Digital Life-Review-Crushed by Candy Crush

King Digital, the makers of addictive app Candy Crush, has raised $499.5 million in an IPO that values the company at $7.1 billion. (Candy Crush HO/Associated Press)

The maker of addictive mobile game Candy Crush Saga has failed to impress investors in its first day of trading on the NYSE.

In early afternoon, shares in King Digital Entertainment PLC were down as much as 10 per cent to $20.22, following the company's successful IPO.

King Digital Entertainment PLC raised $499.5 million US in its initial public offering, valuing the Irish company at about $7.1 billion US. At its current stock price, the company is worth $6.4 billion.

Shares were initially priced at $22.50 each, the middle of the company's expectations, a figure investors found slightly too high.

King Digital had $1.88 billion in revenue last year, and reported a profit of $567.6 million. Its other top games include Pet Rescue Saga and Farm Heroes SagaThe company says it will use the proceeds of the IPO for working capital and other general corporate purposes.

with files from the Associated Press