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Irrational Exuberance: Prologue
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.
View on Steam ↗ Free (US · as of 2026-05-13)What players say
Steam review score and the most-helpful voices, which may include critical ones. Score via Steam as of 2026-09-26.
“Ok at first I thought this game was dumb and the graphics sucked, because all you do is stand in a really small cave with floating rocks in it that will break apart if you hit them. So I quit the game and didn't think any more about it. Then I saw on reddit someone said this…”
— a player, Steam review · 0 hrs played“Brief but amazing, "Prologue" delights in its abstract nature - and defies classification as it is simultaenously not a game yet engages the user at a blissfully intuitive level. It is an experience that really can only be conveyed by trying it, and is sure to delight anyone who…”
— a player, Steam review · 0 hrs played“Beautiful, otherworldly experience that really shows off Vive's potential. Not a game as such, more like a work of art. This should be one of the first things for every Vive owner to download.”
— a player, Steam review · 13 hrs playedLatest official news
Developer announcements via the Steam news API — links go to the original posts. More across all games on the news hub.
Updated with performance fixes!
http://cdn.akamai.steamstatic.com/steamcommunity/public/images/clans/12139979/fb0f20e482207eef4e73834d8f946b386e6fbfcf.png Irrational Exuberance: Prologue has just been updated, at long last. Performa
Updated with performance fixes!
http://cdn.akamai.steamstatic.com/steamcommunity/public/images/clans/12139979/fb0f20e482207eef4e73834d8f946b386e6fbfcf.png Irrational Exuberance: Prologue has just been updated, at long last. Performa
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
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
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Screenshots
Official Steam store screenshots — click any shot to enlarge.
Facts & details
From the Steam store record, snapshot 2026-09-26.
| Genres | Adventure, Casual, Free To Play, Indie |
| Player tags | Casual · Adventure · Free to Play · Indie · VR (SteamSpy community voting) |
| Features | Single-player · Tracked Controller Support · VR Only · VR Support · Family Sharing |
| Languages | English |
| Official site | http://irrationalexuberancevr.com |
Minimum system requirements (PC)
Minimum: Requires a 64-bit processor and operating system 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 VR Support: SteamVR. Room Scale 2m by 2m area required