Seven hours ago, the service had the game’s sales at 1,074,894 with a margin of error of 80,049.
That’s just for sales through Steam as well, and so doesn’t include copies purchased elsewhere.
More recent stats aren’t yet available.
The game is currently top of the sales charts on Steam, and at the time of writing there were 233,040 people playing – more than any other game on the platform.
Here's what it looks on PC like with all settings maxxed.