A downloadable game for Windows

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The 100 challenge

A relaxing experiment...

This game challenges you to correctly guess 100 randomly generated numbers.
Obviously, the aim of this challenge is not to demonstrate your psychic abilities by guessing each and every number to you presented.
What you're supposed to prove is the theory that says relaxed and focused states of mind are able to achieve longer streaks of precognition.

To keep things as fair as possible, your guesses remain within your mind the whole time.
You won't have to input any number before each check, where you'll confirm a correct guess by pressing the spacebar on your keyboard.
This way you'll be able to keep track of your progress in real time.
An overall view of your results will be available at the end of the challenge.

Now you may be thinking that cheating should be easy enough, right?
Just press the spacebar everytime to fake a correct guess where, in fact, there was none.
But... since you're testing yourself, cheating does appear to be useless.

Feel free to try, record, and share this experiment alone or with your friends.

Minimum system requirements:

  • O.S.: Windows® 98/ME/2000/XP/Vista/7/8/8.1/10
  • CPU: Pentium® III 800 MHz or higher
  • Screen resolution: 1280x720
  • Free hdd space: 215 MB
  • Free ram space: 512 MB
  • GPU memory: 128 MB
  • DirectX®: DirectX® 8.0 or higher

When downloading, please, consider a donation to support the developer. Thank you! ❤️

For questions, help, and support, feel free to contact me on twitter (@evonture), or on the Discord server linked below.

Official Discord


Rated 4.7 out of 5 stars
(3 total ratings)
AuthorAndrea Pignataro
Tags2D, artgame, Atmospheric, Difficult, Experimental, mind-bending, Minimalist, Mystery, Relaxing, weird
Average sessionA few minutes
LinksTwitter, Patreon


Download NowName your own price

Click download now to get access to the following files:

The_100_challenge.exe 44 MB

Development log


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With all the horror games you made, I expected a Doki Doki Literature Club style twist. I played all the way through nervously waiting for some jumpscare or something then it never came. I considered playing again while "cheating" to see if horror elements came then, but was both too cowardly and too impatient with the relatively long timer between numbers to do so. 10/10 experience.


Haha, thanks, but no, this one is just "what it says on the tin." If horror elements are featured in a creation of mine, the latter usually sports "horror" among its tags. Except when it's an unlockable secret, like with Tiles-Up.
Hey, by a strange coincidence, today is the only day of the year when that Tiles-Up's secret can be unlocked. 😉

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I've never engaged in this kind of experiment, so it was pretty cool to be able to do so. I really enjoyed the music, and it helped to create a nice and relaxing atmosphere. It turns out that my go-to numbers from 0 to 9 are 3, 5 and 8, so I ended up choosing those a lot. I really enjoyed playing this game, and I would love to play another one like it. It's actually pretty cool to be able to test yourself and find things out about yourself through experiments like this one. Oh, and would it be alright if I shared my results here?


Thanks and sure, go for it! 👍


Cool! Here they are:

I didn't do so well...


Don't worry. Oddly enough, with time and patience, they tend to get better. It's an interesting experiment that leads to more questions than answers, but that's part of the fun.

Alright. I'll definitely give it another try, then.


Nice experiment :) , but  I choose the same number all the times, and the "AI" doesn't get it.


Thank you, but there's no AI.😃 We're purely talking about probabilities here. And the numbers are the most fair and random as possible. So, in reality, is "game" you play against yourself, where your "AI" is put to test.😉