Compare CAT Interstellar prices across 50+ stores and find the best deal. Developed by Ionized Games. Published by Ionized Games. Released on 10/6/2017. Available on PC, Linux. Genres: Action, Adventure, Indie, Simulation.

A one-hour Mars terraforming walk-through with genuinely crisp visuals and a Heinlein-flavored sci-fi premise that outruns its own runtime. Worth it at the sub-five-dollar tier if the concept hooks you.

I went into CAT Interstellar expecting a rough solo-dev experiment and came out mildly impressed by the ambition, moderately frustrated by the execution. The premise alone is worth noting: you control a DOG-VI maintenance drone sent underground on a terraforming Mars to find missing androids, in a world loosely inspired by Robert Heinlein's themes of machine consciousness and colony-era politics. That is a genuinely interesting sci-fi setup. The problem is what Ionized Games does with it in the time it has. The core loop is light third-person exploration across six chapters. As DOG-VI you hover and boost across the Martian surface, drop into cave systems, flip switches, talk to NPC androids, and pick up optional side tasks that add thin context to the world. There is a double-jump with forgiving forgiveness margins, a chapter-select so you can revisit sections without replaying the whole thing, and no manual save requirement because the game is short enough that autosave covers it. Movement feels smooth on keyboard-and-mouse and the Unreal Engine 4 visuals are genuinely punching above what you would expect from a micro-studio first release. Environments are large for the runtime, and the Martian surface in particular has the kind of dusty, quiet atmosphere that sells the setting. The game is built for a single sitting: most players finish it in under ninety minutes, some closer to an hour. Where the cracks show is in story payoff and polish. The narrative builds toward something interesting, then the ending arrives before the climax has a chance to breathe. Several reviewers flagged the same thing: the final moments of the game raise the tension and then cut to credits with important threads unresolved and questions left hanging without enough context to make the ambiguity feel intentional. The Heinlein inspiration is visible in the android-freedom framing and hard science leanings, but the game never digs far enough into those ideas to satisfy someone who picked it up because of that connection. Side quests exist but feel padded rather than enriching. On the technical side, multi-monitor setups have historically caused input mapping bugs, and the Linux version has had stability issues for some players across different kernel versions, though the game itself does not crash during play once it launches. Who is this actually for? Players who want a compact, atmospheric sci-fi short story delivered through light exploration and do not need mechanical depth will find something worthwhile here. It is the kind of game that works better as a palette cleanser between longer titles than as a main event. If you have read Heinlein and want to see a small team attempt to translate that sensibility into an interactive form, there is enough here to justify the curiosity. Just calibrate expectations: this is a sketch, not a finished novel. The follow-up, CAT Interstellar: Recast, exists and sits at higher user approval ratings, so if the original hooks you there is somewhere to go next. Diego, Scout Team

CAT Interstellar
ActionAdventureIndieSimulation

CAT Interstellar

Oct 6, 2017Ionized Games
GamerScout Says

A one-hour Mars terraforming walk-through with genuinely crisp visuals and a Heinlein-flavored sci-fi premise that outruns its own runtime. Worth it at the sub-five-dollar tier if the concept hooks you.

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Screenshots & Media

Screenshot

About CAT Interstellar

I went into CAT Interstellar expecting a rough solo-dev experiment and came out mildly impressed by the ambition, moderately frustrated by the execution. The premise alone is worth noting: you control a DOG-VI maintenance drone sent underground on a terraforming Mars to find missing androids, in a world loosely inspired by Robert Heinlein's themes of machine consciousness and colony-era politics. That is a genuinely interesting sci-fi setup. The problem is what Ionized Games does with it in the time it has. The core loop is light third-person exploration across six chapters. As DOG-VI you hover and boost across the Martian surface, drop into cave systems, flip switches, talk to NPC androids, and pick up optional side tasks that add thin context to the world. There is a double-jump with forgiving forgiveness margins, a chapter-select so you can revisit sections without replaying the whole thing, and no manual save requirement because the game is short enough that autosave covers it. Movement feels smooth on keyboard-and-mouse and the Unreal Engine 4 visuals are genuinely punching above what you would expect from a micro-studio first release. Environments are large for the runtime, and the Martian surface in particular has the kind of dusty, quiet atmosphere that sells the setting. The game is built for a single sitting: most players finish it in under ninety minutes, some closer to an hour. Where the cracks show is in story payoff and polish. The narrative builds toward something interesting, then the ending arrives before the climax has a chance to breathe. Several reviewers flagged the same thing: the final moments of the game raise the tension and then cut to credits with important threads unresolved and questions left hanging without enough context to make the ambiguity feel intentional. The Heinlein inspiration is visible in the android-freedom framing and hard science leanings, but the game never digs far enough into those ideas to satisfy someone who picked it up because of that connection. Side quests exist but feel padded rather than enriching. On the technical side, multi-monitor setups have historically caused input mapping bugs, and the Linux version has had stability issues for some players across different kernel versions, though the game itself does not crash during play once it launches. Who is this actually for? Players who want a compact, atmospheric sci-fi short story delivered through light exploration and do not need mechanical depth will find something worthwhile here. It is the kind of game that works better as a palette cleanser between longer titles than as a main event. If you have read Heinlein and want to see a small team attempt to translate that sensibility into an interactive form, there is enough here to justify the curiosity. Just calibrate expectations: this is a sketch, not a finished novel. The follow-up, CAT Interstellar: Recast, exists and sits at higher user approval ratings, so if the original hooks you there is somewhere to go next. Diego, Scout Team

Tags

singleplayerachievementscontroller-supporttrading-cardstier:sub-5Walking Sim AdjacentHard Sci-FiShort Story FormatAndroid ProtagonistChapter SelectMars SettingTerraforming ThemeSolo Dev

Steam Deck & Linux

Steam Deck Playable

Valve rates this game Steam Deck Playable.

System Requirements

Minimum

OS
Windows 7, 8.1, 10 (64-bit)
Memory
2 GB RAM
DirectX
Version 11
Storage
5 GB available space
Graphics
Nvidia GTX 750
Processor
2 GHz Quad-Core

Recommended

OS
Windows 7, 8.1, 10 (64-bit)
Memory
2 GB RAM
DirectX
Version 11
Storage
5 GB available space
Graphics
Nividia GTX 970
Processor
2 GHz Quad-Core
Additional Notes
Recommended for 60 FPS

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Game Info

Developer
Ionized Games
Publisher
Ionized Games
Release Date
Oct 6, 2017

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Price History

2026-06-100.44(lowest)

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How much does CAT Interstellar cost?

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What platforms is CAT Interstellar available on?

CAT Interstellar is available on PC, Linux.

When was CAT Interstellar released?

CAT Interstellar was released on 6 October 2017.

Who developed CAT Interstellar?

CAT Interstellar was developed by Ionized Games.