The Victorian Greens gathered at the launch in Melbourne on Thursday evening, attended by hundreds of party faithful.
"This is our moment," Victorian Greens leader Ellen Sandell told AAP.
The party unveiled a suite of policies including a $350 million pledge to trial 10 state-owned supermarkets for four years.
The move is inspired by New York City Mayor Zohran Mamdani's plan to establish a public grocer in each of the city's five boroughs.
"We're taking a leaf out of Zohran Mamdani's book and know so many of his bold ideas can translate here in Victoria," Ms Sandell said.
The plan is designed to deliver essentials at a 30 per cent discount compared to major chains including Woolworths and Coles, saving the average Victorian household an estimated $4274 a year.
The Greens also pledged to $1 billion into community safety over four years in a program also inspired by one introduced by Mr Mamdani.
While the party hopes frustrations with a 12-year-old Labor government will boost its odds, polls point to a three-way race between the incumbent, the coalition and an insurgent One Nation.
But all is not lost, according to senator David Shoebridge, who took the charge of the federal leadership last week.
"It's been 12 years of Labor. What has it got us?" Senator Shoebridge said.
"So can we make this commitment right now? That if you are door-knocking, double down and double the door knock.
"That when you're a bit knackered at the end of the day on a Saturday, knock four more doors."
Senator Shoebridge said it was time to take back the country, and it started in Victoria.
The Victorian Coalition and Labor government also made respective pledges on Thursday, weeks out from the November 28 poll.
Opposition Leader Jess Wilson committed $10.4 million to help bring an Australian-first cancer treatment to Victoria.
Melbourne's Peter MacCallum Cancer Centre would host the country's first proton beam therapy service, a highly targeted form of radiation treatment.
It uses high-energy protons rather than traditional X-ray photons to destroy cancer cells while reducing damage to healthy tissue.
Ms Wilson said Victoria should be "leading the nation" in its cancer care, calling on the federal government to match her funding commitment.
Pressed on the Coalition's pledge, Premier Ben Carroll said it would cost $80 to $100 million, far more than they had budgeted.
His comment came while he announced that a re-elected Labor government would deliver 150 new fire trucks by 2030.
The $167 million commitment would deliver 100 tankers to the Country Fire Authority and 50 to Fire Rescue Victoria, added to rolling replacements.
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