Awaken on an asteroid in deep space, underneath comets and giant stars. Designed for HTC Vive, Prologue introduces the critically-acclaimed world of Irrational Exuberance—a fever dream of interstellar interactions. Take the first step on a journey of risk, wonder and discovery.
All Reviews:
Very Positive (303) - 87% of the 303 user reviews for this game are positive.
Release Date:
Apr 5, 2016

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Notice: Requires a virtual reality headset. See the VR Support section for more info.

Play Irrational Exuberance: Prologue

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April 13

One year after Prologue

Hello World!

Last week marked the one-year anniversary of a pivotal moment in my life. The HTC Vive was released and I released Irrational Exuberance: Prologue-- the first significant project under my direction.

Much of Irrational Exuberance was built myself, but it wouldn’t have been possible without my friends and colleagues, especially towards launch. It's a kind of insanity to launch anything that seeks to do something new. Solo and small teams especially need support to pull it off. I want to give my deepest thanks to everyone who has supported me and this project.

Launch was the culmination of many years, beginning with the Oculus Rift DK1 in 2013. I built a self-funded 15-minute prototype of Irrational Exuberance over 6 months, where I discovered how cool space, darkness, and thoughtful atmosphere are in VR. I scrapped almost all of the moment-to-moment design after I saw the prototype that would become the HTC Vive, thanks to Valve, in early 2014. It changed everything. I questioned everything as much as I could. Later that year I worked with WEVR on TheBlu’s whale encounter. I continued to invest in Irrational, and I’m thankful that WEVR jumped in to help fund wrapping up Prologue. We were planning a late 2015 launch but everything was pushed back. I reassessed, polished more (obsessed) for the April 2016 launch.

With excitement and anxiety, I released Prologue into the wild on April 5th, 2016. I feared I wouldn’t connect to an audience and that it wouldn’t be understood. I also worried that it wasn’t enough to show where the larger experience will go, and that this kind of “statement” about what VR could be (and what I want from it) wasn’t strong enough. The response has been overwhelming, and although I do think Prologue’s “statement” could be much stronger, this glimpse of a world I want to be in, that I want to exist, resonated-- in some cases deeply so.

So what of the last year? I spent time traveling to festivals all over the world thanks to the reception of Prologue, from Bogota, Colombia to Melbourne, Australia, from Toronto to Park City, Utah. Not to mention lots of opportunities to show it around LA. It has been a huge honor and a bit surreal to realize it’s shown at over 20 festivals and events on 5 continents. I’ve also been looking for partners to help fund the full two hour experience and continue to do so. I’ve picked up some projects to exercise different design muscles and help pay the bills. All the while, Irrational Exuberance has continued to evolve and develop in my free time, along with the help of collaborators. I can’t wait to share more!

In the near term, I’ll be releasing an update to Prologue to resolve performance problems that have developed in the last few months due to changes in the underlying technology stack. Remarkably, it ran great without any updates for almost 9 months (a quick fix for the problem is to disable reprojection, both asynchronous and interleaved, in the Steam settings). The coming update will also have some minor features and tech upgrades.

I want to thank all our fans and those who have supported Irrational Exuberance. This is a project I care deeply about and is still very much alive. If you’d like to continue to support the project, the best thing you can do is to make that support visible-- add Irrational Exuberance to your wishlist on Steam and follow us on your preferred social mediums. You can also subscribe to news and sponsor the project directly via

I look forward to sharing this journey with you and discussing what VR, as a transformational medium, can be.

Ben Vance
Founder, Buffalo Vision

ps. Thank you to Wevr, Kaleidoscope, Valve, Oculus, Glitch City, Sundance, TIFF, IndieCade, and especially to my fellow collaborators.
9 comments Read more


“’re left with a transcendent piece of otherworldly beauty. It’s nothing like reality, and that’s wonderful.”
The Verge

“Designed around users' natural curiosity, the project allows people to pursue their own inclinations instead of waiting around for instructions, resulting in a truly immersive experience and a sense of creation and discovery.”

About This Game

Irrational Exuberance is an experiment to probe the possibilities of full room-scale VR and the HTC Vive, unfolding organically as you discover and engage with deep space phenomena. Prologue is the first taste of the galactic fantasy, delivering you to a lonely asteroid in deep space, underneath comets and giant stars. Irrational Exuberance has been an audience favorite at Sundance and the Kaleidoscope tour and praised as a defining VR experience by the media for its use of space, sense and setting.

The full release, scheduled for late-2016, will feature dramatic interactions, deeply-immersive moments, and impossible vistas.

  • UNCOMPROMISING DESIGN: Exclusively designed for room-scale VR interaction, Irrational Exuberance is a non-violent, organic experience that offers cinematic moments of space, solace and spectacle.
  • AMPLIFIED SENSES: A highly tuned, evocative spatial audioscape takes audiences to the surreal depths of space, from crumbling meteorites to chiming ephemera to the distant hum of stars.
  • HYPER PRESENT REALITY: Beautiful worlds, mysterious sensations, and nuanced interaction weave together to create a heightened sense and awareness of this alternate reality.
  • COMPREHENSIVE PREVIEW: A short, but impactful experience that foretells the events of the full Irrational Exuberance release.

System Requirements

    • OS: Windows 7 SP1 or newer
    • Processor: Intel® i5-4590 / AMD FX 8350 equivalent or greater
    • Memory: 4 GB RAM
    • Graphics: NVIDIA GeForce® GTX 970 / AMD Radeon™ R9 290 equivalent or greater
    • Storage: 300 MB available space
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