In most Roblox games, your character is, well, just a block. But in Dress to Impress, users play as a highly customizable model, which appeals to the fashion-obsessed.

Roblox is rolling out virtual billboards with video advertisements, the gaming platform said on Wednesday, in its latest move to draw revenue from its games that are mostly free to play.

Roblox forecast annual bookings below estimates on Thursday, sparking fears that growth at the videogame platform was slowing after years of breakneck progress, sending its shares down 17%.