Web Gaming: The untapped path to lower CPI and boost ROAS

Summary

The article argues mobile UA economics are structurally deteriorating: CPI keeps rising, app stores take 15-30% of in-app revenue, and AI-driven game creation intensifies saturation. Web gaming has matured beyond stripped-down browser demos. Unity-to-HTML5 full ports let studios maintain one codebase and deliver the same game in a browser tab.

Pley reports 30-50% lower cost of acquisition for web campaigns versus mobile, with demand shifting from evangelism to inbound interest. Porting requires real engineering investment, so it best fits games with depth--RPGs, strategy, puzzle, hidden object, and story-driven titles--not hypercasual. Web also improves revenue: web payments avoid store commissions, and in-game ads run natively in the web environment.

Measurement has caught up with mobile-grade rigor via AppsFlyer, including independent attribution, automated conversion signals, unified cross-platform reporting, and cost-to-revenue tracking. Retention concerns are challenged by data: PWA icons aid return visits, and one publisher's strategy title averaged 6-7 minutes per session on mobile versus over 70 minutes on web. Adamek attributes this to deeper investment, longer play, more offers, and stronger payer retention.

The strategic recommendation is not to abandon mobile but to compound it with web through cross-platform account linking. That raises LTV by letting players continue the same game across devices. One studio's in-app announcement for its web launch generated 60,000-70,000 email signups and tens of thousands of launch-day account links, showing owned media can outperform paid acquisition.

Actionable takeaways for ad ops leaders: audit your catalog for deep, session-heavy titles; pilot a full web port rather than a stripped-down copy; instrument web campaigns with mobile-grade attribution; connect player accounts across mobile and web; track cross-platform LTV and retention; and use owned channels to seed web adoption. Treat web as a core channel when the title has enough depth, and re-evaluate ROAS math accordingly.

Analyst Note

What's notable here isn't the CPI figure itself — 30-50% reductions have circulated among web gaming operators for some time — but that mobile-grade attribution now exists for browser-based titles via AppsFlyer. That closes the structural gap which had previously kept web campaigns outside standard UA reporting, and it's arguably the precondition for web being treated as a first-class channel rather than a testing ground.

The key implication for monetization teams is the compounding effect: lower acquisition cost paired with eliminated store commission shifts unit economics on both the cost and revenue sides simultaneously, which is uncommon in channel diversification conversations. Historically, adding a channel meant accepting weaker measurement, thinner inventory, or both — web formerly demanded all three.

Timing is the real driver. Store fees are structural rather than cyclical, and AI-assisted game creation keeps adding supply-side pressure to mobile CPI. That combination explains the shift from vendors pitching web to buyers asking about it unprompted.

Worth watching: whether cross-platform account linking becomes a default onboarding expectation, and whether web inventory gets folded into existing DSP buying rather than budgeted as a separate line item. The depth-of-game caveat also suggests web won't be evenly distributed across the catalog.