CryptoKitties History – The Birthing Fee

Many players, both new and old alike, may not realize that the CryptoKitties birthing fee has not always been 0.008 ETH.

So here is a quick walk through the history of the birthing fee:

Nov 28, 2017: CryptoKitties launches with a birthing fee of 0.001 ETH
Dec 3, 2017: Birthing fee increased to 0.002 ETH
Dec 4, 2017: Birthing fee increased to 0.015 ETH
Dec 11, 2017: Birthing fee decreased to 0.008 ETH

Historical References

🚨🚨🚨🚨 Due to network congestion, we are increasing the birthing fee from 0.001 ETH to 0.002 ETH. This will ensure your kittens are born on time! The extra is needed to incentivize miners to add birthing txs to the chain. Long-term solution will be explored very soon! 🚨🚨🚨🚨

2:13 PM – 3 Dec 2017



1:25 PM – 4 Dec 2017

❤️❤️ We have dropped the birthing fee from 0.015 ETH to 0.008 ETH. Happy breeding everyone! 🐈

11:28 AM – 11 Dec 2017


Ralf Putmans (DerpyBastard) has graphed these birthing fee values against the ETH/USD price to chart the breeding price in USD over time (from November 28th, 2017 up through April 14th, 2018):

Birthing Fee

The average breeding price in USD over this entire time period is $6.06. Since the distribution of cats is skewed, the average amount spent to actually breed each kitty would be slightly different. You could overlay the births/day to calculate that number.

If you want to delve into the data, then please check out the Google Sheet that Derpy created:

About the Author

This article was written by Byzantinist (a.k.a. Byzantine Kitty), who is an expert on digital cat genetics. As a passionate aficionado of 100% 🐎 Purebred cats, Byzantinist runs a 🐎 Purebred Siring Shop that can be found here:

If you have any comments or feedback, you can contact me at or on Discord @Byzantinist – 🐎 Purebred Sires#2992

Miss Kitty WINNERS!

The winner of the beauty pageant is…Miss Kitty England!

Congratulations to Cleocatra, Kitty #505689!

Miss England

We had a panel of judges score each kitty. We also used a community poll to add bonus points to each kitty’s score. The kitties’ aesthetics (prettiness) were 80% of their scores, and the answers to the pageant questions were 20% of their scores.

If Miss Kitty Universe cannot fulfill her duties (i.e. doesn’t want to wear the gold medal), her runner-ups will be asked to take on that responsibility.

First runner-up:

Miss Kitty Russia! (Kitty #512990)

Miss Russia

Second runner-up (tie):

Miss USA (Kitty #468904) & Miss Canada (Kitty #524908)

Miss Kitty Runner-Ups

Fan Favorite:

Miss China (黑福猫 China-Ink Fu, Kitty #486311)

Miss China

Congratulations to ALL the kitties who participated in the International Beauty Pageant! We loved looking at beautiful kitties from around the world and hearing their answers to pageant questions. Thank you so much for playing!

Miss Kitty Finalists

These are the finalists for the Miss Kitty Beauty Pageant. Enjoy and vote for your favorites at the bottom!

Miss China (黑福猫 China-Ink Fu, Kitty #486311)

Miss China

If you had a magic wand, what would you ask for and why?
What are your talents and interests?
“Hi, my name is China-ink Fu (黑福). I’m a lovely black lucky cat from the East. In China traditional culture, black color cat means mascot, Fu (福)  also means blessing and happiness. Since ancient times, People keeps me for protection against evil, I bring people fortunate and peace (辟邪消災、保佑平安、招財招福). During the two of the Greatest Dynasties of Ancient China, Qin Dynasty (秦朝 221B.C. to 207B.C.) and Han Dynasty (汉朝 202B.C. to 220) , Black color was the Emperor Color. It was also called “Dark Black (玄色)” meaning Red in Black (黑中揚赤) to bless the Empire. So, I would like to ask for Fu (福)  for all crypto kitties and wish you all a Happy Chinese Lunar New Year of the Dog (祝大家狗年吉祥,財到福到).”

Mr. Sweden (Lasagna Hunter, Kitty #382429)

Mr. SwedenIf you had a magic wand, what would you ask for and why?
“Meow meow-meow, purrrrrr, meow!”
(“All I want is just another piece of lasagna, nothing fancy, meow!”)

What are your talents and interests?
“Meow meow, MEOW!, meow meowww purr.”
(“Shakin’ dat booty, fighting the patriarchy, picking on mice and eating fresh, straight from the oven, lasagna.”)

Miss USA (Faded America, Kitty #468904)

Miss USAIf you had a magic wand, what would you ask for and why?
“I would ask for a decentralized currency that allows for the trading of humans so we can choose the human that suits us best.  More power to the kitties…..and World Peace!”

