Gaming platform operator Roblox has raised $520 million and announced plans to go public via a direct listing. Altimeter Capital and Dragoneer led the company's Series H, with The Investment Group of Santa Barbara, Warner Music and other current backers also investing. The latest funding values the company at $29.5 billion. Last February, Roblox was worth $4 billion after raising a $150 million Series G, according to PitchBook data. Late last year, the company had filed for an IPO, but reportedly postponed its public debut after DoorDash and Airbnb experienced share-price jumps on their first trading days.