: Isaac starts with 3 red hearts. Your goal is to keep these hearts intact. Items can increase your heart capacity or give you soul or black hearts, which have different properties.
: If health (represented by hearts) reaches zero, the game is over and you must start a new run.
Because you are playing an emulated or browser-ported version, the controls map directly to your keyboard:
: The game runs natively inside HTML5 or WebGL formats without admin privileges.
If you are concerned about safety, legality, or simply prefer a more stable experience, there are several alternatives for playing "The Binding of Isaac" and similar games.
It is better to avoid damage than to deal it quickly. Learn enemy attack patterns.