What are your talents and interests?
“I’m an excellent breeder with the highest quality genes.  I enjoy riding Unicorns, it says so in my bio.  I know how to grow catnip in large supply.. I’ve been told I’m the largest distributor of catnip in the world.  I groom myself.  I swallow my fur balls without coughing them back up.  Can’t help but feel, I’m one independent sassy kitty of the highest degree.”

Miss Canada (Silver Mittens, Kitty #524908)

Miss Canada

What is an issue that cryptokitties like yourself face today?
“There are a lot of jewel thieves in the cryptokitty world! I would do my best to help my cryptokitty brothers and sisters so that no one would feel the need to resort to such actions! We are all rich because we have loving owners 🙂 ”

What are your talents and interests?
“I am named silver mittens not only because of my fur colors but also because I love to paw and play with shiny things! My owner says my best talent is being able to wake her up on schedule with gentle purrs and cuddles 🙂  I also bring my owner meals I have caught to do my part in ending cryptoworld hunger xP”

Miss Italy (Kitty #48788)

Miss ItalyIf you had a magic wand, what would you ask for and why?
“Chiederei che non ci fosse possibilità di guadagno con noi cryptogatti perchè la maggior parte delle persone ci sfrutta solo per un ritorno economico.”
(“I would like that wasn’t possible to earn eth from us cryptokitties because a lot of people look at us only like an investment.”)

What are your talents and interests?
“Sono una cercatrice di petrolio di fama internazionale. Ho scoperto più di 100 nuovi pozzi da quando ho iniziato. A volte quando trono a casa la sera il mio padrone mi scambia per il suo onyx.

(“I’m a world-class oil seeker. I discovered over than 100 new oil wells since I start this job. Sometimes when I come back home from work my owner thinks I’m his onyx cat.”)

Mr. France (Cutest Painter, Kitty #537893)

Mr. France

If you had a magic wand, what would you ask for and why?
“I would ask a time machine. I would then be able to travel to Paris at the beginning of the 20th century when the artist were at their best. I could meet legendary painters and live in Montmartre and paint all day long.”

What are your talents and interests?
“My interest is painting. My best talent is teaching painting. That’s why Salvador Dali ask me to teach him how to master painting. I accepted him as my apprentice but under one condition: he had to grow the same style of mustache as me!”

Mr. Germany (Kitty #531556)

Mr. Germany

If you had a magic wand, what would you ask for and why?
*waves* “Hello! I’d wish for a house. I always wanted my own. Obviously, it would produce food, especially tacos and ice cream. Don’t judge me for looking fat, I have fluffy fur.”

What are your talents and interests?
Talents: “Eating 50 tacos in 10 minutes.”
Interests: “Currently doing research on combining ice cream with tacos.”

Miss Russia (Kitty #512990)

Miss Russia

If you could live your life over, what part of your life would you change?
“Мне многие говорят, что я похожа на облачко во время грозы. Сначала спокойная, но неожиданно мой взгляд приковывает внимание и мои глаза начинает стрелять молниями. И я действительно обладаю суперспособностью – покорять всех своим очарованием.

Если бы я могла прожить свою жизнь еще раз, я бы сделала всё, чтобы попасть в команду Мстителей или Людей Х. Я и Гроза или я и Алая Ведьма были бы идеальной командой. Мб Наташа Романова сначала не полюбила бы меня, потому что я превосходила бы её своей красотой и очарованием (и навыками супер убийцы), но потом – мы стали бы лучшими подругами. Я уверена, что я была бы самым незаменимым членом вселенной Марвел.”

(“Many people tell me that I look like a cloud during a thunderstorm. At first I am a calm girl, but unexpectedly my sight attracts attention and my eyes start to shoot with lightning. And I really have the superpower – to conquer hearts with charm.

If I could live my life again, I would have done everything to get into the team of the Avengers or X-Men. Storm with I or Scarlet Witch with I would have been an ideal team. Maybe Natasha Romanova first would not love me, because I would surpass her with my beauty and charm (and the skills of a super killer), but then – we would become best friends. I’m sure that I would be the most indispensable member of the Marvel Cinematic Universe.”)

What are your talents and interests?
“Таланты: обворожительность и очаровательность; навыки суперубийцы; мастер капоэйра; невероятная харизма; милые позы для сна.

Интересы: вселенная Марвел, прыжки с парашютом; люблю ухаживать за домашними рыбками; сногсшибательные татуировки; путешествия по всему миру (чтобы дарить лучи тепла и добра 😇).”

(Talents: fascination and enchantment; super-killer skills; capoeira master; incredible charisma; cute poses for sleeping.

 Interests: Marvel Universe; parachute jumps; I love to take care of my gold fishes; stunning tattoos; travel around the world (to give the rays of warmth and kindness 😇).”

