Captain of Space: Planet Quest
Adventure · Supercent, Inc.
Captain of Space: Planet Quest screenshots
The most distinctive thing about Captain of Space is that it keeps working when you do not. Mining, trading and crew missions carry on while you are away, so the game is built around checking in, collecting what has accumulated and deciding where the next chunk of progress goes. That is the whole appeal, and it shapes everything else about the design.
It is an idle space simulator from Supercent, Inc., free to download, with ads and in-app purchases attached. The game has more than 50,000 installs and a 4.0 average from 1,962 ratings, which is a reasonable signal for a game that arrived in March 2025 and was still being updated in September 2026.
I would point this at players who enjoy management games that reward patience rather than reflexes. If you like the idea of a space company that grows in the background and gives you a handful of decisions each time you open it, the premise here is aimed directly at that habit.
A spaceship, a company and a galaxy to work through
You start as the captain of your own vessel and the game frames that role broadly: you are not just flying a ship, you are running an operation. Asteroids are the raw material, planets are the markets, and the loop between the two is what funds everything else. The solar system works as the opening stage, while the wider galaxy serves as the long-term map.
The developer pitches this as an adventure as much as a simulator, and the framing supports that. Discovering planets brings new challenges and new opportunities rather than just a bigger number, and each world you reach changes what you can do next. How much narrative texture that actually delivers is hard to judge, but the structure is clearly meant to give exploration a purpose beyond scenery.
What I find appealing about the setup is that it gives the idle mechanics a reason to exist. Mining is not just a timer that fills a bar; it feeds a trading network, and the trading network feeds expansion. That is a more interesting frame than a plain clicker, because the resources you accumulate have somewhere to go.
How a session tends to unfold
The core activity described is idle mining. You extract minerals, expand your mining systems and move resources between planets, and the game continues that work while you are offline. That last part matters more than any single feature, because it means a session can start with a meaningful pile of earnings rather than an empty screen.
From there, the game settles into a fairly standard management rhythm. You spend what you have earned on ship upgrades, on crew, and on the wider business, then set the next round of missions running and step away again. Scanners and weapons are named as upgrade paths alongside general technology, which suggests the ship is both a tool for finding things and a tool for surviving what it finds.
Crew management sits alongside this. You recruit skilled members who handle idle missions and improve how the ship performs, so there is a staffing layer on top of the hardware layer. Fleets and trade routes round it out: the developer describes commanding multiple ships, each suited to different planets and missions, and constructing orbital stations to hold strategic ground.
Pirate battles and planet defense are the more active strand. Raiders and rivals threaten peaceful worlds, and you are expected to fight them off rather than simply out-produce them. I would expect that to be the part of the game that asks for your attention rather than your patience, and it gives the weapons upgrades a clear purpose.
Why the loop holds attention
Idle games live or die on whether the next milestone feels close enough to wait for, and this one stacks several of them. A new planet, a better scanner, a stronger hull, a crew member who speeds up missions, a station that anchors a region. Each one is a small, legible goal, and there are enough categories that progress is rarely blocked on a single grind.
The trading layer adds a second kind of satisfaction. Moving resources between planets implies that where you sell matters, which turns simple accumulation into a light logistics puzzle. It is not a deep economic simulation, but it gives you something to think about beyond tapping a collect button.
The company-building angle is the long game. Managing trade routes, fleets and an interplanetary business is the stated end state, and it is the sort of goal that suits a game you return to in short bursts over weeks. Collecting treasures and uncovering secrets across the galaxy are the more incidental rewards layered on top.
The most recent update brought a minor bug fix and new content, which is a modest but useful sign that the game is still being worked on. For a title that launched in early 2025, that matters if you are deciding whether to commit time to a long-running save.
What it costs and what comes with it
Captain of Space is free to download. It contains ads and offers in-app purchases, and nothing more is said about monetization. Nothing explains what purchases cover, so I would treat the free version as the starting point.
The game is rated for Everyone and sits in the Adventure category, which fits the broad, non-graphic presentation. The ad and purchase elements are worth knowing about if a child will be playing.
One practical point in the game's favor is that the idle systems are described as running offline. That is unusual enough to be worth noting for anyone who plays in places without a reliable connection, and it fits the low-attention style the rest of the design encourages.
The verdict on this one
Captain of Space is a free idle simulator with a clear identity: mine, trade, upgrade, expand, repeat, with the timers running whether you are watching or not. The combination of crew, fleet, stations and pirate defense gives it more moving parts than a bare mining clicker, and the trading layer gives those parts a reason to interact.
It is best suited to players who like management games with a long horizon and do not mind ads and in-app purchases in a free title. If you want something that demands constant input or tells a tight story, this may not be for you.
For anyone who enjoys checking in on an empire a couple of times a day and watching it grow, the premise is sound and the install base and rating suggest it has found an audience. I would go in expecting a slow build rather than immediate spectacle, and judge it on whether the loop still feels worth returning to after the first few planets.
The short verdict
A free idle space sim for patient empire builders who do not mind ads and in-app purchases.
What's new in version 6.1.0
- Minor bug fixed. - New contents updated.
App specs
- Version6.1.0
- UpdatedSeptember 28, 2026
- Downloads50K+
- RequiresAndroid 6.0+
- PriceFree
- Age ratingEveryone
Captain of Space: Planet Quest: frequently asked questions
What do you actually do in Captain of Space?
You pilot a ship, extract minerals from asteroids and sell or swap those resources across planets. Earnings go into ship upgrades, crew and expansion, and the developer describes building a company that spans multiple worlds with fleets, trade routes and orbital stations.
Does the game keep running when I am not playing?
Yes. The mining and trading systems are described as continuing while you are offline, so you can return to accumulated resources rather than starting from nothing. That idle behavior is central to how the game is designed.
Is Captain of Space free, and does it have ads or purchases?
It is free to download. It contains ads and offers in-app purchases. The free download is the baseline to expect.
Is there combat, or is it only mining and trading?
There is combat. The game mixes pirate fights with defending peaceful planets from raiders and rivals. Weapons are listed among the ship upgrade paths, alongside technology and scanners.
What is in the most recent update?
A minor bug fix and new content arrived in the most recent update. The game launched in March 2025 and was updated again in September 2026, so it has received attention beyond its initial release.
Pros
- Idle mining continues while you are offline
- Trading between planets adds a logistics layer
- Crew, fleet and station management in one loop
- Pirate battles give the weapons upgrades purpose
- Free to download with a broad Everyone rating
Cons
- Contains ads
- Offers in-app purchases
- Progress depends on idle waiting
- Combat is one strand among many systems
Download Captain of Space: Planet Quest
by Supercent, Inc.
Free · In-app purchases · Contains ads · Official store listings