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ir/rational Redux

rated 4.24 / 5 stars
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Puzzles - Other

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

Great game. Please make another one, but longer and without the drop down menu bug/issue.

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Rated 4.5 / 5 stars

Absolutely love it! I hope I can find more games like this. I only took half a star off though because I couldn't see all the options on the drop down menu, and more than that, there was no indication that there even were more options.


Rated 4.5 / 5 stars

It's great, but I got stuck in the last level... BTW, the link you gave me didn't work, but I found another walkthrough. Problem is, it gave the answer but didn't explain why that's the answer. I don't think it should be a problem if I give out what I got so far, because I didn't figure it out anyway.

*If GMM, then (If G, then A).
*If M and A, then not E.
*If O and V, then not E or R. If not E or R, then O or V. --- At least I'm assuming that's what the both-ways arrow means.

But what do I have to work with? If this, then that. Shouldn't there be an assumption or fact before each "therefore" statement? What am I missing? I know the answers are A, not E, and O, but why?

Understanding that's out of the way (whether tjubert responds to my review or not is irrelevant, but preferred), I am (or was, at this point) typing my basic thoughts on the rest of the game. Heh heh. Overall, great! Today I learned who Atkinson is. Art, good. Animation, good enough. There's a lot of puzzle games I don't like, but this one's totally different than anything I've seen before. Can't wait for another one!


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

Who_would_have_thunk_the_year_of_geom etry_i_just_finished_would_actually_c ome_in_handy!Thank_you_Mr.Tompkins!