CASE STUDY I DEVSISTERS

Remerge exceeds ROAS goals by over 100% for Devsisters Gaming

The Challenge

Winning back lapsed players

With CookieRun: Kingdom entering a mature lifecycle, Devsisters saw a growing need to re-engage lapsed players effectively. Before partnering with Remerge, the team primarily used Meta and Google for retargeting. To maximize ROAS and bring returning paying users back into the game, Devsisters turned to Remerge for a focused re-engagement approach outside of walled gardens for the US and Korea.

Partnered for performance-driven execution

Remerge worked closely with Devsisters’ internal team to align on goals and optimization strategy. The team provided hands-on guidance throughout the campaign setup, from audience segmentation to bidding and budget pacing. Transparent reporting and ongoing performance reviews ensured both teams had full visibility into results, enabling quick, data-driven adjustments to maintain target KPIs.

Prioritized high-value purchasers through smart segmentation

Remerge segmented users by app-open recency and purchase volume to identify and prioritize high-value purchasers. Differentiated bidding strategies were applied across segments to balance spend efficiency and performance impact, ensuring that budget allocation reflected each group’s engagement and revenue potential.

Tested and scaled top-performing creatives

Remerge introduced additional creative formats, including static images and small video assets to strengthen engagement. Continuous testing through Remerge’s campaign experimentation tool identified top-performing visuals, enabling data-driven creative iterations that directly contributed to ROAS improvement.

« Remerge has been a great partner, helping us not only achieve our main campaign KPIs but also closely monitoring secondary metrics, which has been a huge support for Devsisters’ comeback campaigns and overall marketing strategy. »
Hongin Kim, UA marketer

The Results

Driving sustainable growth

Devsisters campaigns achieved more than 2x the client’s D7 ROAS target across regions, representing a significant uplift from baseline performance.

This success enabled stable re-engagement and efficient budget pacing, providing a reliable foundation for long-term campaign growth.

Company Profile

About Devsisters

Devsisters is a leading Korean game company best known for its globally successful CookieRun franchise. Since its founding in 2007, the company has built a strong foothold in the global mobile gaming market by focusing on character-driven casual and RPG titles. Headquartered in Seoul, Devsisters continues to expand its gaming portfolio to engage players worldwide.