Soar through virgin skies and dive into lost oceans as you hunt for the ancient gods of the Inverse, a forsaken realm of inside-out planets. Created by a small team of seven developers and originally funded on Kickstarter, InnerSpace is a bright, colorful exploration flying game with no horizons.
All Reviews:
Mixed (35) - 62% of the 35 user reviews for this game are positive.
Release Date:
Jan 16, 2018

Sign in to add this item to your wishlist, follow it, or mark it as not interested

Buy InnerSpace

Buy InnerSpace - Digital Deluxe

Includes 2 items: InnerSpace, InnerSpace - Soundtrack

Downloadable Content For This Game


Recent updates View all (4)

June 8

InnerSpace Free Content Update!

Salutations explorers!

InnerSpace has been live for almost three months now, and we’ve been listening closely to our players and to critic reviews. As a small team of just seven developers, we are always trying to learn and improve, so we’re super excited to deliver our free content update. This update addresses a lot of critical feedback, offers new airframes for new playstyles, and adds customizations designed by our very own Kickstarter backers!

Without further ado, here are our two new airframes, the Hopper and Glass Piano.

Hopper: A craft for slow contemplation and observation. This airframe stops completely when drifting, allowing players to look around without fear of crashing. It also sports a nifty compass that always points towards the world’s center, which is the closest thing the Inverse has to “North.”

Glass Piano: A fragile variant of the piano airframe. A lot of players came away with the impression that you can’t die in InnerSpace. Technically this isn’t true, and we wanted to give intrepid pilots the chance to make their own legend. This airframe shares most stats with the regular Piano but is much easier to break. This is our way of adding HARD MODE. Good luck!

Full update notes below. And remember, your greatest journey is within!

  • Added unlockable airframe skins! Visit the Archaeologist to unlock new colors for all of your airframes.
  • Added 2 new relics: Hopper Wing (Sunchamber) and Glass Wing (Dawnvessel).
  • Added 2 new planes: Hopper and Glass Piano. Hopper can stop completely when drifting, whereas Glass Piano is a fragile, challenge-mode plane.
  • Woodwind airframe has a much slower brake speed, so learning the game is easier for new players in the tutorial.
  • Zephyr Spark airframe drift/airbrake is slower and has faster turning speeds.

Game-Wide Improvements:
  • Revised Archaeologist dialogue for Sunchamber discussions, especially if you're looking for help or hints.
  • Added an inspector pillar for the statue in Mornsea.
  • Added an inspector pillar for new statues in the Eventide.
  • Respawning rope interactions change color if they’ve been cut before.
  • Added a relic-counter to pause menu.
  • Invert button on start-screen fixed.
  • Various minor bug fixes.

P.S. For those of you interested in a photo-mode, combine the Hopper airframe with the invisible skin to get wide-angle stills!
2 comments Read more

About This Game

Your greatest journey is within.

In the final days of the Inverse, you must help the Archaeologist recover the last remaining memories before they are lost forever. Fly through ancient skies and abandoned oceans to discover the lost history of this fading realm, where entire civilizations have died, yet their gods still wander.

InnerSpace is an exploration flying game set in the Inverse, a world of inside-out planets where gravity pulls outward instead of in. InnerSpace began as a project among college friends and evolved into a successful Kickstarter campaign in 2014. After years of development, PolyKnight is proud to welcome you to the Inverse. Your greatest journey is within.


  • InnerSpace is a game about exploration, about player-driven moments both small and grandiose. Take your time, soar through the skies and dive through the oceans, and the secrets of the Inverse will reveal themselves.

  • Scattered among the ruins are priceless relics, the final messages from the extinct civilizations that once ruled the Inverse.

  • Adapt lost technologies to build new airframes, each with unique abilities to soar above the waters, and below.

  • The Inverse is dying, but you’re not alone. Demigods still roam here, hoarding what power they have left, the keepers of secrets as old as the Inverse. Fly carefully.

  • Featuring an ethereal art style and soothing electronic musical score, InnerSpace delivers a thoughtful, provocative flying experience unlike any other.

A quick note from the developers:

We started PolyKnight Games back in college, when we would meet after class to talk about new challenges in game design. We became fixated on one question in particular: "What would a flying game be like in a universe of inside-out planets?" To answer that question, we decided to put aside our career plans and form our own indie studio.

InnerSpace is not like other flying games. We want to reward exploration, both in terms of storytelling and the mechanics of flight. If you’re expecting a traditional flight sim with aerial combat, this might not be for you. If you like the idea of a plane that transforms into a submarine, then dives inside the belly of an ancient demigod, you're in the right place.

Please contact us on Twitter or the forums if you have any feedback at all, or if you just want to say hello. Thanks so much for checking out InnerSpace. We hope you enjoy the flight.

System Requirements

Mac OS X
SteamOS + Linux
    • Requires a 64-bit processor and operating system
    • OS: Windows 7 or Windows 10
    • Processor: AMD A8-7600 (3.1 Ghz) OR Intel Core i3 4170 (3.7 Ghz)
    • Memory: 8 GB RAM
    • Graphics: Nvidia GPU GeForce GTX 650 / AMD GPU Radeon HD 6850 / Intel Iris Pro 5200
    • DirectX: Version 9.0
    • Storage: 5 GB available space
    • Additional Notes: 1 GB VRAM
    • Requires a 64-bit processor and operating system
    • Requires a 64-bit processor and operating system
    • OS: Mac OS X 10.12 or 10.13
    • Processor: Intel Core i5 (4 Cores) 2.9 GHz
    • Memory: 8 GB RAM
    • Graphics: Nvidia GPU GeForce GT 750M / AMD GPU Radeon HD 6970M / Intel Iris Pro 5200
    • Storage: 5 GB available space
    • Additional Notes: 1 GB VRAM
    • Requires a 64-bit processor and operating system
    • Requires a 64-bit processor and operating system
    • OS: Ubuntu 16.04 / SteamOS
    • Processor: AMD A8-7600 (3.1 GHz) OR Intel Core i3 4170 (3.7 GHz)
    • Memory: 8 GB RAM
    • Graphics: Nvidia GPU GeForce GTX 650 / AMD GPU Radeon R9 290
    • Storage: 5 GB available space
    • Additional Notes: 1 GB VRAM
    • Requires a 64-bit processor and operating system

What Curators Say

32 Curators have reviewed this product. Click here to see them.
Customer reviews
High Volume of Reviews Detected:
Exclude  or  View Only
Review Type

Purchase Type


Date Range
To view reviews within a date range, please click and drag a selection on a graph above or click on a specific bar.

Show graph

Display As:
Review Beta NEW!
When enabled, will sort reviews by new Helpfulness score. Read more about it in the blog post.
Show graph
Hide graph
Review Helpfulness Beta Enabled
There are no more reviews that match the filters set above
Adjust the filters above to see other reviews
Loading reviews...