This game is meant to be finished in a single sitting. CAT Interstellar is a short story-driven science fiction game about humanity's attempt to terraform Mars. Pilot a DOG V4 unit on an alien world and uncover the past of a seemingly barren planet.
User reviews:
Very Positive (22 reviews) - 86% of the 22 user reviews in the last 30 days are positive.
Mostly Positive (346 reviews) - 72% of the 346 user reviews for this game are positive.
Release Date: Sep 8, 2017

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Early Access Game

Get instant access and start playing; get involved with this game as it develops.

Note: This Early Access game is not complete and may or may not change further. If you are not excited to play this game in its current state, then you should wait to see if the game progresses further in development. Learn more

What the developers have to say:

Why Early Access?

“Warning: This is a short story with ~1 hour of gameplay in its current state.

While CAT Interstellar is a story driven game at heart we want to avoid the whole "Walking Simulator" by adding intuitive player controls as well as a fully dynamic and interactive environment. We chose to release the game to early access so that we could develop openly with the community and get unbiased feedback. We've reached a point were we are confident the game will be stable and fun to play.”

Approximately how long will this game be in Early Access?

“Currently we are planning to have the game completed by September 8, 2017.”

How is the full version planned to differ from the Early Access version?

“The main additions to the game will be the amount of polish to the environments as well as the amount of story content and map sizes. We are aiming for a gameplay time of an hour.”

What is the current state of the Early Access version?

“The games current state includes a rough draft of the entire story (~1 hour of gameplay). The main goal of this release to get feed back on the player controls and game mechanics.”

Will the game be priced differently during and after Early Access?

“We plan to raise the price at release to $4.99 USD.”

How are you planning on involving the Community in your development process?

“We want to be as open and honest with the community throughout development to get unbiased feedback. We plan on using the Steam Community hub as our main hub for communication and hope to be able to translate that into updates every month.”
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Recent updates View all (27)

August 11

Update 4.0.1 (Story)

TL;DR this is the full story of CAT Interstellar with the subtitle system re-vamped. This build is worth another play-through from beginning to end.

  • Cave scene ending with all triggers and key events.
  • Signals full sequence of events.
  • Credits completed.
  • Added additional dialog sequences to “The Base” and “Credits”.
  • Added a second Android type.
  • Adjusted mechanics of the Cat character to make the movement a little smoother.
  • Speech Bubbles (Subtitles) are now enabled by default.
Bug fixes
  • Missing rocks allowed the player to get behind the wind tunnel.
  • Numerous subtitle fixes.
Known Issues:
  • “Signals” start screen cut off the last ‘L’.
  • Music at the end of “The Caves” is buggy.
  • Key rebinding is still down.
Project Files
    The only thing holding this up is the audio files. I’m trying to commission some audio effects for release under a creative commons license. Once that’s complete, I’ll push the first project version which primarily consists of all the code, animations, texture, and shaders for DOG.
To Do
  • Improve the 2D graphics for in-game consoles.
  • Re-record key dialog.
  • Add more ambient sounds, effects, and props.
  • I’ve moved the release date back (again) to September 8th. I kind of screwed myself by doing a sale the last 2 weeks. I’ll go into a lot more detail about the business side of things but first I need to read through the SteamWorks documentation again and verify all the information I’m allowed to release. Having information on the business side of game development will be as helpful as the project files.
The goal of this project is to tell a science fiction story that can be completed in a single sitting.

I’m fully aware that if I was smarter I would be making mad cash with a multiplayer survivor game. I just personally don't have the free time anymore to level a character up or win an argument on the internet. That’s the audience I’ve been going after since day one. I’ve tried to make that as clear as possible on the store page but if you have any idea how to convey that better please let me know.

Maybe we'll try to get rich next time.


A few months ago we donated some of the game profit in the hopes of helping a few foster dogs and I thought it was a good time to give you an update:

Bojangles and Roxy both got adopted by great families and are F'ing loving life.

Sis is still at Tails (The foster agency) but is gaining confidence everyday and making huge progress. She's made a lot of dog friends and is relatively comfortable with humans she knows.

Slim Jim is in a foster home... but it's looking more like a forever home because they really love him.

It's unfortunate you would find out about this from a crummy game announcement on Steam, but Foggy Nelson took a turn for the worse and passed away from some of the lingering issues he had when he was found.

I wish I only had good news for you but that's just not how it works. Regardless, even though we’re just an obscure indie game with a knack for delays we’re going to try to help in a much bigger way. I’ll have more details on this in the future.

As always, Thank you for all the support you given. We’re almost there.

