GTA Online, the multiplayer mode for Grand Theft Auto V, continues to perform well in terms of the money it’s making for parent publisher Take-Two and how many people are playing overall.

Speaking this week during an earnings briefing, Take-Two CEO Strauss Zelnick said players continue to be “highly engaged” with GTA Online. While he didn’t share any specific numbers, he revealed that GTA Online–more than two years after release–had its best week ever for both revenue and active players this past holiday. Before the holiday season, GTA Online was seeing around 8 million players a week.

Zelnick said this “sustained engagement” was partially attributable to developer Rockstar’s steady stream of free add-on content and in-game events. Zelnick specifically called out GTA Online’s Halloween and Christmas updates, as well as Executives and Other Criminals and Lowriders, as being “key contributors to the game’s record results.”

But will GTA Online slow down in 2016? Zelnick doesn’t think so. In fact, Zelnick said Take-Two is now forecasting that GTA Online revenue will actually increase year-over-year.

Rockstar has already released a new updated this year that added a new Drop Zone mode and more cars. A Valentine’s Day update is also believed to be coming later this month.

GTA Online is free with GTA V, but optional microtransactions are available.

Single-player DLC for GTA V is still under consideration, but these incredible numbers for GTA Online may explain why Rockstar might not be rushing to get it out the door anytime soon.

In other GTA V news, Take-Two announced this week that the game has shipped 60 million copies.

Are you still playing and enjoying GTA Online? Let us know in the comments below!