game.py

# Score starts with zero.
scores = [300, 500, 500, 0, 600]
lives = 3  # Default 3 lives
# Game state negative means means Start Menu
# Positive means Playing
gameState = 0

print("Playing")
for score in scores:
    if lives is 0:
        print("Game over! You lose.")
        break
    else:
        print(score, end=" - ")
        if(gameState >= 0):
            # If score is in between a level i.e. 1-499, 501-999, 1001-1499 etc, its a loose
            # % (called Modulus) gives you Remainder of a division.
            if(score % 500 > 0 and score % 500 < 500):
                print("Lose")
                lives = lives - 1
            else:
                print("Win")
                lives = lives + 1
if lives > 0:
    print("Congrats! You finished the game.")