Follow-up to Buff: Overwolf, Channel Concentration, and Revenue Quality

The main article already established that Buff looked better in 2025, especially in the second half, and that the key engine was a shift toward more efficient revenue channels. This follow-up isolates the harder question: did revenue quality really improve, or did the company simply become more dependent on the same partner that still sits inside the PC monetization stack.

The answer is not binary. Revenue quality did improve at the unit-economics level. Buff moved away from slower, lower-value ongoing advertising toward a shorter-cycle, heavier-yield campaign model. But the same filing also shows that Overwolf still sits inside three different PC layers at once: ad infrastructure, the software layer that lets Buff read in-game activity, and the direct-campaign pipeline itself. In other words, Buff improved the product it sells, but it still has not proved that it independently controls the channel through which it sells it.

Overwolf Is Not Just A Supplier, It Is Part Of The PC Operating Layer

The right way to read this relationship is not through one simple question of dependence or independence. It has to be read through three separate functions that Overwolf fills at the same time, each touching a different layer of revenue quality.

That table explains why the story runs deeper than a normal commercial dependency. If Overwolf were only an app store, the risk would be uncomfortable but still secondary. The report itself even says the app-store risk is relatively limited because most users do not arrive through that route. The real concentration sits somewhere else: Overwolf as the operating and monetization layer of Buff's PC business.

The company more or less says this directly. In the risk section it defines the relationship as exposure to a central advertising and software-services channel, and warns that losing those services without preparation could hurt operations for a period and at a scale it cannot estimate. That is already beyond the language of a mere important vendor. It is an operating layer the company knows how to use, but still has not shown it can replace quickly.

The Revenue Mix Really Improved, But Part Of It Rested On A Contractual Floor

The core data point is positive. Campaign revenue and campaign-services revenue rose to 7.02 million dollars in 2025, from 3.857 million dollars in 2024, a jump of about 82%. At the same time, advertising revenue fell to 1.149 million dollars from 2.787 million dollars. Management does not frame that as an accident. It describes the shift as deliberate: direct campaigns are shorter-cycle, more intense in size, and can generate much higher value from the same media space than ongoing advertising. The board discussion also says price erosion in the traditional advertising market strengthened the decision to focus on direct campaigns.

That matters. At the level of media economics, Buff did not move into a weaker channel. It moved into a richer one. A reader who only sees the decline in ongoing advertising could wrongly conclude that the company lost a revenue engine. In practice, it replaced a slower and cheaper engine with a faster and more valuable one.

But this is where revenue quality, not just revenue size, starts to matter. The report explains that in February 2025 the commercial terms with Overwolf were updated so that Overwolf committed to a minimum annual campaign target of 4.1 million dollars gross, alongside a fixed monthly payment of about 171 thousand dollars even if the target was not fully achieved. In practice, Overwolf delivered only about 2.8 million dollars gross of campaigns, and the remaining receipts were recognized net as revenue from support services for campaign activity.

That is the key point. The 2025 revenue line looked better, but part of it did not come from a broad, open pipeline of independent advertiser demand. It also came from a minimum-commitment mechanism with one partner. That is still real revenue, but it is not the same quality as diversified market demand.

The numbers sharpen the point:

• Campaign revenue plus campaign-services revenue totaled 7.02 million dollars.
• Of that, 3.989 million dollars was explicitly defined as direct-campaign and campaign-services revenue from Overwolf.
• Revenue from advertising through Overwolf's ad platform contributed another 1.149 million dollars.

Adding the two figures the company explicitly attributes to Overwolf gets to about 5.1 million dollars, roughly 60% of total 2025 revenue. The company does not present that as a single sentence. It is an arithmetic combination of two separate disclosures. But it is an important combination, because it shows that the better mix did not really move Buff away from Overwolf. It mostly shifted the center of gravity toward a different kind of Overwolf exposure.

Buff Has Some Pricing Power, But It Still Does Not Own The Route To Market

To avoid an overly simplistic read, the counterweight matters too. Buff does not describe itself as a passive subcontractor inside Overwolf's infrastructure. In ad-inventory sales, the company says it owns the ad inventory, bears the full credit risk, and has the exclusive right to influence the transaction price set in the auction. It can also set a minimum or maximum selling price for its ad space. That is a real indication that Buff still keeps some control over the economics of its inventory.

