A downloadable game for Windows

Buy Now$4.99 USD or more

One dark night Ava is driving through the country side just minding her own business. When all of a sudden a meteor shower begins bombarding the surrounding country side, striking here car. After the accident she is struck with new and terrible power. To grow into a Colossal Mutant! Her mind now corrupted by this power, she grows to an enormous size in order to assert her dominance over this world.


  • 7 worlds to explore with multiple paths and optional side goals.
  • Full Motion Video staring actress Suzi Lorraine
  • City destruction
  • 4 mini games


Buy Now$4.99 USD or more

In order to download this game you must purchase it at or above the minimum price of $4.99 USD. You will get access to the following files:

MCfOS_Install_11.exe 324 MB


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will not a new giantess game come from you soon ??

Hi, so I'd really like to make a new giantess game. Life just get's in the way you know? I'm going to make an effort to create a new giantess game next year. So watch my account for news.

This game is dead :(

(1 edit)

What do you mean?

Ok, did you try downloading the game through the itch.io PC app? If so, try downloading it directly through the website.


Just bought this game but itch wont let me run it , : This title is packaged in a way that is not supported.

any ideas ? 


Hi, I've not encountered this before. I believe the game is just an install file that you download. Are you playing on windows?

yes :)

Ok, quick question, did you try and download it from the new itch.io digital distribution app? That might be what the problem is. When I released this that wasn't a thing. Try downloading it from the page directly, then get back to me.


HI, just saw you replied , ill try that !

So, did you manage download the game?