The game is still running and round 16 finished with 4 winners. Every winner was paid out 149% of their payment.

Sounds like a good idea. You just need to make a lot of promotion so that new users will have a chance to find your website.

You forgot to mention that half of the entry cost will be paid to the contract owner (you) and only the second half is redistributed with all members.

Thanks for the review!

So it's time that people invest a little more ...

It's not working!

The transfer to the Ethventures Contract ran into an error. And not any dividends where paid out! See https://etherscan.io/address/0xee462a6717f17c57c826f1ad9b4d3813495296c9#internaltx . After Block 1307118 there was no payment to the investors.

Cool game with fun factor 

Sorry but sounds like lame excuses.
- if people send form exchanges they will also not get the intended earnings
- code and test it properly and it will work - Solidity is only a java dialect and it works!
- "if players change their address"? how to change an address?
- "if code gets stuck" - see my second point

Any answer, BetGod?

It's a good idea, but you can make it better:
It would be more trustworthy if your Emergency function would pay back all investors investment and not all the invested Ether only to you.
And a function for investors to resign and get paid back there investment (-owner fee) would be good too.

What do you think?

Already 2 Gamblers in round 16. Only 4 more needed to end this round ... Give it a try!

Just in case somebody does not know how to send a data byte together with Ether:

If you are using Geth or Ethereum Wallet (wich starts Geth in the background):
after typing in a command line, enter:
to send "0x01" and 0.1 Ether to address 0x7753A9D834844cFDe5C211ec3912b49f0d8B8e11.

Change "0x01" to "0x81" if you want to change your bet or change value and address if you want to risk more or less (see original post).

In the GUI of Ethereum Wallet (Mist) just click SEND and after entering the address and the amount click the ADD DATA button and enter 01 or 81 in the input field below the button.

Just added a new contract for those who want to play with more than 0.1 Ether.

To join send one byte data (0x01 or 0x81) with a bet amount of 1 ether to 0x0312855bb6e548578a36fa8de63b8f0d3d7d7dc2

In the best case you can win 4.95 Ether (almost 5 times of your invest) 

see original post or verified contract for more details.

Theoretically may be. But I don't think it is really possible nor trivial in practice. There is not only one miner. And while the one tries to find a hash with and without his transaction other miners will already submitting new blocks. And btw. it would not be worth the amount he can win ;-).

That means you did not understand how it works (nor how contracts work). Not the last player wins! Read again ;-)

Did anybody checked the code? It's not a pyramid game! It's more like a Dice Game (with a 2 digit dice) or playing Red or Black on Roulette.

This one is working too -> Bet On Hash
It's similar to a dice game. 6 people are playing in a round and the lucky ones will win.

it's a round based bet game (6 players)
you bet on the first byte of the 6th players block hash (unpredictable, 50% chance)

to join:
send one byte data (0x01 or 0x81) with a bet amount of 1 ether to 0x0312855bb6e548578a36fa8de63b8f0d3d7d7dc2
 - or -
send one byte data (0x01 or 0x81) with a bet amount of 0.1 ether (100 finney) to 0x7753a9d834844cfde5c211ec3912b49f0d8b8e11
 - or -
send one byte data (0x01 or 0x81) with a bet amount of 0.01 ether (10 finney) to 0x615d2c5155ea9841f2a926c3a4953d140d407c99

(click address to check the verified contract)

if your data byte is less than 0x80 you bet the 6th players block hash first byte is less than 0x80
if your data byte is greater than or equal 0x80 you bet the 6th players block hash first byte is greater than or equal 0x80

if you lose your bet your bet amount goes to the pool for winners

if you win your bet:
   * you will get back 100% of your payment
   * you will win a proportional part of the winner pool (win amount = winner pool / winners - 1%)

payout is triggered when a player starts the next round

additional rules:
each address can only play once per round
every additional payment during the same round will be paid back immediatly
every payment below the bet value is considered as a donation for the winner pool
every amount that is exceeding the bet value will be paid back
if nobody wins in a round, the paid amounts will raise the winner pool for the next round


how to send a data byte together with Ether:

If you are using Geth or Ethereum Wallet (wich starts Geth in the background):
after typing in a command line, enter:
to send "0x01" and 0.1 Ether to address 0x7753A9D834844cFDe5C211ec3912b49f0d8B8e11.

Change "0x01" to "0x81" if you want to change your bet or change value and address if you want to risk more or less (see original post).

In the GUI of Ethereum Wallet (Mist) just click SEND and after entering the address and the amount click the ADD DATA button and enter 01 or 81 in the input field below the button.

Bet On Hash is a new round based bet game. For more details see the verified and bug checked contracts here and/or here.

Have fun!   

https://blockchain.info/address/16SuiM7QZU6HUo73XP3hsw2TQ4NDfCc52

What happened there?