Case Study: Netmarble achieves 3x user retention with Google AdMob rewarded video ads

Hardcore gaming publisher Netmarble triples user retention with AdMob rewarded video ads

Netmarble, a Seoul-based hardcore gaming publisher behind titles like Seven Deadly Sins, faced falling revenue growth from relying mainly on in-app purchases and needed to increase user retention and monetize non-paying users. To address this, Netmarble partnered with Google AdMob and integrated AdMob rewarded video ads into Seven Deadly Sins as a new ad format.

Working closely with AdMob on SDK integration, placement strategy, and KPI tracking (impressions, eCPM, conversion and retention), Netmarble blended rewarded videos into key game touchpoints and adjusted based on user feedback. The Google AdMob implementation drove users who opted in to ads to 3x higher retention, delivered a 118% higher eCPM and accounted for 42% of rewarded-ad impressions; Netmarble has since expanded rewarded ads to 10+ apps and reinvested the additional revenue into user acquisition.

Netmarble

Taehun Kim

User Acquisition Marketing