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 4.5 / 5 stars

I'm on puzzle 4, and I'm thoroughly enjoying this game. Logical thinking is one of my favorite pastimes, and this certainly satiates that hunger in my brain.

I'll be on the look out for anything you make that's similar to this.

4.5/5, only because a perfect score is an unachievable goal. Nothing in this world is perfect.


Rated 4.5 / 5 stars

Is it possible that you would make another of these? After completing that I reason that you wont, but it would be really cool if you followed it up with a totally different style of game, like a point and click in the same setting, assuming perhaps the gas didn't work or the machine knocked you out to remove organs and then eject you into the outside world; whether it be apocalyptic, in space or otherwise. Or maybe you don't provide a reason for the character's survival.


Rated 4.5 / 5 stars

I enjoyed this game. I ended up sitting here longer than expected. I was scared, due to the dark feel this game gave off, however the logical arguments kept me stationed. Thanks for a mind-assertive game, keep designing.
p.s. I'm sharing this game on my NG page because it was great.


Rated 4.5 / 5 stars

A Brilliant mind boggling game. I did have a few problems as many other people have, with level 7 and 10 with the missing option in the drop down bar.
DO NOT USE CHROME apparently that is the source of the problem and works on different browsers


Rated 4.5 / 5 stars

So here's the thing. People are confused by this:
Because they think it's all one line and the G over the 2 M's is all one symbol, like putting a letter over another letter is some kind of operation. You could make it clearer by numbering each line the way the lines were numbered in all the other puzzles, like this:
1. G
2. M->(G->A)
3. M

People find this review helpful!