What's New

The basic instinct of sperm towards procreation begins!

App Description

“Free” Event in Celebration of 50 Million Downloads

The basic instinct of sperm towards procreation begins!

body length 60

Generation period: 7 days

Target distance: 18cm

Maximum speed: 3mm/min

The smallest cell of man…
embarks on a quest to find the biggest cell of woman

Long journey with a traveling a distance of 3000 times its body length
The inevitable conflict and competition leading up to the fierce battle

Who will be the bravest of them all that will come out as the sole survivor out of 30 million competitors?

The basic instinct of sperm towards procreation begins!

* The characteristics of the game

1) Simple operation using touch and drag
2) It provides diverse strategic situations for each of the regions to add more depth to the game.
3) Also, because much effort was put into the balance and the difficulty levels of the game during its development, users will surely find it addictive.
4) You can upgrade the sperm using the broccolis you obtain while playing the game,
5) and you are bound to have fun eliminating estrogen (female hormone) that interferes with sperm production.

* Background of the Game

The competitive environment of procreation has made sperm become terribly aggressive over the years.
According to a study, when sperm from another male is added to semen, over 50% of it will be attacked and killed within 15 minutes.
Mixing sperms of different males will cause some sperms to create a net-like structure to prevent other sperms from moving forward.
If that is not enough, they even launch a brutal attack on their opponents by piercing holes in their bodies using acrosomal enzymes.

iPhone Screenshots

(click to enlarge)

War of Reproduction screenshot 1 War of Reproduction screenshot 2 War of Reproduction screenshot 3 War of Reproduction screenshot 4 War of Reproduction screenshot 5

App Changes

  • April 14, 2012 Initial release
  • April 22, 2012 Price decrease: $0.99 -> FREE!
  • June 01, 2012 Price increase: FREE! -> $1.99
  • July 05, 2013 Price decrease: $1.99 -> FREE!
  • August 27, 2014 New version 2.0

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