170% D1 ROAS
$0.04 CPI
1.26x Ad LTV Lift
1.4x eCPM Lift
2.5x Spend Efficiency

The Studio

The One Game Studio is a talented Hanoi-based mobile game publisher with a growing team of over 60 employees and a large portfolio of over 70 casual, music, and puzzle titles that attract a global audience.

Vietnam has become one of the world's leading mobile game publishing hubs that's home to a dense cluster of studios dominating the casual and hypercasual charts. The One's catalog of fast-iterating, ad-monetized titles is exactly the kind of high-velocity portfolio that benefits most from connected cross promotion.

Vietnam Location
Hypercasual Genre
95% Ad Revenue Monetization

The Challenge

The One's engaged players were concentrated in a handful of top-of-funnel hits, while higher-LTV titles in the same portfolio reached only a fraction of that audience. Both source and destination titles monetize approximately 95% through advertising. Routing the right users into the higher-LTV destination without disrupting the source app's ad stack was a problem existing channels couldn't solve.

The Solution

The One deployed ByteBrew Ads, powered by Ctrl AI to augment its existing ad mediation.

Ctrl identifies the highest-value users in the source app and targets them for the highest-LTV destination in the portfolio.

Ctrl evaluates each ad opportunity in real time, both predicting user value and opportunity cost in the source app to determine when to capture high-value users that meet campaign targets. When impressions don't meet those targets, standard mediation flows naturally, making Ctrl AI a predictive scalpel for keeping your most valuable users within your portfolio.

Most networks require lengthy optimization periods for each new campaign. Ctrl is pre-trained on petabytes of live app data, eliminating the cold start. From install one, Ctrl routes high-value users to the highest-LTV portfolio destination.

Powering creative performance is Alt, ByteBrew's AI Vision engine, which serves each user the creative most likely to drive conversion at the impression level.

The Results

Global ROAS — ByteBrew Ads vs other networks from Day 0 through Day 7

The campaign reached 170% D1 ROAS globally; achieving profit from Day 1.

Ctrl routed users that delivered 1.26x user Ad LTV in the destination compared to the source app. Ctrl users produced 1.4x Ad eCPM per impression in the destination app and retained 1.6x the destination's blended Day 1 rate.

Performance lift — ByteBrew Ads vs other networks across Ad LTV, Ad eCPM, Day 1 retention, and spend efficiency

Ctrl acquired users across 100+ countries at a $0.04 average CPI, producing up to 2.5x more efficiency than open market acquisition in even the most expensive geo's.

See ByteBrew Ads performance side by side open market channels

Global ROAS — ByteBrew Ads vs other networks from Day 0 through Day 7

Net Portfolio Lift Unlocked

The portfolio grew, not just the destination. For every unit of source ad value Ctrl targeted, the destination produced 1.7x in new ad value globally within the first day, climbing toward 1.85x by Day 7 as the cohort matured. Destination gains outran source opportunity cost on a fully amortized basis, lifting total portfolio ad value.

US ROAS — ByteBrew Ads vs other networks from Day 0 through Day 7

At a $0.04 CPI, Ctrl acquired users at a fraction of open-market UA costs, making portfolio routing a far more efficient path to high-value installs than buying the same users on traditional channels. In the most expensive geo's Ctrl was over 2.5x lower than open-market costs, returning 200% ROAS by Day 1 where paid user acquisition had not even recovered its cost by Day 7. This enables The One to grow the destination app's audience without solely relying on unprofitable channels and frees budget to be redistributed across the portfolio. As new portfolio apps come online, the efficiency compounds.

"These results surprised even us. Achieving positive ROAS from Day 1 with a low CPI while increasing overall portfolio value is exactly the kind of outcome every publisher hopes for. Smart AI-powered cross-promotion helped us unlock value that traditional UA channels couldn't deliver as efficiently.

In mobile gaming, growth comes from continuous testing. Test, learn, iterate, and test again. You'll never know where the next breakthrough comes from until you try something new. This was definitely worth testing, and we're glad we took that step."

Duong Tran, Marketing Lead

The One Game Studio

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