Which gaming platform first introduced a 'battle pass' subscription loyalty model that revolutionized free-to-play monetization and is now used across most major multiplayer games?

Customer loyalty programs in gaming and virtual worlds have evolved dramatically over the past decade, transforming from simple point systems to complex engagement ecosystems. These programs now influence player retention, in-game spending patterns, and even community development. This trivia question tests your knowledge about a groundbreaking loyalty innovation that changed how game developers think about player retention.

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

Fortnite (2017)
Dota 2 (2013)
League of Legends (2015)
PlayerUnknown's Battlegrounds (2016)