It almost sound like more people have access to L4D2, can play it on their hardware, and likely can only play it on Steam too. I never played the game (B4B either), but I somehow own it, likely for free on Steam, I wonder how often it was free, and then B4B costs a lot, is new, and have higher minimum requirements.Okay, but the October player numbers didn't even match August or May's numbers soooooo
from earlier in the thread, this is just normal for L4D2
Games that aim for mass audiences tend to make sure it can run on a toaster, and have a low barrier of entry (Fortnite, LOL, Farmville, etc.), L4D2 is pretty much in that category at this point, it's just not always free or on sale.