I hate to say it, but the only thing that can explain this kind of sudden jump is error in data.

According to these new numbers from Valve, the Linux customer base is up to 1.96%, or a 0.52% jump over June! That’s a huge jump with normally just moving 0.1% or so in either direction most months…

so I assume it was at 1.44% in June, which means… like a 35% increase?

Just tried Steam for Mac the other day, and there is a very good reason why it’s so low. Modern macs don’t even let you play games made for Mac!! Since 32-bit support was dropped, you pretty much can’t play any Source games like HL2 or Gmod.