How much will a player receive in case of a win? I mean, does the site take away some percentage of the participating players? Will the video how this system works at all? Somewhere I already saw something similar in the year 2014 and it did not take root among the community.

Just sharing my review.
Well, upon visiting your site it is quite interesting. While I am reading the FAQ and TOS the theme color looked likes unfriendly to my eyes(that is not a big problem). We know there are a thousands of gamblings site out there and always having competition in having a promotion like having a contest. Are you planning to have promotional exposure like having a signature campaign or social media campaign? By the way, congrats and welcome to the gambling industry and on this community as well.

BH is not a lottery, etc. in which to win more than you spent is almost impossible, in such lotteries on moment you Deposit lottery give you huge rewards, but it's just a publicity stunt. In BH system while there are three coins Litecoin, Dogecoin and Ravencoin. Bonuses are not considered yet, the only for refferal program will be more interesting conditions for the first users.

If this is the criterion for choosing the crypto, you should probably consider Bitcoin Lightning Network which allows making transactions cheaper and faster because of an off-chain solution it offers. I am mentioning this because even though there clearly are problems with Bitcoin when it comes to small and regular transactions, it feels very strange to see a website that does not accept it. Also, why Ravencoin? You're saying that you don't have your own token, but do you have some sort of partnership with them? it's just that Litecoin and Doge seem way more popular than Ravencoin which makes it look suspicious.
And since the website is new and the game is PvP, there is this problem when to play one needs to wait an undefined amount of time so that at least someone joins the game. IMO this can spoil the experience, so do you have any plans of attracting people with welcome bonuses or adding bots so that at any point in time a person is able to play?
Good luck!

This is a good idea, but it will not work quite right, because without the transaction hashCode, the winner can not be chosen, unless it is just a visual example, I will offer this to the developer - the idea with the demo chips

Thank you comment, we have no partnership with ltc, doge or rvn. Ravencoin chosen to show lower-price segment and to show that we can add other coins and tokens with lower marketcap. Coin in BattleHashes are completely unrelated to each other and are on different servers. The idea with bots I think will be implemented in the near future(some percentage of the system revenue will be directed to bots)!
Bitcoin Lightning Network will also be considered.

Still not have much cryptocurrency that gamblers can choose. I like the idea having votes if whether to add a coin or not but I suggest there's no need to have vote when adding bitcoin to use as one of the payment system. There is a team out there who also have the same goal about creating a PVP gambling.

Have You Ever Wondered...

In a lottery in which you pick 6 numbers from a possible pool of 49 numbers, your chances of winning the jackpot (correctly choosing all 6 numbers drawn) are 1 in 13,983,816. That's 1 shot in almost 14 million. If you were to buy one lottery ticket each week in such a scenario, you could expect to win once every 269,000 years.

In BattleHashes the winner always takes more than he spends!