Excluding CK2, for obvious reasons, EU4 stabilized at 25.000 (with a skeleton crew, as the team shifted to Tinto in Barcelona), Stellaris went from 16.000 to 25.000 (56.5%), HOI4 from 45.000 to 70.000 (55%); which still looks better than CK3's 25%.
But I think this frame of reference totally misses the point. How does it make sense to compare the first five years of CK3's lifespan (which you would naturally, correctly, assume to be the most virile) to the last five of a game like EU4, which had started to receive ever less attention, being at the end of its lifecycle?
I think the more apt comparison is between the first five years of a particular title's release, which more or less amounts to my initial set of numbers.
Even then, though, I would feel obligated to qualify that as Paradox has gained more experience and funds, you would expect their first five years of each subsequent release to be better than the last one.
I would also note, as a matter of philosophy, that I am of the mind that absolute numbers bear less import than relative growth. I believe people's tastes are varied and diverse enough to afford just about every sort of genre the chance to crack AAA-numbers, so long as the public deems the game to be worth such attention and time.
All the more fascinating that even under your frame of reference, with all the critique I bear it, my initial observation still bears out.
Yeah, I don't know how people could see it any different.
As I've posted before
Not the best selling, the most successful one.
It had an 800% player growth over time while other titles like CK2 and EU4 had only "400%", so it clearly shows that whatever they've been doing after the game launched was very well aligned with their customers, it also happens to have the best total numbers of concurrent players as well. From a player's perspective CK3 had the best paradox launch, might have had the best selling game release for them as well, but whatever happened after that was a disaster.
"in terms of growth, for paradox if you discount Vic3 and Imperator.
Each new game grew the company's playerbase further.
CK2 started with nothing, stabilized around 1k and grew over the years towards 4k average players, a 400% growth.
https://steamcharts.com/app/203770
EU4 took the torch at around 3 or 4k stable and grew it's audience towards 15k average players, around 400% growth as well.
https://steamcharts.com/app/236850
HoI4, their most successful game, went from 5-6k stable to 35~40k, almost a 800% change.
https://steamcharts.com/app/394360
Stellaris, a game infamous for being broken and unplayable for over half it's life, remade into a different game at least 3 times (and 4.0 is promising a complete overhaul of the entire game yet again) went from an unstable 6k average to 15k+, over a 200% change.
https://steamcharts.com/app/281990
Meanwhile CK3 have remained around 13k since launch, at most you can say it might have gained 1k since T&T, very few of the DLCs were any good, most activelly make the game worse, the only REAL good one was RTP and the numbers show, finally making the average player numbers change with a lasting effect since launch, it has been running over 16k for almost half a year now, it's the first, and only, true "hit" DLC they've released.
CK3 had a stellar launch, but whatever possessed paradox since then was not well received by anyone until now.
Vic3 have followed the same disastrous DLC model, mind you, and it was killing the game, the military overhaul over a year ago did more to the game than most of the DLCs, and I only Sphere of Influence was truly a great addition to the game."
Nobody would contest CK3 had a very successful launch, in contrast with the failure of Imperator, one came out barebones looking like EU4 did, on launch, but a decade later, while CK3 at least seemed like it had some effort put into the game, it had a bunch of placeholders but the base of most of the game was there, everyone saw potential and eagerly awaited the future content.
Which never came.
The changed systems were mostly changed for worse, CK3 does a few extra things CK2 doesn't do at all, like traveling and culture mechanics, which are great, but CK2 still does a bunch of things CK3 doesn't do at all, like societies, coronations, papal sucession, trade routes, trade zones, and pretty much every actual government type except feudal christian up until recent years.
I mean, some people had the gall to claim in CK2 you could only play feudal but in CK3 all of the same governments were available from the start, if that was true, then wth was RtP supposed to be about? Why did they have to actually make clan mechanics in LoP? What is Khans of the Steppe even about?
CK3 seems like it only finally -started- it's development since RtP, everything else has been a failure and the numbers, and reviews, show, I'm fairly sure the higherups never noticed because the concerns of the community were being dismissed and not properly delivered to them, while they made the change from single sales to chapters and they had a lot of sales from people thinking the Ck3 dev cycle would look like what it did for Ck2, I personally know of half a dozen people and all of them bought the chapter 1 on launch, and all of them felt like they got scammed out of their money, Chapter 2 didn't do any better either, T&T was only "good" in comparisson to everything else, meaning, it's the best of the worst DLCs paradox ever made, I have a feeling it's going to start looking worse & worse over time now that paradox is finally delivering actual content with great hits like RtP Khans of the Steppe and what it looks like we're going to see in All Under Heaven, even Khans of the Steppe which is supposed to be a "smaller" DLC is far more impactful and important than anything released before RtP.
Now, to avoid being overly negative, praise where it's due, one of the main complaints CK3 players had, since launch, was that after years of development the game was not improved at all, and all DLCs felt like they added nothing to the game, if a player accidentally started a game forgetting to turn on all DLC there was a good chance he wouldn't even notice they were turned off.
This can't be said for RtP and Khans of the Steppe, so we're finally seeing a change in direction, we're finally seeing actual content being developed, which is great, one of the (possibly?) three greatest flaws of the game is being addressed, lack of content, bad AI, horrible balance/mechanics, I was honestly giving up on the game altogether as I wasn't even seeing an effort for years in any of these 3 areas, now it seems like paradox is starting to move, if only they could at least try to address the other issues...
PS: I also have a feeling the season packs have masked the failure of their disastrous changes to DLC policies to the higher ups, and it might mislead them again, as people are already fed up and have lost faith in the game, even if they start releasing great DLCs, it's going to take time for people to trust them enough to start buying these packs and show the results in actual sales.