In an abrupt announcement, Irrational Games has decided to permanently close after 17 years. The video-game studio, whose most-popular gaming franchise is first-person shooter BioShock, revealed the news in a letter on the company's website.
"I am winding down Irrational Games as you know it," Ken Levine, co-founder of the Boston studio, wrote Tuesday. "I’ll be starting a smaller, more entrepreneurial endeavor at Take-Two. That is going to mean parting ways with all but about fifteen members of the Irrational team. There’s no great way to lay people off, and our first concern is to make sure that the people who are leaving have as much support as we can give them during this transition."
See also: Morality and the Illusion of Choice in 'Bioshock Infinite'
Irrational Games' final project before shuttering will be Burial at Sea Episode 2, the final BioShock Infinite DLC (downloadable content) update that comes out on March 25.

Tuesday's announcement shocked many gamers, as Levine's letter offered a vague explanation for why Irrational Games will shut down. "Irrational Games" quickly became a worldwide trending topic on Twitter.
Sad to hear that Irrational Games is shutting down. Bioshock and Bioshock Infinite were monumental games that will live with us forever.
— Zack Scott (@ZackScott) February 18, 2014
More people are upset about Flappy Bird being taken down than Irrational Games closing or Marvelous going bankrupt.
I hate today's industry
— Pinhead Larry (@SgtMettool) February 18, 2014
We're sorry to hear about the winding down of Irrational Games & send our best to our friends & colleagues. We're all big fans. Sad news.
— Volition (@DSVolition) February 18, 2014
Here is Levine's full letter:
When Jon Chey, Rob Fermier and I founded Irrational Games seventeen years ago, our mission was to make visually unique worlds and populate them with singular characters. We built Rapture and Columbia, the Von Braun and The Rickenbacker, the Freedom Fortress and some of the nastiest basements a SWAT team ever set foot into. We created Booker and Elizabeth, the Big Daddy and the Little Sister, MidWives and ManBot. In that time, Irrational has grown larger and more successful than we could have conceived when we began our three-person studio in a living room in Cambridge, MA. It’s been the defining project of my professional life.
Now Irrational Games is about to roll out the last DLC for BioShock Infinite and people are understandably asking: What’s next?
Seventeen years is a long time to do any job, even the best one. And working with the incredible team at Irrational Games is indeed the best job I’ve ever had. While I’m deeply proud of what we’ve accomplished together, my passion has turned to making a different kind of game than we’ve done before. To meet the challenge ahead, I need to refocus my energy on a smaller team with a flatter structure and a more direct relationship with gamers. In many ways, it will be a return to how we started: a small team making games for the core gaming audience.
Besides financial support, the staff will have access to the studio for a period of time to say their goodbyes and put together their portfolios. Other Take-Two studios will be on hand to discuss opportunities within the company, and we’ll be hosting a recruiting day where we’ll be giving 3rd party studios and publishers a chance to hold interviews with departing Irrational staff.*
What’s next?
In time we will announce a new endeavor with a new goal: To make narrative-driven games for the core gamer that are highly replayable. To foster the most direct relationship with our fans possible, we will focus exclusively on content delivered digitally.
When I first contemplated what I wanted to do, it became very clear to me that we were going to need a long period of design. Initially, I thought the only way to build this venture was with a classical startup model, a risk I was prepared to take. But when I talked to Take-Two about the idea, they convinced me that there was no better place to pursue this new chapter than within their walls. After all, they’re the ones who believed in and supported BioShock in the first place.
Thanks to Irrational and 2K’s passion in developing the games, and the fans who believe in it, BioShock has generated retail revenues of over a half billion dollars and secured an iconic place in gaming. I’m handing the reins of our creation, the BioShock universe, to 2K so our new venture can focus entirely on replayable narrative. If we’re lucky, we’ll build something half as memorable as BioShock.
Mashable's games reporter Chelsea Stark ranked BioShock Infinite as the third-best game of 2013 (see below), saying its "story and world are like nothing gaming has seen or will see again."
Irrational Games' portfolio also includes SWAT 4, Freedom Force vs. The Third Reich, Tribes: Vengeance, Freedom Force and System Shock 2.
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Read our full review of The Last of Us.
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