Is Operate Now: Hospital free to play?

Yes, you can play the game for free, and you don't have to spend money if you don't want to. There are some things you can buy in the game. However, it's entirely up to you whether you want to make those purchases or not.

How do I earn and use Golden Hearts in the game?

Golden hearts are a valuable in-game currency. That can be used for various purposes, such as treating patients. Further, players can earn golden hearts through achievements or purchase them with real money.

What are the system requirements for the game?

The system requirements vary depending on the platform (Android, iOS). Generally, the game is designed to run on a wide range of devices. However, it's recommended that you check the specific requirements for your device.