It has nothing to do with gambling as it is just like a free game to earn small amount of satoshi so it should be moved to Micro Earning board unless there is a plan to make it like a real gambling where people are risking money to play against each others but I think it will be hard to make this game be provably fair.
Sorry to say but the earning of playing your game is too small, I believe free bitcoin hunters will prefer on claiming faucet instead of playing your game.
Hi
We are planning on adding a pay to enter mode, like in poker tournaments.
The current mode is like a freeroll free trial mode except you can still win Bitcoin.
The more people that play the more you can win.
Each game can have up to 100 players playing and we can run many games at the same time.
You could invite some friends to play and try it out. You get Bitcoin for each player you kill so the more people in game the more you stand to win :