Miss Spain (Maria Dolores, Kitty #510519)

Miss Spain

If you had a magic wand, what would you ask for and why?
“Arre you kidding meow?? I am a Spanish gypsy queen! I’ve had a wonderrful gypsy life that has been the envy of all cats! I only rregret having lost my beloved son Negato… he neverr underrstood my unhealthy obsession for tarrtar sauce and garrlic!”

What are your talents and interests?
“I am purrebred Gypsy! I am a tireless travelerr, adventurous, seductive dancerr, hand readerr, motherr of Momo-Chan’s… and ice cream lover! Ninja blood rruns through my veins and I have contacts in the highest spheres. I just want our onyx beautiful colorr among all the cats in Catopolis!”

Miss England (Cleocatra, Kitty #505689)

Miss EnglandIf you had a magic wand, what would you ask for and why?
“I’d ask for the map to the land of my forebears, which is born into the mind as a cloth of scattered diamonds beneath the paw of any kitten who wishes to walk the path. Explorers of this land, once they return, may bestow gifts of knowledge of the beginnings of the cryptoverse, and the divine formation of the most recent block. I’m told the forebears also make incredible cucumber sandwiches. I absolutely have to try these in at least one of my nine lives.”

What are your talents and interests?
“When I was younger I learnt that I had the ability to recollect my past lives. On a Sunday as I settle for one of several naps, I let myself drift along the stream of time and awake to a Galaxy on the outer reaches of the Etherverse, where my friends of the 5th life and I waded through liquid pearl to find the host planet of our lost dream partners. On Tuesdays, I travel to Sector Esanterriqual, where my lover and I learnt the magic of peace. We scattered golden ears of corn among the playing fields of Ialay, 9th Moon of Toron, and turned the sky into a sea of sparkling golden fishes to feed the planet’s kitten population. Some days I even remember a life when I came to Earth in Mexico at the beginning of the Cretaceous era, but that’s another story. As you may have noticed by now, in my present life, the 7th, I like to day-dream a lot. I haven’t done much of importance yet in this life, but it’s nice to spend some time reflecting when you have several, and who knows how busy exploring and making magic I’ll be in the 8th.”

Vote for your favorite three (3) kitties below, but DO NOT vote multiple times. You may encourage others to vote, but DO NOT campaign for your specific kitty (contestants without CK friends deserve a fair chance).

The results of the poll will only account for a PORTION of the kitties’ final scores. If I discover any cheating at all, the poll results will not be used and we will rely on our judges’ scores only. (If you can’t see the poll, you may vote in the comments.)

(For Firefox users:)
Vote for your three (3) favorite kitties!

Kitty Treasure Hunt

UPDATE: The prize kitties have been sent out! If you were a winner and don’t see your new kitty, please let me know ASAP.

We’re having a kitty treasure hunt this week! We’re giving away 5 free kitties as prizes (provided by kitty breeder Uynix). Here’s how it works:

cookie treasure

  1. I have chosen a Secret Kitty and will give out clues to its identity every day.
  2. Each day, participants may submit one (1) guess as to who the Secret Kitty is.
  3. The first person to guess the Secret Kitty correctly is an automatic winner. Everyone else who guesses correctly by March 1 will be entered into a random drawing for the remaining four prizes.
  4. Winners may choose ANY kitty they want from Uynix’s Prize Kitty account.


Clue 0: The Secret Kitty lives here.

Clue 1: The Secret Kitty loves Christmas (she wants to be Santa Claws when she grows up!). Wild_D gene

Clue 2: The Secret Kitty wouldn’t mind living at the North Pole. In fact, she’d blend right in! Cloudwhite

Clue 3: Hmm…on second thought, maybe Secret Kitty doesn’t want to be Santa. She’s not terribly fond of facial hair. Not beard, neckbeard, or dali.

Clue 4: The Secret Kitty’s pattern may not be fancy or exotic, but at least she has one, right? It’s better than nothing! Not totesbasic.

Clue 5: Secret Kitty’s favorite movie is Gone with the Wind, her favorite author is Nathaniel Hawthorne, her favorite actor is Anthony Andrews, and her favorite Bible verse is Isaiah 1:18. Scarlet

Clue 6: Secret Kitty is all cat–she doesn’t have any features that are named after other animals. No flamingo, gerbil, serpent, koala, etc.

Clue 7: Secret Kitty has accepted that she will never be Santa Claws; she wants to work in a candy cane factory instead. Luckystripe

Clue 8: Some people think Secret Kitty is a simpleton, but she knows that with a good attitude and a friendly warm smile, even simple kitties can change the world. Simple eyes, smiling.

The Secret Kitty was Kitty #511386! I will announce the winners as soon as possible.

secret kitty

Special thanks to Uynix for sponsoring this treasure hunt! If you’re interested in any of his kitties, you may contact him here: or Discord: @Uynix#3368