This reddit post says:

As seen on the recent GameDiscover article, Valve’s Steam presentation at GDC confirmed that Simplified Chinese has ever so slightly surpassed English as the primary language on Steam. Important to note, this isn’t based on the ever-fluctuating hardware survey that Steam has. It is based on a report straight out of the horse’s mouth.

Edit: incredible things are happening in the comment section

But there’s also folks like this suggesting the sinister sisipee is using western games as a digital opium to pacify their disgruntled comstituents: