Roblox, the gaming company that went public earlier this year, has lessons for other internet outfits aiming to attract younger users even as its own audience gets older.

Roblox is an online platform for user-generated video games, offering cross-platform play and social features. The company generates revenue through the sale of virtual currency, game monetization ...

At Roblox Developers Conference, the company behind the game-creation platform laid out its plans for the future.