Which gaming company pioneered the 'seasonal battle pass' monetization model that revolutionized free-to-play game revenue strategies?

Virtual worlds and gaming platforms have evolved into complex economies with sophisticated retail strategies. The intersection of gaming and e-commerce has created innovative sales techniques unique to digital environments. Test your knowledge about how major gaming companies have leveraged virtual retail spaces to drive revenue and engagement in their virtual worlds.

This is a live public trivia poll on AIPolls.Net. Vote and see real-time results.

Epic Games (with Fortnite)
Valve Corporation (with Dota 2)
Riot Games (with League of Legends)
Activision Blizzard (with Call of Duty)