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 $177.2K — a different platform, not this one.

Fort Defense

Fort Defense All hands on deck! Pirate armada dead ahead! Build towers, collect crystals, upgrade spells, defend fortress against pirates. Fort Defense North Menace Welcome to the unique pirate style Tower Defence. Enjoy 20 levels, which create an atmosphere of cold Arctic ice. Iron Sea Embrace your tactical and strategic prowess and victory will be yours in Iron Sea Defenders! Compatible with PlayStation®4. 10MB minimum space required 1 Player DUALSHOCK®4 Vibration Function HDTV screen resolution: 720p 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 account.