A hotline was set up on Wednesday to report on those suspected of operating illegal gambling, Itar-Tass reported.
Moscow had around 550 gambling places, including 30 casinos in prime spots, symbolising the capital's love of excess.
Midnight on Novy Arbat street, the heart of the gambling scene, was muted as its flashing lights and loud music were turned off for the first time in over a decade.
"I'm upset but I guess I'll have a little rest and re-visit my job situation in August," said Elena, a slot machine operator who has worked in the gaming business for five years.
Each year gaming brought in up to $7 billion and paid $1 billion in tax, a gap the industry says will cause the state a budget headache.
The development replacement zones -- in southern Krasnodar, the Baltic enclave of Kaliningrad, east Siberia's Altai region and the Far East -- require investment of up to $40 billion and have not been built.

Parts of a dismantled roulette table are seen on a carpet of a gambling hall in Moscow, in the early hours of July 1, 2009. (China Daily/ Agencies Photo)"The zones have no roads, water or electricity. We fulfilled the law by shutting, the government did not fulfil it as the zones are not ready yet," said casino director Boyev.
The industry has raised eyebrows at government guarantees of work in restaurants and shopping centers that are to replace casinos when unemployment in Russia has hit an eight-year high.
But some addicted gamblers thought the ban might help them.
"Maybe this is all a good thing. I'm a family man and I come here every day and lose all my money. I'll be happy to see them go," said a 40-year-old Muscovite near the flashy Shangri-La casino in the city center.
Source: China Daily/Agencies【1】 【2】