ir/rational Redux

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http://steamcommunity.com /sharedfiles/filedetails/

UPDATE 3: ir/rational has made the front page with 45,000 plays in under a week! Thank you everyone - and keep your eyes peeled for announcements in the coming months!

UPDATE 2: Walkthrough available here: http://blog.tomjubert.com /2012/07/irrational-walkt hrough.html

UPDATE 1: Made 10,000 views and the Popular Games list in 24 hours! Thanks to everyone who's played!

Argue the toss in a twisted tale of logic...

In ir/rational you complete, create and discredit arguments by selecting propositions and filling in the blanks. It's a puzzle game based on propositional logic, and a graphic adventure all in one - only here you don't so much need to escape the room as prove why you'd even want to.

- Unique, language-based argument system: formulate logical proofs to progress through the game

- Dark philosophical comedy by Tom Jubert, writer of Penumbra, Driver: San Francisco and FTL.

- 10 screens and roughly half an hour of intelligent, challenging and inventive gameplay

- Musical score by award-winning composer Mikko Tarmia

My website: www.tomjubert.com
My narrative design blog, Plot is Gameplay's Bitch: blog.tomjubert.com

- Click to progress story
- Complete the arguments by selecting options from the drop-down menus

NB Some systems don't display all the dropdown options at once, and you have to use the arrow keys to scroll.

If you can't see the right answer, chances are you can resolve the problem with the arrow keys. Hope it's not dampened your enthusiasm!


To get missing options, press the down key while menu is open

To everyone said the a Australia level is broken: IT'S NOT
read the description:
If you can't see the right answer, chances are you can resolve the problem with the arrow keys.
never rate low on any game because of your stupidity

People find this review helpful!

This was a very fun and intellectually challenging game, I hope that more like this can be made. I actually have never taken calculus and relatively suck at math but I am very fond of psychology and philosophy. So I think those two interests greatly helped me in the last challenge. I also tried to use what I know of physics with the arrows meaning yield. but enough of my rambling, this was a wonderfully challenging game and I recommend it to all who believe they are intelligent. TEST YOUR LOGICAL REASONING HERE

People find this review helpful!

I am amazed by the fact that proving im breathing oxigen was really hard for me to do. You did an exellent, interesting and challenging game. Really,really well done.


A; -E; O .

Why? I have no idea. I suck at math and my brains wok gramatically, so I proposed affirmatives that could make me reach the awnser. Here's how I did it.

G = The sky is blue
IF M = I know that THEREFORE G = The sky is blue AND A = I can see
THEREFORE A = I can see

IF M = I know that AND A = I can see THEN NOT E = I am blind (or: I am not blind)
THEREFORE NOT E = I am blind

IF O = All that I stated is logical AND V = Correct THEN NOT E = I am blind OR R = Stupid
THEREFORE O = All that I stated is correct

That's it, though the logic gets a bit limp at the end, I did it.

tjubert responds:

Thanks for the rating, but would you mind not putting the final puzzle solution un-obscured at the top of the comments? Thanks!

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Credits & Info

4.24 / 5.00

Jul 8, 2012
6:59 AM EDT
Puzzles - Other