Roulette Game Add-on for Crypto Casino

About Roulette

Rouletteis an add-on game for the application.
This game can not be installed and used on its own without having
purchased and installed first.

Roulette Features

Types of bets

  • Red / black
  • Odd / Even
  • Low / High
  • Dozen
  • Column
  • Street
  • Split
  • Corner
  • Top line (0,1,2,3)
  • Straight / Single


  • Ability to double the current bet
  • Ability to repeat the last bet
  • Ability to clear the current bet

Provably fair

When you open the game page the server generates a secret and a
seed and reveals its hash (using HMAC SHA256 algorithm). The server
secret represents random roulette position (from 0 to 36). The
server seed is a cryptographically secure random alpha-numeric
string. The hash of these 2 strings helps to ensure that the
initial roulette position is not altered after you make a bet.
After the game is finished the server secret and the server seed
are revealed, so you can easily calculate and verify the hash.

When you play a game you can pass an extra custom string –
client seed (if it’s not specified a random number is automatically
generated by your browser). The server will then calculate another
hash using the server secret, the server seed and the client seed.
The last 5 chars of this hash (representing a hexadecimal value)
will be converted to an integer. The result number will be used to
rotate the roulette wheel N extra times. Because the client seed
can not be predicted by the server the number of extra roulette
spins is completely random and hence you can be sure that the game
result is fair.

To check that a game you played was fair go to History >>
My games page, select a game and click Verify button.

Game settings

A casino administrator can:

  • Set min and max bet amount
  • Set default bet amount

Demo environment

Please sign up at to test the application. You can use the
following credentials to check the backend features:

user: , password: admin


  • 1.6.4or higher.



v1.1.0 - 14 May 2019
- Six line / double street bet added (bet on six consecutive
numbers that form two horizontal lines, e.g. 31-32-33-34-35-36).
- Bug fix: new server hash is not refreshed on the client side (in
a browser) after each game.

v1.0.0 - 10 May 2019
- Initial release.
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Roulette Game Add-on for Crypto Casino

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