Eliminated might work - I usually associate that with games with multiple rounds where players or teams are eliminated in each round. Or a game with multiple players where one person may go out but the other players will continue until one is left to win. Is that the situation you have? I wouldn't associate reject or exclude with losing a game.
Though that second sentence is very colloquial, and doesn't quite 'feel' right (well, at least to me, though people from different countries might disagree).
Maybe that was a bad example. I was thinking of "it's just the matter of..." in a context like this quote. "the matter" being a specific concern.
"They're fronting Joe so they are going to double [team him] on [the] catch," Kidd said. "So for us, it's just the matter of making the plays and not so much relying on Joe to bail us [out]."
'money', 'balance' or 'funds' (note the s) might all work, depending on the game.
For something more general I would use 'money', but you might use 'balance' or 'funds' if you were making some sort of a simulation game with accounting, like SimCity or something.
Thanks. I'm just making a number guessing game from 0 - 99, it works like a lottery game. If the player guessed it right, he or she would received the money bigger than his or her bet. So 'money' or 'balance'?