Space Travel Idle

Space Travel Idle

Ayatsuji_San · September 22, 2020 · Card Battler, Programming, Idler, Casual, Dungeon Crawler

Space Travel Idle is free to play — no purchase needed. We track it so you know if that ever changes.

PC
Mixed63% · 539 📉 Recent reviews down 48%18playing now
This game is free to play. Get it on Steam →

Screenshots

Space Travel Idle price

Space Travel Idle is free to play — there is no purchase price, on Steam or anywhere else we track. We keep watching it, so if it ever stops being free the price history on this page will show when that happened and what it changed to.

About Space Travel Idle

✦ AI summary

Space Travel Idle is an idle game where you explore the universe gathering resources, researching upgrades, and battling aliens across planets and stars with minimal effort required. Optimize your energy gains through strategic research and space station building while automating card-based combat with custom battle AI to face increasingly unpredictable enemies and legendary bosses.

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
  • 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.

Space Travel Idle — game info

Platforms
Windows, macOS
Steam Deck
Playable
Player modes
Single-player
PC Game Pass
Not included
More games like this:Mac games

What Steam players say

Recent verbatim reviews from Steam — separate from playze.io community reviews below.

✦ AI summary

Space Travel Idle is an engaging idle game with a clean UI and satisfying progression system of unlocking ships and upgrades, though players praise its lack of aggressive monetization. The main complaints center on abandoned development with the game ending abruptly, slow late-game progression without watching ads, lack of offline progress, and lengthy wait times between activities. Players interested in incremental games may still find the journey worthwhile despite its unfinished state, but should manage expectations given the apparent lack of developer support.

Not recommended Feb 27, 2026
Probably a bitcoin miner
Recommended Nov 17, 2025
Игра 'Space Travel Idle' - это довольно увлекательный тайм-киллер с приятной графикой и достаточно простым, но затягивающим геймплеем. Начинаешь с малого - отправляешь небольшие ракеты, собираешь ресурсы и постепенно модернизируешь свой флот, чтобы летать все дальше и дальше в космос. Система улучшений продумана, всегда есть к чему стремиться, будь то новые корабли, более эффективные добытчики или ускорение производства. Что особенно понравилось, так это отсутствие навязчивой рекламы, которая часто портит впечатление от подобных игр. Можно вполне комфортно играть, не вкладывая реальные деньги. Однако, стоит отметить, что в поздних этапах прогресс замедляется, и без просмотра рекламы для временного усиления добычи, продвижение становится ощутимо медленнее. В целом, это отличная игра для тех, кто ищет простое и расслабляющее развлечение на несколько минут в день. Не ждите от нее глубокого сюжета или сложной механики, но в качестве фоновой игры для "убивания времени" - это вполне достойный вариант. Ставлю четыре звезды!
Recommended Sep 3, 2025
This game has potencial to be really good idle game but i need offline progress i dont have that much time to stay in this game. and second adventure to venus take around 6-24h to fly without offline just sitting and waiting that's sad i know its still early access thats why i hope it gets more updates and some more multiplayers would be nice and tutorial doesnt work sometimes its nothing written u just need to skip it. so after playing for few days and not proggresing i found out turial said to use my fuel only 5% so all my production was less then 5% for few days kinda sad
Not recommended Sep 3, 2025
[h1]#tinygamereviews[/h1] [code] neat ui-based idler with 5X-esque elements. too bad it was abandoned years ago.[/code] [list] [*][b][u]Overall Score[/u][/b]: 1/5 [/list] [hr][/hr] [h1][b]Curator: [url=https://store.steampowered.com/curator/42137521/]Nostalginauts[/url][/b][/h1]
Recommended Jul 31, 2025
If you like incremental games, where new mechanics get unlocked and decision-making is important, you will love this game. It's by far one of the better ones, and with very original gameplay. It's a bit of a slow burn, some steps take a while so this is something you'd play in the background. The game is also unfinished and ends abruptly, but there's more here than in most other idle games, and the journey up to that point worthwhile (technically, they could have just said Game Over instead of ending next to an unimplemented planet, and it would have been fine!).
Not recommended Jul 12, 2025
Sadly, as said in the discord this game is most probably in an irreparable state and will have to be remade. But... I don't think I can trust the devs anymore after years of silence, and I don't think that this game will ever get remade. So if you plan on playing this game, either stop or just don't get too invested like me and many others did, it hurts seeing it never be updated.

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