I only know of the Steam Charts.
Does anyone know what other reliable sources exist to account for the remainder of the current player base or is that information not open to the general public? If there are other sources, do they provide trending information similar to Steam’s?
I tried Googling around but could not quite make sense of what I was looking at (and therefore trust that it was apples to apples). I only ask this out of curiosity. A lot of thread discussions include suppositions regarding current number of players and whether those numbers have increased or decreased recently. The only reference I have seen regarding a source for actual numbers was to steam, so I was wondering if there were any others that people have come across and/or use.