So, Gambling is not only a game to play, but it's a game attached with money. None of your propose can be gambling.
Then we considred gambling can be always gambling.
That means, gambling is either a business and a investment. That's how it is, it's not just a game, it needs money so the game would function as what it is supposed to be, and when we invest money in gambling, it is already investment and since we invested, we want to earn from that and that means it is already a business. Considering gambling just a game I think would just make you deposit money and lose it without a purpose.