So Overwolf does not dictate every dollar of pricing. It operates the management, auction, and player layer, but Buff still owns the asset itself and retains some control over how it is priced. In revenue-quality terms, that is an important distinction: the company has not surrendered all economic control.

But the limit is just as clear. Buff's power is pricing power inside an existing channel, not ownership of the channel itself. Overwolf runs the auction, intermediates with agencies, provides the infrastructure, and can remove the platform from its app store or ad platform in cases of policy breaches. Beyond that, Buff itself says replacing this supplier without advance preparation could temporarily delay ad revenue in ways it cannot estimate.

In plain terms, Buff still has a say over the price of the product, but not yet over the full commercial path through which the product is sold. That is why the revenue mix looks better at the unit-economics level, but still less clean when tested for durability.

That chart matters because it shows the other side of the improvement. In 2024 Buff paid Overwolf commissions of 1.163 million dollars. In 2025 the amount rose to 1.893 million dollars. So in a year when total revenue increased by 1.462 million dollars, payments to Overwolf increased by 730 thousand dollars. On a simple arithmetic basis, almost half of the annual revenue increase came alongside higher payments to Overwolf.

That does not mean the shift into campaigns was wrong. It may well have been the best move available under the company's constraints. It does mean the better mix did not come for free, and that a meaningful portion of the value created is still being shared with one highly dominant partner.

Where The Concentration Ends, And Where It Could Actually Start To Fade

The relative good news is that this concentration does not map onto the entire company. The report makes clear that the services Overwolf provides are not relevant to the mobile platform. On mobile, Buff uses Google and Apple development infrastructure and receives game data directly from game developers. So if mobile becomes materially meaningful over time, it could also become a genuine path to reducing the Overwolf dependence embedded in the PC business.

The problem is that mobile was still not material in revenue terms during 2025. So at this point that is still a strategic option, not a solution already visible in the numbers. Until mobile proves commercialization at scale, Buff's revenue structure remains mainly a PC structure, and that is where Overwolf continues to sit in several critical places at once.

There is some early movement in the right direction. The company says that during 2025 it worked to add more agencies in order to lower the level of dependence. The board discussion then says that from the start of 2026 the company had already signed additional agencies, updated the terms with some existing agencies, and started working with a direct sales agent in the US to promote campaign deals. The investor presentation adds a 2026 target of 50% to 60% growth in direct campaigns.

That means management understands the problem well. The question is not whether it sees the concentration. The question is whether it can scale the channel faster than it scales the dependency.

What 2026 Actually Needs To Prove

That leads to three tests that are much more precise than the broad question of whether the company keeps growing.

The first test is where growth comes from. If campaign revenue continues to rise, but most of that increase still comes through Overwolf, Buff will improve the numbers without meaningfully improving commercial independence. For the thesis to strengthen, a growing share of campaigns needs to be closed through other agencies and through direct sales.

The second test is the price of that growth. If payments to Overwolf keep rising almost in line with revenue, that would suggest that the commercial leverage still has not really shifted to Buff. If revenue grows faster than those payments, or if Overwolf's share of revenue starts to fall, that would be a more convincing sign of genuine improvement in revenue quality.

The third test is structural dilution of the dependency. As long as mobile is immaterial, concentration remains overwhelmingly a PC issue. If mobile starts producing revenue at real scale, especially through direct relationships with game developers, Buff could start building a second engine that does not sit on the same intermediation layer.

Conclusion

In 2025 Buff did not merely reshuffle numbers between lines. It did improve the economics of its revenue base. Direct campaigns and the services around them are better business than ongoing advertising that is already under pricing pressure, and the company was right to shift the weight in that direction. But that improvement has not yet detached from its main risk. Overwolf remained deeply embedded in ad inventory, PC integration, and the origin of campaign deals.

So the precise conclusion is neither that the improvement is fake nor that it is already clean. The improvement is real, but it is still concentrated. In 2026 Buff will need to prove not only that campaigns keep growing, but that the growth begins to travel through more than one agency, more than one infrastructure layer, and with more commercial control staying in Buff's own hands.