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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 4.5 / 5 stars

Very interesting game concept, I really enjoyed it. It was just a little too sarcastic for my tastes but overall still funny and enjoyable. The puzzles were easy for me until the last one with the arbitrary symbols.

tjubert responds:

Thanks. Yeah, I'd scale back a bit on the voice if I did it over, I think.


Rated 4.5 / 5 stars

My only problem with this is that you seem to try to prove the existence of god through circular reasoning, circular reasoning is a fallacy therefore you havent proved god exists in any way because it's just like saying if god exists then he exists which is dumb

tjubert responds:

Glad you enjoyed it.

If you read the level goal for that argument you'll see the goal isn't to prove anything - just to make the argument valid. An argument can be logically valid without being true or informative.


Rated 5 / 5 stars

Amazing game, it really made my brain work a sweat for some till I understood how the line of though was made.

tjubert responds:

These sorts of puzzles can be really rewarding, glad you enjoyed it.


Rated 4 / 5 stars

It's a nice little logic game, for sure. Near the end, I was relying on the Brain hints for a little bit, but on the whole, still a great way to make you think.

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Rated 4.5 / 5 stars

Loved the style and thoughts behind the game.
Seems really unique to me.

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tjubert responds: