Roblox Corp.’s users can create virtual worlds to fend off zombies or scuba dive for hidden treasure, with makers of the most popular games earning enough to become millionaires. Roblox co-founder ...

Roblox Corp. Chief Executive David Baszucki won the loyalty of tens of millions of videogamers with a do-it-yourself approach to play that defies the industry’s typical formula for success. Now Roblox ...