Game doesn't run! No syntax errors.

import random 

def game():
    #generate a random number between 1 - 10 
    secret_num = random.randint(1, 10)
    guesses = 0

    while guesses < 10:
        try:
            #get a number guess from the player
            guess = int(input("Guess a number between 1 and 10: "))
        except ValueError:
            print("{} isn't ta number:".format(guess))
        else:      
            #compare guess to secret number
            if guess == secret_num:
                print("You got it:  the correct number was {}".format(secret_num))
                break
            elif guess < secret_num:
                  print("My number is higher than{}".format(guess))
            else: 
                print("My number is lower than{}".format(guess))
            guesses += 1
    else:             
        print("You didn't get it! My number was{}".format(secret_num)) 

    play_again = input("Do you want to play again? Y/n ")
    if play_again.lower() != 'n':   
        game()
    else:
        print("Thanks for playing, have a good day!")