Despite pressure from competing platforms, Steam continues to be the home of PC gaming. Numbers released from this year’s Casual Connect in Seattle reveal that the company has added 1.5 million new users every month for the last 18 months.

Valve stopped crowing publicly about the size of its userbase years ago, so when numbers do trickle out it’s a big deal. GeekWire was seated in the front row of their presentation yesterday and snapped a few pictures of the slide deck, which shows an impressive 18 months of growth.

Valve’s Tom Giardino said that Steam added 27 million first-time purchasers since Jan. 2016. The service is averaging 14 million peak concurrent daily users, up from 8.4 million in 2015. There’s also been an influx of users from Asia. That region accounts for 17 percent of Steam’s sales so far in 2017.

Steam’s monthly user base continues to climb as well. Giardino said it was hovering around 67 million so far this year, tracking well above Xbox Live’s 53 million. You can check out the whole slide deck here.