A solo baseball game earned ¥12.9M in its first 11 months

Nagoya developer Yu Furuta built the high-school baseball management game Take Me to Koshien alone and acquired users through app-store search and word of mouth. A founder interview reported 48,000 downloads, about 3,000 daily active users and a 76% in-app purchase versus 24% advertising revenue mix; 5%-6% paid about ¥3,000 each. These are founder-reported 2018 gross figures before platform fees and labor, and current profitability is unconfirmed.