Most-played.
One need only check out the current
SteamDB charts to verify that: In the top 100 games, Hearts of Iron IV is currently sitting at 26,132 players, which easily tops Europa Univeralis IV (15,130), Cities: Skylines (13,466), Crusader Kings III (12,790), Stellaris (11,663), and Across the Obelisk (10,004). Those numbers are pretty consistent with what I've seen in the past.
Paradox has mentioned on more than one occasion that HoI4 is their most-played game. I've heard that's at least partially due to the modding community, though I can't say anything about it myself (as I don't own the game).
« Last Edit: August 28, 2022, 03:42:49 AM by Martok »
"I like big maps and I cannot lie." - Barthheart
"I drastically overpaid for this existence." - bbmike