I've tested your bot. First suggestion: can you add a QR-code to the deposit feature? I use Telegram in a VM, and have a LN-wallet on Android.
Depositing works. The game works. Withdrawing says "Invoice is being paid.", but it doesn't arrive. The balance hasn't changed. LN sometimes can't find a route instantly, so I waited a bit. Then I tried another wallet, and it arrived after a few seconds. I think my own wallet was to blame, I couldn't send a small amount earlier when I tried.
Your house edge is enough good but I have a doubt about the gambling on telegram. Also, you are accepting only lightning network of bitcoin. I think you should increase the limitation by adding more coin and also by adding other network as well with lightning network. Also, please answer if it is possible what will happen if anyone deposit with mainnet of bitcoin.
No need to add altcoins, Bitcoin LN is fine. For anyone who hasn't tried it yet: try it! Get a wallet, add a small amount, and enjoy low fees. Many instant exchangers and more and more "normal" exchanges offer LN withdrawals.
And since the server provides both seeds, then the game is not provably fair because those seeds could be tested before the runs to warrant a looser seed for the long run.
To make it a provably fair game, users should be able to change the client seed before the bet.
So you're saying the server could get a seed designed to only give "heads" or "tails"? That's possible, but if the server tries to cheat that way, you can also use it at your advantage so that makes it a risky game to play.
why telegram as we have so many bad experiences on this platform .
Dealing with untrusted people is what causes problems. Telegram itself isn't the problem, the platform works fine.