Space Travel Idle
Early access since Sep 2020
If you ever dreamed of exploring space at a relaxed pace, here's a journey designed for you.
62% positive · 540 reviews
Not yet
In early access, content planned but development status unclear
Low confidence
Content Planned
Development Uncertain
Not yet
In early access, content planned but development status unclear
Low confidence
Content Planned
Development Uncertain
Where to get it
Free on Steam
Evaluation
Space Travel Idle is a free-to-play idle game that has been in Early Access since September 22, 2020. The game received active development through 2021, including two major content updates: Version 0.2.1.29 on January 1, 2021 (adding Mercury and the Sun, new cards, and offline battle progress) and Version 0.3.5.32 on August 14, 2021 (adding Mars through Pluto and a prestige system). After that, the developers went quiet for over a year.
On November 18, 2022, the developers published a candid post explaining they had become stuck on serious technical issues around October 2021, struggled to communicate this to the community, and ultimately stepped away to focus on their careers. In that same post, they announced their intention to rebuild the game from scratch, promising a "redo" targeting late 2023 that would include all existing content plus full solar system coverage and a more stable codebase.
That late 2023 target has passed, and as of today (June 24, 2026), there have been no further posts, patches, or updates of any kind from the developers since November 18, 2022 — a silence of over three and a half years. The game remains listed on Steam in its current Early Access state, but the promised redo has not materialized and the developers have not communicated any change in plans. The announced content is undelivered, and the extended silence following a missed self-imposed deadline makes the future of this project genuinely uncertain.
Evidence
Developers acknowledged being stuck since October 2021, announced a full game redo targeting late 2023, promising all planets through Pluto and a more stable codebase. This is the last official communication from the developers.
Major update Version 0.3.5.32 shipped, adding Mars through Pluto and a prestige system — the last content update ever released.
Media
Details
Developer
Publisher
Spaceive
Achievements
—
Platform
Windows, macOS
Controller
—
Steam Deck
Playable
Players
Single-player
About this game
If you ever dreamed of exploring space at a relaxed pace, here's a journey designed for you.
Starting from Planet Earth, travel to all those moons, planets, and stars that you can think of. Come up with strategies to maximize your energy and resource gains, conduct research to enhance your improve your spaceship, and build infrastructures all over the Universe. You are also going to fight evil aliens from outer space in a relaxing card-battle.
While the above may sound complicated, in this game, they can all be achieved with a few clicks... It's an Idle Game!
Features:
Gaining Energy/Resources
Intergalactic travel
Science
Battle
What else can you expect from the game?
Good Luck, and have a pleasant flight!
PS:
This game was initially developed by Ayatsuji_san alone as a passion project during the difficult Covid-19 year of 2020, including programming, design, and art.
His good friend Berk joined in later on to make faster game completion possible. Additionally, a number of other people have supported the game with artwork and other fixes.
We hope that you love the game as much as we loved making it.
Starting from Planet Earth, travel to all those moons, planets, and stars that you can think of. Come up with strategies to maximize your energy and resource gains, conduct research to enhance your improve your spaceship, and build infrastructures all over the Universe. You are also going to fight evil aliens from outer space in a relaxing card-battle.
While the above may sound complicated, in this game, they can all be achieved with a few clicks... It's an Idle Game!
Features:
Gaining Energy/Resources
- Discover various ways of retrieving the energy or resources on every celestial body you visit.
- Think of strategies to maximize efficiency in reaching your goals.
- Improve your scientific prowess to avoid a loss in resource gain efficiency deterioration at some destinations.
Intergalactic travel
- Power up your spaceship engine, and set off.
- Bring necessary stuff with you in your spaceship to develop the new star, but don't bring too much. Remember that more weight will require more energy to fire up your engines.
- Make use of all scientifically possible and impossible ways to reduce your travel time, including weight reduction, trajectory optimization and space folding.
Science
- Engage in research on your spaceship and various galactic laboratories to enhance your abilities and unlock more content
- Build space stations on every place you visit! Expand and utilize your knowledge as you make space your own.
Battle
- Face various alien enemies during your journey through space. Fight them in classic card battle fashion.
- Enemy aliens act unpredictably. As you progress through the game, battles will become increasingly difficult and will require creative solutions. Instead of fighting manually, you can…
- …Automate battle strategies and fighting behavior with your own battle AI. No worries, it will be super easy to set up.
- Get drops from the defeated enemies to improve your battle abilities and improve all other aspects of the game as well.
- Legendary Boss Fights. Unlock great drops whenever you beat them!
What else can you expect from the game?
- Regular updates to ensure there's always new content!
- You can enjoy nearly the entire game without needing to pay at all. Even the in-game premium currency can be obtained regularly without investing money.
- We will carefully watch feedback on our various channels (steam, discord, etc.). We intend to listen to the community and keep making this game better for everyone.
Good Luck, and have a pleasant flight!
PS:
This game was initially developed by Ayatsuji_san alone as a passion project during the difficult Covid-19 year of 2020, including programming, design, and art.
His good friend Berk joined in later on to make faster game completion possible. Additionally, a number of other people have supported the game with artwork and other fixes.
We hope that you love the game as much as we loved making it.
Are these done yet?
Last evaluated Jun 24, 2026
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