No revenue estimate for PSN — its rating/review counts don't calibrate to sales the way Steam's do. The Steam version is estimated at $33.6K — a different platform, not this one.

Sylvio

Sylvio is a psychological horror game set in a tranquil, disturbing atmosphere. Ghost recorder Juliette Waters trespasses into an abandoned family park, shut down since a landslide in 1971. The voices of the deceased captured on her reel-to-reel recorder reveals a tale of an evil curse and a wicked family cult, currently living in the park. First-person horror with a multi-layered story. 
 10 - 15 hours gameplay. Open world exploration by foot or car.
 Conduct seances, search for voices in the static, and analyze your recordings with a unique audio gameplay mechanic. 1 player 3GB minimum save size DUALSHOCK®4 Software subject to license (us.playstation.com/softwarelicense). Online features require an account and are subject to terms of service and applicable privacy policy (playstationnetwork.com/terms-of-service & playstationnetwork.com/privacy-policy). One-time license fee for play on account’s designated primary PS4™ system and other PS4™ systems when signed in with that acco