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Hello,

What best contest for this kind of games?
This is easy odd-even game with provably fair, without registrations.
I want run simple contest.
Please post your opinion.

Thanks to all!

I guess the only contest you can do with such game is related to wagered amount.

User who wager most (maybe the one who win/lost the most) will win some reward or alternatively can win the user with most win/lose streaks.

I think you can take a contest example from some dice gambling sites because this game is almost the same as dice game that only have a slight differences so you do not have many options to made a contest.

Ok, but this game without registration.
How can I check wager?

For begins 0.01 LTC for free https://bitcointalk.org/index.php?topic=2038173

Thank you.

Well you can check all depositing/playing addresses. Then announce/pay the wining one.
This would require people to use same address repeatedly which is not convenient. So other way is to ask participants to provide all their addresses and prove owneship (by signing message eg.) and then announce the winners. (thinkinig it twice  ... Im affraid this would not be fully transaparent and fair as multiple users can colaborate claiming they are one person ... but thats actually not a big deal for you as your target is to attract users right? ) 

It would probably be more user-friendly to enable registrations instead of having the user signing all those addresses and then you yourself having to verify all of those..

Ofcourse, let people play without registration!
Just set an option for them so they can register and participate in contests :)

before directbet close service
i think the best contest directbet tipster contest, good reward and only high profit sport betting

True. It's pretty unhandy and I agree with the idea to register those who want participate in contest. Good point.
To take it more into details the entire process could be automated by some script and OP could make interface to ease users proving the ownership ... still not entirely smooth but could work.

@OP Can you explain how did you calculate the house edge? I'm not an expert in this but would expect to receive 1.99*my bet if the HE is 1% ( you offer only 1.98*my bet ).

1.98x is 1% house edge. 1.99x is 0.5% house edge. Google for more...

OP, you 1st need to add bitcoin and then may be a wagering contest will be the best way to promote your game. But with escrow of the prize. Otherwise nobody will participate.

Right now I only see two options here. Highest wager or highest wins in a row. Of course the last one is luck based, but so it's the game, so at least that one things would be more "fair" to everyone I guess, instead of just seeing who has more money to spent. Of course that guys with more money to spent have a higher chance of getting a higher wining streak, but some lucky user could still beat them, so I prefer that.

Create an easy to use provably fair dice game. Player who rolls 88.88 with min bet amount 0.00001 BTC wins the jackpot which immediately goes to their account and they can withdraw.

You can do free bets. There are plenty of ways you can do it, like if it is their first game and post their IDs and the transaction on a thread for games and rounds.
You will refund them if they lose or just give them what they deposited even if they win or lose.
Or something like that. Usually that is the promotion similar games do for their players.

Wow, great idea!
We will add jackpot soon :)
Our game have automatic payout, no need withdraw.
Thanks!

But it makes no sense. According this logic the 1.5x payout would be 25% HE and 1x payout would be 50% HE ? How come  ???   Theoretical max HE should be 100%.
Thats why I asked how it is calculated as I have no experience and just tried to apply common sense.

I did some quick googling and found this formula: House edge = 1 - (return / loss)  (source) (http://www.fortunepalace.co.uk/edge.html)  which gives me -98% ( assuming this number reflects the 2% HE).
Feel free to educate me. 

I'm glad you like it. Thanks!  :)

When the site is ready, let us know, maybe I'll try my luck with some rolls there. Good luck with your project!

Profit contest is also a good alternative if you don't like doing a wager contest. Win streak contest is another good one there could be more but for now those two are the only contests I can think for your odd even game.

It's correct their house edge is set at 1% because they reduce your chances of winning/lossing from 50% to 49.5%.
49.5 (losing chance)+49.5 ( winning chance) + 1(house edge) = 100 

This is applicable only to dice type game where you are able to choose your win chance which is reduced to keep the HE ... instead of regular 50% (would mean 0%HE) it's lowered to 49.5. I understand that.

