Key Takeaways
- Modern Warfare 4 peaked at 227,434 concurrent Steam players during its opening weekend — a strong launch for the franchise.
- That puts MW4 roughly 26% behind Black Ops 6’s launch spike of ~306,460, a gap of about 79,000 players.
- It is, however, a massive improvement over Black Ops 7, which peaked at only around 100,000 concurrent Steam players during its 2025 launch.
- Black Ops 6 had a key advantage: it launched day one on Xbox Game Pass, which MW4 does not — making the BO6 comparison even more impressive for MW4.
- MW4 carries a Very Positive Steam rating at 80% positive, with the campaign briefly reaching 94% positive during early access.
- Complaints have since shifted toward multiplayer balance and technical issues, though overall reception remains strong.
- Steam numbers include Warzone and other CoD titles, so figures reflect the shared Call of Duty app rather than MW4 in isolation.
Call of Duty: Modern Warfare 4 is off to a genuinely solid start — just not quite the record-breaking launch that some were hoping for. The numbers from Steam’s opening weekend are in, and while Infinity Ward’s latest can’t quite match the enormous debut Black Ops 6 put up in 2024, it has very decisively put distance between itself and last year’s forgettable Black Ops 7 release. For a franchise that was taking some real hits to its reputation just 12 months ago, that’s meaningful.
The Numbers: MW4 vs. Black Ops 6 vs. Black Ops 7
According to SteamDB tracking data, the shared Call of Duty Steam application — which houses MW4, Warzone, and other supported titles — peaked at 227,434 concurrent players during Modern Warfare 4’s launch window. By comparison, that same application reached approximately 306,460 concurrent players around the launch of Black Ops 6 in October 2024. That puts MW4 roughly 26% behind BO6, a gap of about 79,000 concurrent users.
Against Black Ops 7, though, the story looks very different. BO7 struggled to generate any meaningful launch spike on Steam, peaking at only around 100,000 concurrent players — a number that Modern Warfare 4 had already surpassed during campaign early access alone, before the full multiplayer even opened up. MW4 has effectively more than doubled Black Ops 7’s Steam peak at launch.
One important caveat worth keeping in mind: these numbers reflect the shared Call of Duty application, not an isolated MW4 player count. That means active Warzone players and people on other supported titles are mixed into the total. The same methodology applied when Black Ops 6 launched, which is why the comparison between BO6 and MW4 is still directionally useful — but neither figure should be treated as a precise headcount for either game specifically. Steam offers the clearest public comparison available right now, even if it’s not perfectly clean.
Why Black Ops 6 Still Has the Bigger Number
There’s an important context that makes the gap between MW4 and BO6 look better for Modern Warfare 4 than the raw numbers suggest. Black Ops 6 launched day one on Xbox Game Pass Ultimate and PC Game Pass, giving PC players the option to jump straight in without buying the game outright. That access route kept a significant chunk of BO6’s PC audience off Steam entirely — they didn’t need to purchase it through Valve’s platform at all.
Modern Warfare 4, by contrast, requires a separate purchase and won’t join Game Pass until Holiday 2027. In theory, that should push more of its PC audience toward storefronts like Steam, Battle.net, and the Epic Games Store. The fact that Black Ops 6 still produced a larger Steam spike, even with that Game Pass advantage siphoning players away, is a genuine reflection of how massive BO6’s launch was rather than a knock on MW4. It was genuinely one of the biggest Call of Duty launches in years.
What Players Are Actually Saying
This is where Modern Warfare 4 arguably wins the more important battle. The game currently sits at a Very Positive rating on Steam with 80% of English-language reviews recommending it — a number that represents a dramatic turnaround from the consistent “Mixed” and “Mostly Negative” ratings that recent Call of Duty entries have carried.
During campaign early access, the praise was even louder. At its peak, MW4’s campaign reviews were hitting 94% positive as players called it one of the best single-player offerings Call of Duty has produced in years. For context, recent titles like Black Ops 7 sat at 37% positive, Black Ops 6 managed 45%, and even the well-regarded 2019 Modern Warfare reboot only reached 79%. MW4 during early access was posting numbers the series hadn’t seen in well over a decade.
Since the full launch with multiplayer, the overall rating has naturally settled as more players weigh in. Complaints have centered on multiplayer balance, technical performance, and frustrations with the Call of Duty launcher — familiar criticisms for the franchise. But the overall sentiment remains meaningfully positive, especially compared to where the series has been sitting recently.
What Comes Next for MW4
Opening weekend numbers are just the starting gun. Activision hasn’t released total player figures across console, Battle.net, or other storefronts — so Steam remains a partial picture at best. Infinity Ward still has a full season roadmap ahead, with seasonal updates, new content drops, and ongoing multiplayer adjustments that will determine whether MW4 can hold onto its player base in a way that Black Ops 7 clearly couldn’t.
The real question now isn’t whether MW4 beat BO6 at launch — it didn’t — but whether the warm critical reception and strong early goodwill can translate into a game that stays healthy and populated months down the line. If it can, this will end up being one of the more successful recent chapters in Call of Duty’s post-2024 story. For a franchise that was seriously struggling with player and critical confidence just a year ago, a 227,000-player Steam peak and a “Very Positive” rating is a genuinely encouraging place to be standing on launch weekend.
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