10-Year-Old App Shukka Buta Hits 110 Million Yen Monthly Sales After Playtime Integration
The case shows how a mature free-to-play app can re-accelerate by targeting point-activity users who demand monetary rewards for play time, a shift from the traditional F2P model.
Reporting from 1 sources: GameBusiness.jp.
At Game Future Summit 2026, EAGLE CEO Ryuma Yasu revealed that the 10-year-old simulation game Shukka Buta grew monthly sales from around 10 million yen in June 2025 to 110 million yen in half a year. The growth followed integration of adjoe's Playtime reward system, which pays users for pure play time rather than task completion.
At the Game Future Summit 2026 event on June 3, EAGLE CEO Ryuma Yasu and adjoe Japan Country Manager Daisuke Hattori detailed how the 2015 simulation game Shukka Buta reversed a long plateau. Monthly sales of around 10 million yen as of June 2025 jumped to 110 million yen within six months, a tenfold increase. The driver was adjoe's Playtime system, which rewards users based on pure game play time instead of requiring specific in-game achievements. Yasu said the clear value of earning points by playing resonated with light point activity users the app had not previously reached. Key KPIs improved: LTV rose 1.5x, ROAS hit 180%, and CPA fell below 200 yen.
Synthesized by Yomimono from the 1 cited source below, including Japanese-language reporting where cited, then editorially reviewed before publishing.