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Uploaded
Jul 8, 2012 | 6:59 AM EDT
  • Daily 2nd Place July 9, 2012

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Author Comments

UPDATE 4 (8th September 2012): IR/RATIONAL INVESTIGATOR ANNOUNCED!

http://steamcommunity.com /sharedfiles/filedetails/
?id=92933628&searchtext=

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: http://blog.tomjubert.com /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: www.tomjubert.com
My narrative design blog, Plot is Gameplay's Bitch: blog.tomjubert.com

Instructions:
- 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!

Reviews


DanteNecrossDanteNecross

Rated 5 / 5 stars

I'm going to give this a five star rating because it was challenging yet not annoying, At the beginnig of the game I thought I wasn't going to be able of finishing it due to english is not my mother tongue, even though I have a good level. but I found it really fun and entertainig Congratulations!



ben2121ben2121

Rated 5 / 5 stars

To get missing options, press the down key while menu is open



natyvidanatyvida

Rated 5 / 5 stars

i enjoyed the game!



pistoljuicerpistoljuicer

Rated 5 / 5 stars

This game is awesome! It uses propositional calculus but makes it entertaining! Bravo!



ricepattyhatricepattyhat

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