Persistent-world online shooter Destiny will likely cost Activision about US$500 million to launch, the publisher says.

As reported by Reuters, Activision CEO Bobby Kotick mentioned the half-billion dollar figure at a conference in Los Angeles last week.

"If you're making a $500 million bet you can't take that chance with someone else's IP," said Kotick.

"The stakes for us are getting bigger."

A spokesperson has since confirmed the ballpark figure, but emphasised that it will include "marketing, packaging, infrastructure support, royalties, and other costs".

"Bungie's very ambitious plan is designed to unfold over a 10-year period," said the spokesperson said.

"The depth of creative content, scope and scale is unprecedented and is required to bring Bungie's vision to life."

Analysts speaking to Reuters estimated that the game would need to sell 15 million units or more just to break even, and said that in-game monetisation mechanics are likely.

Yesterday at Activision’s fourth quarter earnings report, Kotick said his company expects Destiny to be the publisher's "next billion dollar franchise" and "the best-selling new video game IP in history".

Destiny is expected to launch in September on PlayStation 3, PlayStation 4, Xbox 360, and Xbox One.

Bungie recently said that bringing the game to PC version was “complicated”, and that it had its hands full with the four launch platforms.