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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

Excellent, a flash game that makes you think. I thank you for this treat.

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Rated 5 / 5 stars

9 harder than ten good game


Rated 5 / 5 stars

I really, really enjoyed this, although I found it infuriating XD Sadly, I guess my logic skills are lacking, as 9/10 has me and my sister stumped, but that hasn't put me off the concept at all. Congratulations on a great game :)

tjubert responds:

Loads of people struggle with 9. It's a lot simpler than you think, you just need to make sure you've shown your working. Don't be afraid to state your interim conclusion (even if you seem like you're repeating itself).


Rated 5 / 5 stars

one of the best games ever


Rated 5 / 5 stars

This was really fun! I took a symbolic logic course last semester (spring 2012) and I enjoyed it. I never thought I'd use it again, even for a game, but I had a lot of fun playing it and didnt have to use any hints! Yay for a decent memory!

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