One example of where this would be useful is at the start if they don't go into the mine:

decision = input("Do you want to enter? [Y,N]: ")
if decision == "N":
    print("Your quest is at an end, goodbye!")
    sys.exit()
else:
    print("You enter the mines.")
print("The way is lit by candles on the wall.")


Try adding this code to our game and check it works.

Note that when we use functions from libraries we need to use the dot operator "." - this means "look inside and find", so sys.exit() means "look inside the system library and find the exit() function.