Okay a nice game. Just like what I played when I was a kid.
But do you have only one batch of it?
I mean what if there are 160 players? So there will be like 10 batches of this right?
Or first come, first serve and only 16 players can gamble?
There is only one round of 16 bets at the same time. (You can bet on several values in one lot). The games are very fast with a large number of players. And since the game is fully automated, winnings to winners are sent immediately after the end of the round.
This is just my opinion that 7% commission looks quite high for the service you provide for each round.
Maybe for the first few days, you may run some promotions like reduce the minimum amount of bet to 0.001BTC and provide first few people one-time free amount 0.001 BTC then you get more players to the site. If people like the game then they may continue playing with their money.
Also, for the first few days either you reduce your house edge or remove completely.
He should not reduce the the available game, but he should add more games. So there will be more games with different minimum bet, starting from 0.001, 0.002, and so on. So people may choose which one is more suitable for them based on their own funds, they can join all games as well.
Promotion is always good, but I'm not really sure what would be a good promo for this game. Probably free bet?
I would like to add one point which I think would be best for all gamblers.
The point is, it could be more better if there is at least 3 winners out of 16 instead of 1. By doing this, they may get more gamblers to their site.
Gamblers may take risk when they will see more win probabilities (3 or more) instead of 1.
And of course they should have multiple options to bet from minimum amount
BTC0.0005 to maximum amount "?".
Yes, it is a good suggestion to consider because as you said as gambler got a more chance to win then many people may try their luck instead just one winner. Either fix the equal amount to all three winners or can make different % prices are these three winners.
Also, gambling site needs good promotions to attract many gamblers.