Hard to tell i guess, but the Darkness Falls Discord has about 3K members. Doesn´t mean all of them play the mod, but also not everyone who plays it joined the discord. I am the only one i our group of 5 who is in the discord and we play it regulary.
Yea, maybe TFP have some way of tracking that but otherwise it's a guess work. According to steamspy 7d2d sold 10M-20M copies. Let's be conservative and go for 10M. And let's be generous and triple the number of discord users to 10k (so the math is easy) DF players. It gives us 1% of all players. That math is wonky as there are too many unknowns though, but a number close to 1%-3% of all players using mods for 7d2d wouldn't really surprise me.
I don't know how we could get reliable stats. Admittedly I said that without actual backing numbers but I would bet you a mega crush that 7DTD have significantly more mod users than most games. Maybe not as much as Skyrim though.
The catch here is that what I meant by "active players" are the people who play it regularly on PC. As opposed to people who have it sitting in their steam library but did not play it very much or at all. And let's not talk about the console players, poor folks.
We can't get the stats. Maybe even TFP can't (unless they have some stats tracking built in). Though I would still guess that it's tiny minority of all TFP customers. In general modding is something you support in a game, because you either believe it's cool or you love your community. IIRC TFP founders originate from modding scene, so it might be both
