Well, for just testing with play money, there will be no fees. In case it is launched with bitcoin, then I am thinking of an small 1% or 2% fee just like in any other gambling site.
In this game, the case that nobody wins ist not possible, because the game starts when one player places a bet, and if there are no more beds, that player just recovers his bet.

Well, copying is boring. Innovation is more exciting, even if it becomes a failure.

Thanks for all the comments and feedback. At least the post opened an interesting discussion.

I've been myself player of dice, poker and other games. I am just trying to create something different and that depends more on strategy and skill rather than in luck.

First of all, let's don't call it a lottery, it can be called a prediction or betting game. Then, there is the problem of last-minute tickets advantage over other players. I think this can be avoided by doing the game run continuously, without 'round', so every ticket/prediction is checked against the jackpot after an equal period of time, for example, a day or a week. And let's say that the winner gets 50% of the jackpot, to avoid that it goes to 0. With these changes, it is more difficult to predict the jackpot, because some other player may win after you place the bet, so the jackpot will decrease to half.

I realize that this concept of game still need more thinking and work. I think I am going to make a simple website with 'play money', so everybody can test the idea, suggest variations and perhaps we end up with a game that works. Will see...

Thanks for all the comments. I agree that this game have some problems. The principal one is that a big whale may be able to always win. I am thinking of a way to avoid this. One option is that players may join together their bets in order to bit a bigger whale. Then it can become an exciting strategy game.

I think I am going to make a simple website with 'play money', so everybody can test the idea, suggest variations and perhaps we end up with a game that works. Will see...

Yes, that's a good point. That's why I am thinking that each ticket runs independently and all predictions have 1 week time period. So you are always predicting how much the pot will be after 1 week. In that week's time period, the pot could increase because new tickets or could decrease because somebody hits the jackpot.

Check my last comment, where I talk about the option that all players have the same time period for predictions.

Thanks for your comment. You are right about that the system can be manipulated and it is difficult to trust. One variation to solve this is to keep the 1 week period, but independently for each ticket, so then each player tries to predict how much is the jackpot after 1 week. Example: one player buys 1 ticket for 0.001 BTC on day 11-02-2020 12:00 hours and predicts a pot of 0.150 BTC for the day 11-09-2020 12:00 hours, then other players buy they tickets, each one with a different timestamp. On the day 11-09-2020 12:00 hours, the systems check if he prediction is true or not. In this type of game the prediction must be exactly the pot amount o we can introduce a margin of error of let's say 5%. With this system, the operator cannot manipulate the result and all players have the same chance to win because the time period is the same.

Thanks for your comment and the previous ones. I would like to know about these other websites that have similar or the same concept of game.

About the time period, that's why I suggest some way that it depends also on the player's choices. Perhaps players can choose to extend or reduce the time remaining until the end of the round. Or perhaps there is a 60 seconds expiring time from last bet. So, if one bet stays for 60 seconds without any other player placing a bet, it wins.

Also, I am thinking that to open the game to everybody, not only big whales, there could be the option of "pool bets" where many players put together small amounts on the same bet and then they share the jackpot accordingly if they win.

Hi everybody!

I have an idea for a new type of Bitcoin lottery.

Instead of a lottery where the winner is chosen randomly, I would like to see a lottery where the player can build some strategy to try to win the pot.

The lottery can be called "prediction lottery", let's say there is a period of time, for example, 1 week, after that period 1 player will win the jackpot. Everybody can buy a ticket for a fixed price, for example, 0.001 BTC, instead of choosing some random numbers like in most lotteries, the player makes a prediction of how much the pot is going to be at the end of the period of time. The prediction that is most close to the jackpot value, wins the lottery. Because it is more difficult to predict the pot at the beginning of the round than at the last minute, we can introduce a more expensive price of the ticket for last-minute players.

What do you think? Would you like to play a lottery such as this? What improvements or variations do you suggest?

Hi everybody!

I have an idea for a Bitcoin strategy game that I want to share with the community.

The idea could be called "biggest whale wins". Let's say there is a pot, any user can place a bet of any amount that goes to the pot. The only condition is that each bet must be bigger than the previous one. There is a countdown of let's say 24 hours. When the time expires, the biggest bet wins the entire pot. It is very simple, but it can be exciting, how much will you risk to win the pot, how big the pot can be?
To improve the game, we can add the option of a random period of time, so you don't know when the current round is going to end. Or also the option that the time period increases or decreases in each new bet, depending on some factor such as the difference in the bet amount from the previous one.

Example of a game's round:

player 1 places a bet of 0.001 BTC, pot = 0.001 BTC
player 2 places a bet of 0.005 BTC, pot = 0.006 BTC
player 3 places a bet of 0.006 BTC, pot = 0.012 BTC
player 4 places a bet of 0.01 BTC, pot = 0.022 BTC
player 2 places a new bet of 0.02 BTC, pot = 0.042 BTC
player 5 places a bet of 0.025 BTC, pot = 0.067 BTC
player 1 places a new bet of 0.1 BTC, pot = 0.167 BTC
player 6 places a bet of 0.15 BTC, pot = 0.317 BTC
player 2 place a bet of 0.2 BTC, pot = 0.517 BTC
round ends, placer 2 wins 0.517 BTC

What do you think? Since many people play casinos at other random games, would you like to play a game more focused on strategy? What improvements or variations can be added?