Subtitle error for android 42 and the missing 'L' in chapter 5 starting screen.
18 comments Read more

July 1

Update 3.0.3 (Surface)

This update includes additional dialog, a remapped version of “The Surface”, numerous bug fixes, and Ansel support. This update probably doesn't warrant a fresh play-through if you've already been through once.

First off, I want to welcome the massive influx of players during the Steam Summer sale. Thank you for giving this little game a shot and hopefully you stick around for the ending. Your feedback is truly appreciated and encouraged. I’ll try to maintain a weekly update until our launch date.

The surface level has been remapped to be a little more efficient in its layout. The mine is now on the far side (since it is the final destination) and the entire map has been opened up. I was also able to cut out huge segments of the map that were rarely visited (like behind the base). This should drastically reduce the load time for the largest level in the game.

I’ve also added guide poles to help make it a little more intuitive as to where to go. Please try not to run into them since the androids spent a lot of time installing them.

Additional Content
  • Added dialog to the “Main-Menu” level as well to “The Base” level.
  • Reworked the “Main-Menu” with layout and an additional audio cue to make it more intuitive.
  • Added an additional conversation to The Base as well as numerous environmental ambiences to add a little more life to the level.
  • Fixed the issue with players not being awarded the “chapter 0 “ achievement (Sorry).
  • Fixed a bug causing the locker door to freeze up and not allow the player or the android through. This effectively blocked the “Chazz” achievement (Thanks LigH).
  • Fixed numerous collision issues making DOG’s engines freak out.
  • Adjusted numerous graphical errors such as over clipping decals and overly reflective volumes (Thanks XBL Laberbacke).
  • Lastly, I finally tracked down one of the most elusive bugs that occasionally made it difficult to “drop” objects. This one was unique because it was so hard to reliably reproduce. The ultimate cause of the bug was how DOG’s gravlift ray traces to objects. If the ray trace is beyond a certain distance (10-meters) it will disappear. This inadvertently nulled out the “drop” command if you were holding an object AND your line of sight was beyond the 10-meter threshold.

Known Issues
  • Key rebinding. This bug is caused by how the action manager is passed around. I have a very good idea how to fix it but didn’t have time before this update.
  • A few of the subtitles got jacked. I plan on streamlining the subtitle system to go in line with audio dialog instead of a bunch of beeps and boops. I’m sorry I’ve made you suffer for this long.

Ansel Support
We’ve supported Ansel for a while now but just recently got whitelisted by Nvidia so it should work for everyone (with and Nvidia card). Pressing Alt+F2 in game will bring up the Ansel HUD and let you get some amazing screenshots. This system is very simple and straight forward but still gives you a lot of control.

Future Updates
You’ll notice that the cave collapse scene is cut a little bit shorter. This scene is about 90% complete but I don’t want to add it in until I have fixed all the nitpick timing issues.

The dialog for Signals is also almost completely recorded and edited. There are a few additional animations and events that need to be added to pull the whole thing together but we are making very good progress on it.

The next set of updates should be focused almost exclusively on content.

Thank you again for all the support, feedback, and troubleshooting. I could not have done this without you.
8 comments Read more
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About This Game

Warning: This is a short story ~ 1 hour long that is meant to be played in a single sitting.

Play as a DOG-VI drone, a newly activated maintenance bot, who is assisting in the terraforming effort on Mars. After a predictable yet unfortunate accident DOG finds himself uncovering the past of a seemingly barren planet.


We're trying to bring the "science" back to science fiction. We also wanted to explore a scenario humanity might really encounter on the first planet we aggressively try to terraform.

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System Requirements

SteamOS + Linux
    • OS: Windows 7, 8.1, 10 (64-bit)
    • Processor: 2 GHz Quad-Core
    • Memory: 2 GB RAM
    • Graphics: Nvidia GTX 750
    • DirectX: Version 11
    • Storage: 4 GB available space
    • OS: Windows 7, 8.1, 10 (64-bit)
    • Processor: 2 GHz Quad-Core
    • Memory: 2 GB RAM
    • Graphics: Nividia GTX 970
    • DirectX: Version 11
    • Storage: 4 GB available space
    • Additional Notes: Recommended for 60 FPS
    • OS: Ubuntu 16.10
    • Processor: 2 GHz Quad-Core
    • Memory: 2 GB RAM
    • Graphics: Nvidia GTX 750
    • Storage: 7 GB available space
    • OS: Ubuntu 16.10
    • Processor: 2 GHz Quad-Core
    • Memory: 2 GB RAM
    • Graphics: Nvidia GTX 970
    • Storage: 7 GB available space
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Very Positive (22 reviews)
Mostly Positive (346 reviews)
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