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ir/rational Redux

rated 4.24 / 5 stars
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Puzzles - Other

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Credits & Info

Jul 8, 2012 | 6:59 AM EDT

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Author Comments

UPDATE 4 (8th September 2012): IR/RATIONAL INVESTIGATOR ANNOUNCED! /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: /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:
My narrative design blog, Plot is Gameplay's Bitch:

- 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!



Rated 5 / 5 stars

nice game, I really like it! especially that last one... It took me a couple minutes to realize that the G and the M were statements of their own. but this is a nice logic puzzle game, that is definitely a challenging use for a couple minutes. I hope you make more! But for now, I will just have to play again! SO FUN!


Rated 5 / 5 stars

This game was awesome. Logic is hella fun. I definitely want a sequel.


Rated 0 / 5 stars

I feel like such an idiot, that I'm crying.

I don't get any of these, and I feel so stupid.


Rated 4.5 / 5 stars

1: IF the machine is perfect and must test me, THEN it shall not kill me.
2: The machine must test me, or it is not perfect.
3: IF the machine is NOT perfect, THEN it will kill me.
4: The machine is NOT perfect.
5: The machine killed me.

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Rated 4.5 / 5 stars

I haven't come across a game as original as this one in quite a while! It was perfect, except for the fact that the last puzzle (number 10) is crazily-hard. I was only able to solve it when I started messing around with the arrow-keys and I saw the right answer.

You should definitely make a sequel to Ir/rational Redux, but I'd strongly encourage you to use a different type of drop-down menu, if that's possible, one where answers aren't occasionally hidden.

tjubert responds:

I promise, I will never use drop downs again. Believe me.