A 35 per cent stake in the company - known as Game Digital - has been sold in the flotation, allowing shareholders to secure £101 million and the company to book proceeds of £20 million.
Hedge fund Elliott Advisors, which owned more than 90 per cent of Game after backing a rescue deal led by private equity firm OpCapita, is retaining a significant stake in the business.
Game's turnaround comes after administrators and its new owners shut around half of the outlets to scale back a costly store base which, coupled with heavy competition from online rivals, led to its demise.
It is now debt-free after reportedly owing creditors around £180 million when it filed for administration in March 2012.
Under the flotation, which is short of initial expectations for a valuation of £400 million, some 20,000 of Game's most loyal customers in the UK will be handed virtual loyalty shares which track the value of the company's stock.
It has also established a share ownership plan for staff.
Chief executive Martyn Gibbs said the business had been able to attract high quality investors.