Epic Games’ iOS port of smash hit Fortnite has earned more than $15 million in its first three weeks on the market, says mobile analytics firm Sensor Tower. According to the company’s most recent report, Fortnite on iOS is now out-earning mobile heavyweights like Candy Crush Saga, Clash of Clans, and Pokémon Go on a weekly revenue basis, earning $6.4 million in the last seven days compared to Candy Crush Saga’s $5.8 million. Granted, those games have all been out for years, with Candy Crush Saga now a six-year-old mobile game. But each game on that list has remained at the top of the App Store for years, and they’ve each matured into massive and stable revenue-generators. Fortnite, at least for now, is leading the pack.