According to SuperData, Fortnite was the biggest free-to-play games title of 2018.

In September 2017, Fortnite Battle Royal became the game of choice for millions of teenagers around the world.

Within little more than a year, Fortnite had amassed 200 million registered players, according to Statista–and despite being free-to-play, the cross-platform game also turned into a major financial success for its developer Epic Games.

According to a recent report by SuperData, a digital gaming research company recently acquired by Nielsen, Fortnite generated $2.4 billion in revenue last year, the biggest annual take for any game in history, including free-to-play titles, which accounted for the lion’s share of the gaming market in 2018 as players spent $87.7 billion on additional features and virtual goods for their favorite games.

Fortnite was by no means the only cash cow of the growing industry. According to SuperData, eight other free-to-play games passed the billion-dollar mark in 2018, illustrating the biggest trend in game monetization.

1. Fortnite ($2.4 billion)
2. Dungeon Fighter Online ($1.5 billion)
3. League of Legends ($1.4 billion)
4. Pokemon Go ($1.3 billion)
5. Crossfire ($1.3 billion)
6. Honour of Kings ($1.3 billion)
7. Fate/Grand Order ($1.2 billion)
8. Candy Crush Saga ($1.1 billion)
9. Monster Strike ($1.0 billion)
10. Clash Royale ($0.9 billion)

©SuperData Research