At the time of writing on September 28, SteamDB shows roughly 22,800 players currently in Diablo IV, with a 24-hour peak of 49,734. The exact live number naturally moves throughout the day, but the important comparison is much harder to dismiss: when we checked Diablo IV on September 2, Steam was hovering around only 2,400 to 2,500 concurrent players.
The free weekend is gone.
The 75% discount is gone.
The players, apparently, are not.
This Was the Test We Were Waiting For
When we checked the numbers again on September 22, Diablo IV still had roughly 26,700 concurrent Steam players after free access ended. That looked promising, but there was one enormous asterisk attached to the number. Blizzard was still selling the Standard Edition for $12.49, down from $49.99, and anyone who had just spent the free weekend enjoying Season 15 had until September 24 to convert into a paying player at an unusually low price.
We therefore ended that article with a very specific prediction: the next meaningful checkpoint would arrive after September 24.
It has arrived.
Steam's weekend deal is over, and Diablo IV has not returned anywhere close to the quiet levels we saw at the beginning of the month.
The 24-Hour Peak Is Still Close to 50,000
The most surprising number may actually be the daily peak. SteamDB currently records 49,734 concurrent players during the last 24 hours. That is remarkably close to the peaks we were watching while the game was still free.
Back on September 19, during the promotion, the 24-hour peak sat at 48,865. Three days later, while the sale was still active but free access had ended, SteamDB showed another peak close to 50,000.
Now the discount is gone too, and the latest daily peak remains in roughly the same territory.
That does not mean the exact same 50,000 people have remained continuously since the free weekend. Concurrent-player figures cannot tell us that. Some players will be new buyers, some returning veterans, some long-term Steam owners and some people who spent $12.49 after trying the game for free.
But the trend tells us something useful.
Whatever brought people back to Diablo IV has survived the end of the promotion considerably better than a temporary free-weekend spike normally would.
Season 15 Has Given Players an Unusual Amount to Chase
The obvious candidate is Season of Hell's Legacy itself.
Season 15 has problems. We have spent much of the last two weeks documenting them. Prime Evil Powers can remain locked at Rank 24. Moophisto occasionally forgets that bosses traditionally drop items. Grief's headline Weapon Damage appears suspicious. Wirt's Lucky Coin has required multiple rounds of repair. Blizzard has now reached the point where even the apology gift for the messy launch has generated its own missing-reward reports.
And yet the season has also been unusually good at giving players reasons to log in tomorrow.
Our Season 15 secret checklist keeps expanding. Players have found hidden Diablo II Runewords, Uber Tristram, the Hellfire Torch, Whimsyshire, Mefishto, Bovine armor, a guaranteed Harlequin Crest and increasingly suspicious clues surrounding Annihilus and Uber Diablo.
Even when the game is malfunctioning, there is often something new to investigate while waiting for the hotfix.
BlizzCon Probably Helped Too
Season 15 also arrived immediately after Blizzard put Diablo back in the spotlight at BlizzCon.
Diablo V was announced. Blizzard revealed a new long-term direction for Diablo IV. The Amazon is coming in 2027. Diablo II: Resurrected continues receiving substantial development. Diablo Immortal is about to launch its Spawn collaboration.
That makes September unusually difficult to interpret as a simple seasonal comparison.
The Steam rebound is almost certainly not caused by one thing.
Season 15 arrived at exactly the same moment Blizzard gave former players several reasons to think about Diablo again. Then Steam removed the financial barrier for a few days and followed it with an aggressive discount.
The interesting part is that the promotional machinery has now stopped while the Steam population remains elevated.
This Still Does Not Tell Us Diablo 4’s Total Player Count
The usual warning remains necessary.
Steam is only one part of Diablo IV's audience. Battle.net players are not included. Xbox players are not included. PlayStation players are not included. Blizzard does not publish a live cross-platform population total that lets us convert SteamDB into a percentage of Sanctuary.
We therefore cannot say Diablo IV currently has 22,800 players.
We can say it has approximately 22,800 people playing simultaneously through Steam at this particular moment, and that Steam's daily peak remains near 50,000.
That makes Steam useful as a trend line rather than a census.
And the trend line has changed dramatically since September 2.
We Still Need to See Where the New Baseline Settles
There is another reason not to declare victory after one weekend.
Season 15 is still new. Anniversary discoveries are still being solved. Blizzard is still issuing patches. Gift of the Tree is currently providing additional rewards. Players who bought the game during the sale have barely had time to decide whether Diablo IV becomes part of their regular rotation or something they played enthusiastically for ten days before remembering they also own 412 other Steam games.
The more interesting number may therefore be the one we see in mid-October.
If Diablo IV eventually settles at 5,000 concurrent Steam players, then much of September's surge was temporary.
If it settles at 15,000, 20,000 or higher, Blizzard will have established a significantly larger Steam baseline than it had before Season 15.
We are not there yet.
But the first major retention test has now happened.
The Doors Cost Full Price Again
That is what makes today's number different from the ones we reported earlier.
On September 19, Diablo IV was free.
On September 22, free access had ended, but the game still cost $12.49.
Today, neither explanation applies.
SteamDB still shows more than twenty thousand people playing in the morning and almost fifty thousand at the latest daily peak.
At the beginning of September, we were wondering whether Diablo IV's Steam population had fallen into an end-of-season hole it might struggle to escape.
Four weeks later, Sanctuary is considerably louder.
The free weekend got people through the door.
The sale gave them a cheap reason to stay.
Now Diablo IV has to prove the game itself can keep them there.
