Hi ndnhc,

Thanks for trying out FastSlots. Sorry to hear you lost, I just sent you a small bonus to compensate...

The house edge is 1%. It works like this: when you click red, the probability of red coming up is 49.5% and the probability of black is 50.5%. If you click on black its the other way around. We describe our algorithm in detail here: https://fastslots.co/fairness

Did you try out our 'one click provable fairness'? Just open the fairness tab under the game and click on verify.

UPDATE: The "LONGEST DOUBLE OR NOTHING WINNING STREAK IN HISTORY" competition has come to an end. Congratulations to the winners (see below). We will have a new competition soon. If you have any wishes or ideas for a competition, just let us know.

Thanks ndnhc!


I’m Henry, the founder of FastSlots. We’re really happy to release our bitcoin casino.

We’ve built FastSlots around guiding principles of being fast, fun, and fair. Let me explain what we mean:

Fast. FastSlots is built on a modern technology stack (node.js and HTML5) that guarantees that our games load within seconds. This allows users to get to the action without waiting for slow downloads. As our games are optimised for mobile, users can enjoy gambling when on the go.

Fun. We believe that bitcoin gambling can be more fun than simple dice games. We also think that there are games that are better suited for mobile and desktop gambling than the 30+ years old games that are offered at most online casinos. FastSlots will offer a variety of games, some will be adaptions of existing games, but others will be completely new.

Fair. FastSlots is provably fair. In fact, we are taking provably fair to the next level. Unlike other casinos that require users to copy numbers into web forms, FastSlots allows users to verify a bet with a single click. We are also upfront with the payout a user can expect from our games: the house edge of each game is displayed directly on the homepage.

Other features of FastSlots include anonymous sign up (we hate spam, so we do not ask for email addresses), instant deposits (0 confirmations) and withdraws (usually 1 confirmation), and obviously, a live chat. We will offer superior customer support by chat, email and through our BitcoinTalk thread. Finally, FastSlots is a mobile first casino, so all our games are designed to work well on mobile devices.

We are a startup in the bitcoin gambling space and we’d love to get feedback from the BitcoinTalk community. Please tell us what you like and what you don’t. We promise to listen and iterate :-)

We also have a bonus program available. PM me and I’ll set you up!

Happy gambling!

My name is Henry, I founded FastBets. Should you have any comments or just want to say hi, shoot me an email at henry@fastbets.io.

Good luck my friend :-)

This is a great list. Really instructive as to what works and what does not in bitcoin casinos.

I think that sorting by $$$ wagered is more meaningful than by number of bets though.

Great idea. I think there should be more people trying innovative things in gambling. You might want to iterate on your UI and UX a bit though.

Good luck!

I much prefer sites without signup. Isn't this one of the strong points of bitcoin gambling?

There are several different hash functions such as sha, md5, or haval. They can be applied to a string and return another string called a digest. Hash functions have some interesting properties:

* it is easy to compute the digest for any given string
* it is infeasible to generate a string that has a given digest
* it is infeasible to modify a string without changing the digest
* it is infeasible to find two different strings with the same digest.

You can learn more about hash functions on wikipedia (http://en.wikipedia.org/wiki/Cryptographic_hash_function)

The php function 'hash' takes two inputs, a hash algorithm such as sha256 and a string to be hashed. For example 'hash("sha256", $str)' will return the sha256-hash of the string $str. I guess what you are looking for is the hash of the concatenation of $var1, $var2, $var3. Try 'hash("sha256", $var1.$var2.$var3)'.

See https://blockchain.info/charts/avg-confirmation-time.

Does anyone know why that is? Could this due to Bitcoin Core 0.9.0?