Titanfall‘s launch for Xbox One this month helped Xbox Live on the platform enjoy its “biggest week in terms of users and usage,” Xbox boss Phil Spencer told GameSpot today at GDC.

Spencer didn’t reveal specific Xbox Live usage statistics, and he doesn’t have access to Titanfall sales numbers because the game is published by Electronic Arts.

The very same day that Titanfall launched earlier this month, Xbox Live suffered through stability and connectivity issues, but this was not the game’s fault, Microsoft said.

For more on Titanfall, check out GameSpot’s review.