But in OPs game the win chance is fixed (5 even nrs, 5 odd nrs ... so its 50:50) and the only thing he can adjust HE is by amount of winnings.
Moreover there is very, very small probability the result hash will not contain any digit ... what happens then? ( I know it's almost imposible to happen but should be clarified as well ).

@OP Why are you not reacting to my question? You should be able to easily answer how you come up with 1% HE. I started to feel you don't know.
Please show me the applicable formula for HE of your game.

One contest i would love to play is the most wagered contest and it should run for max 2 weeks as only the rich gamblers are able to wager the most. Next contest which yolodice had kept few days ago should me most profit contest as many less players are able to control so this can be a good opportunity for them

You can create wagering contest but it won't work in blockchain based game.
Users need accounts for that and you need to allow deposits in order to run any kind of contest.

Can you add which odd/even numbers one won/lost with. then launch a contest like, those who win 2 or 3 times with the same odd number (5 for an example) will win the prize/contest. makes sense?

ok, you can try OddEvenBets.com
Giveaway 0.025 LTC here https://bitcointalk.org/index.php?topic=2040084.0

You are right, 5 even and 5 odd, win chance is fixed 50:50.

Example:
1. Bet 10 LTC is lost
2. Bet 10 LTC is win
3. Return 19.8 LTC

House edge = 1 - (return / loss)
loss=20 LTC
return=19.8 LTC

House edge = 1 - (19.8 /20) = 1 %

Ok this clarifies it enough. Thanks.

BTW my second thought in post above might be what you are looking for. A jackpot for players whose hash contains no digits (could lure many players if the reward is adequate to probability this will happen).

The replies you got are unecessarily complicated

Just look at it like this

What's 1% of 2? It's 0.02
Which means 99% of x2 would be x1.98

Simple as that.

Jackpot is good. I think need if digits like 777 or 555.
I think Probability of hash without digits will be ~0..
Thanks!

Wah maybe if you were going to create a contest and new type of gambling then waggered is the best set a goal and starting point that people only use to gamble untile they will search the maximum waggered you give to them. And the jack pot will be going to be big.

tipster contest,wager contest,or maybe an easy contest in some popular dice site,making banner contest,avatar or maybe signature campaign contest will good for you,i think on this forum have some section that offer any good contest,just try it and wish you luck.

My first contest here: https://bitcointalk.org/index.php?topic=2056978.0
Welcome friends!

I think the best contest game is clash of clans. because i can well it.

If you want to simplify and make a fair policy to every user when it comes to gambling games then you must think of a new game and if cant think one then you must add some spices on the old games like having a round robin to know the outcome of the game and make the player play with the content of their heart that they really win or lose. Brainstorm some ideas, you'll put it together. Include the fun in games, not just a roll or a wish the next card feeling.

Your post is off topic based on what the OP's game. An odd-even games is not capable to apply a tipster competition because there is no betting on the game.

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I like the OP's idea for creating a game which didn't required an account in able to play. I think the contest for this kind of game a bingo game just like what PD does. But you can add some effects on your game like creating a bingo cards for each participants then post the bet hash code as proof of ownership.

Bingo seems interesting in this game. LOL
Though problem is that it the player with the most bets will likely win it faster than others.
I am not sure how it can be done that everybody has the same amount of chances even if
they all joined the game with different amount of bank rolls.

You can run monthly leaderboard contest where the one who can make maximum profit will win some good amount of free bitcoin. You can ask players to enter their receiving bitcoin address where they will be getting most of their winnings and you should keep record of all incoming deposits and payout, the one with higher ratio of payout to deposit must be selected as winner.

It might be risky might they feel that you are scamming so better to avoid these things let them to write their own if they are interested because do not take a risks like that because it is too risky and painful at the peak point so I would say that do that what you have to do. Don't interfere those places where you don't work there so I hope you might got the point.