# Contents

- [Case Study (EN)](https://playio-ads.gitbook.io/playio-ads.en/playio_contents/case_studies_en.md)
- [“봉술사 키우기”, Maximizing Long-Term Retention with Time Quests](https://playio-ads.gitbook.io/playio-ads.en/playio_contents/case_studies_en/maximizing-long-term-retention-with-time-quests.md)
- [Merge Camp, Securing High LTV users through Playio’s AI recommendation system](https://playio-ads.gitbook.io/playio-ads.en/playio_contents/case_studies_en/merge-camp-securing-high-ltv-users-through-playios-ai-recommendation-system.md)
- [How Office Cat Achieved 209% D30 ROAS with Hidden Quests and Engagement Strategies](https://playio-ads.gitbook.io/playio-ads.en/playio_contents/case_studies_en/how-office-cat-achieved-209-d30-roas-with-hidden-quests-and-engagement-strategies.md)
- [Case Study: Hello Games Achieves 195% D30 ROAS for "Hamtopia: Merge Dream Shopping Mall" Through Tar](https://playio-ads.gitbook.io/playio-ads.en/playio_contents/case_studies_en/case-study-hello-games-achieves-195-d30-roas-for-hamtopia-merge-dream-shopping-mall-through-tar.md)
- [Brain Test: Tricky Puzzles – How Playio Helped Achieve 144.62% Cumulative ROAS with Hidden Quests](https://playio-ads.gitbook.io/playio-ads.en/playio_contents/case_studies_en/brain-test-tricky-puzzles-how-playio-helped-achieve-144.62-cumulative-roas-with-hidden-quests.md)
- [SuperPlanet: Strengthening Targeting and User Retention through Playio CBT](https://playio-ads.gitbook.io/playio-ads.en/playio_contents/case_studies_en/superplanet-strengthening-targeting-and-user-retention-through-playio-cbt.md)
- [\[Playio JP Case Study\] TREEPLLA Achieves 234% ROAS through Playio Japan Campaign](https://playio-ads.gitbook.io/playio-ads.en/playio_contents/case_studies_en/playio-jp-case-study-treeplla-achieves-234-roas-through-playio-japan-campaign.md)
- [AppQuantum’s Gold & Goblins Tops the Charts in Playio Taiwan](https://playio-ads.gitbook.io/playio-ads.en/playio_contents/case_studies_en/appquantums-gold-and-goblins-tops-the-charts-in-playio-taiwan.md)
- [Island Times: Easy Life Achieves ROAS D14 200% in Playio Taiwan](https://playio-ads.gitbook.io/playio-ads.en/playio_contents/case_studies_en/island-times-easy-life-achieves-roas-d14-200-in-playio-taiwan.md)
- [Achieving 101% ROAS with High-Level Progression Strategy in \<I9: Inferno Nine>](https://playio-ads.gitbook.io/playio-ads.en/playio_contents/case_studies_en/achieving-101-roas-with-high-level-progression-strategy-in-less-than-i9-inferno-nine-greater-than.md)
- [Achieving 119% D14 ROAS with Quest-Based Optimization Strategy for DDDigger](https://playio-ads.gitbook.io/playio-ads.en/playio_contents/case_studies_en/achieving-119-d14-roas-with-quest-based-optimization-strategy-for-dddigger.md)
- [Achieved 108% ROAS in Just 2 Weeks!](https://playio-ads.gitbook.io/playio-ads.en/playio_contents/case_studies_en/achieved-108-roas-in-just-2-weeks.md)
- [\<Rent Please!-Landlord Sim> : Achieved up to ROAS  253% with Female Targeting & Quest-Based Strategy](https://playio-ads.gitbook.io/playio-ads.en/playio_contents/case_studies_en/less-than-rent-please-landlord-sim-greater-than-achieved-up-to-roas-253-with-female-targeting-and-qu.md)
- [\<Spirit King Quest> : Achieves up to 358% ROAS with Playio’s Dungeon Optimization Strategy!](https://playio-ads.gitbook.io/playio-ads.en/playio_contents/case_studies_en/less-than-spirit-king-quest-greater-than-achieves-up-to-358-roas-with-playios-dungeon-optimization-s.md)
- [Hello Kitty My Dream Store Achieves Up to 3x Higher ROAS vs. Market Average](https://playio-ads.gitbook.io/playio-ads.en/playio_contents/case_studies_en/hello-kitty-my-dream-store-achieves-up-to-3x-higher-roas-vs.-market-average.md)
- [Candy Match – Driving Long-Term ROAS in Puzzle Games Through Quest Design](https://playio-ads.gitbook.io/playio-ads.en/playio_contents/case_studies_en/candy-match-driving-long-term-roas-in-puzzle-games-through-quest-design.md)


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