I'm not encouraging u to gamble, but if u bet within the range of 0.1 btc to 1 btc, u probably get better house edge here than anywhere else.
With a 0.1
BTC bet, you get a 1/16 chance to win 1.584
BTC, which is a ~1% house edge so it would probably be better to bet on other websites, even ones with a 1% edge as you can continue betting if you wish without having to pay again. However, sites like Crypto-Games offer a 0.8% edge on dice, and SafeDice offers an even lower 0.5% edge. For betting on Chain-Bet.com to be worth it now (if you play on a 16x multiplier
only), you would have to bet above 0.2
BTC.
Knowing the very bad odds for small bets, I'm quite surprised you keep getting bets for amounts less than 0.02
BTC, with a essential house edge to the player of 5% with a bet of 0.02
BTC.
Chain-Bet, Have you considered making your game off-chain, but still betting on block hashes?
Considering the house edge and on-chain nature, the negatives are amplified further when one considers the fact that you need a transaction fee for every single bet as opposed to a single deposit.
As of the time I'm posting, "The fastest and cheapest transaction fee is currently 360 satoshis/byte, shown in green at the top.
For the median transaction size of 226 bytes, this results in a fee of 81,360 satoshis."
This means that for example if you send 0.1 BTC as a transaction your bet is in reality just 0.0981864 BTC.
A 1/16 chance to win that results in an expected value of 0.0981864 (given the 0-edge nature after the transaction fees) and thus is a house edge of 1.8136%.
Comparing this with a 1 BTC amount, your bet is 0.9981864 BTC and thus your house edge is 0.18136%.
I don't think it's a good idea to restrict your demographic so much.
Also, just for laughs, if you send the minimum bet of 0.002 BTC then your house edge is literally 90.68% with both transaction fees.