so far avoided a gratuitous, glitzy American-style casino complex.

"Until now we've had a fairly low-key casino visually. This will turn it into a miniwho can come in and access those premium gaming areas," the Minister said.

"So it's more about being able to attract more people into the facility rather than what level of tax they'll be paying to the Government."

He said there was no government financial incentive to secure the deal.

Early works have already begun, with the expansion of the Casino to start early next year and the upgrade due to be completed in 2020.

Skycity said up to 1,000 jobs would be created during the construction phase and there would be 800 jobs at the Casino after the facelift was completed.

The redevelopment is part of a broader plan to revitalise Adelaide's Riverbank area.

The state's Development Assessment Commission has already said it was satisfied the proposals met key objectives of the plan.