Be a Supporter!

ir/rational Redux

rated 4.24 / 5 stars
Share Links:
Puzzles - Other

Click on an icon to vote on this!

Credits & Info

Jul 8, 2012 | 6:59 AM EDT

If you liked this, check these out!

Plenty more like this here!

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

If I already took an advanced math class, the game was not too challenging.
If the game was not too challenging, I enjoyed it.

I already took an advanced math class.
Therefore, the game was not too challenging.
Therefore, I enjoyed it.

The plot was interesting and well-done, and, being a sucker for hardcore philosophy, the game description alone had me hooked.
Thanks for the well-used break from homework. I will probably play this again, when I'm studying for a logic exam.


Rated 5 / 5 stars

IF AND ONLY IF I enjoyed the game THEN I would have finished it.

I finished it.

Seriously, 5/5 for originality and fun. I'm playing this one at work, and I would seriously have stayed late if I hadn't completed it in time.

People find this review helpful!


Rated 5 / 5 stars

Great game. Tough to solve on first try, but not impossible!


Rated 5 / 5 stars

This game is...WONDERFUL!!!!!!!!


Rated 5 / 5 stars

Nice game, really original. I loved it that everything was logical. It would be nice if you would make a second part of this:)