Idle Space Dynasty vs Astro Builder
Price, ratings, monetisation and update history for both games, side by side — with what reviewers say about each.
Idle Space Dynasty
Build factories on planets, establish trade routes, and discover new solar systems to become the first trillionaire. Earn resources even while offline, optimize your empire, and conquer deep space.
- Optimize factories for profit
- Optimize spaceships for transport
- Idle cash generation
- Discover solar systems and planets
- Destroy asteroids for resources
- Offline play
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Deep space is yours - conquer it! You are a pioneer in space exploration. Build factories on unexplored planets and establish trade routes with your spaceships to gather intergalactic resources. Discover far away solar systems in unknown galaxies. And what for? To be the first trillionaire in human history! Optimize your investments, to get deeper and deeper into space! Unbelievable treasures and wealth await you! FEATURES: • Optimize your factories for higher profits • Optimize your space ships for transport • Idle cash: Earn even while you are away. Your factories don't sleep! • Discover up to 25 solar systems containing countless planets! • Destroy asteroids you come across to earn extra resources Every visit makes your dynasty stronger - the idle way! • WITHOUT INTERNET!! • Ideal for traveling • Coffee breaks, Waiting-Lines, Everywhere! Ideas, opinions or problems? Please write to us! We are happy to hear from you: info@spacedynasty.com Space Dynasty on Facebook: https://www.facebook.com/spacedynasty Space Dynasty on Instagram: https://www.instagram.com/playspacedynasty/ Your Space Dynasty team
Astro Builder
Build a sprawling space station in orbit with this idle construction game. Start with basic components and expand your facility by unlocking new equipment and generating resources. Discover and develop new areas as your station grows.
- Idle space station construction
- Resource management
- Unlock new equipment
- Expand and develop areas
- Space elevator material transport
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Welcome to Astro Builder, the ultimate casual idle game where you construct a space station in near-Earth orbit. Begin with a simple setup—a connecting ground track and a small platform. Material is transported to the platform via a space elevator and piled on the ground. Utilize the resources to expand and improve the platform, unlocking new equipment and producing valuable resources. Each construction phase reveals a new area, waiting to be developed and unlocked. Can you build the ultimate space station and conquer the cosmos?
Screenshots
Verdict
Idle Space Dynasty and Astro Builder both sit at 4.6 stars, but that hides the real split: 75% of Idle Space Dynasty's written reviews are positive against 35% of Astro Builder's. Idle Space Dynasty also leads on ads (none vs shown) and update cadence (every 6 days vs every 11 months). Astro Builder's advantage is ratings volume (3.4K vs 56). On price, rating, in-app purchases and monetization model there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Both are free to download. Idle Space Dynasty sells 6 one-off in-app purchases and Astro Builder sells 5 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.
On the App Store both sit at effectively the same score — 4.6 for Idle Space Dynasty against 4.7 for Astro Builder. That said, the two scores are not equally well evidenced: Astro Builder has 3.4K ratings behind it against 56, so its average is the more settled of the two. Written reviews are what separate them: 75% of Idle Space Dynasty's written reviews are positive against 35% of Astro Builder's.
Idle Space Dynasty ships an update every 6 days, Astro Builder every 11 months. The most recent releases landed on November 2, 2026 and November 4, 2026 respectively.
| Parameter | Idle Space Dynasty | Astro Builder |
|---|---|---|
| Price | Free | Free |
| Rating | 4.6 (56 ratings) | 4.7 (3.4K ratings) — better |
| Positive reviews | 75.0% of reviews — better | 34.9% of reviews |
| Number of ratings | 56 | 3.4K — better |
| Update frequency | Every 6 days — better | Every 11 months |
| Ads | No — better | Yes |
| In-app purchases | Yes | Yes |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 9.0 — better | 15.0 |
| Further details — not scored | ||
| Size | 245 MB | 251 MB |
| Age rating | 4+ | 4+ |
| Developer | axonic | Solid Games |
Customer experience
Idle Space Dynasty
Astro Builder
Bugs and requests
Idle Space Dynasty
Not enough reviews yet to summarise bugs or requests.
Astro Builder
Reported bugs
3 issues- Builders getting stuck or ignoring resource needs
- Inconsistent behavior when collecting from processors
- Permanent worker upgrades not functioning properly
Requested features
4 requests- Ability to continue progress offline
- More varied level designs and challenges
- Autonomous builder behavior
- Background progress while app is closed
In-app purchases
Idle Space Dynasty
- 300 SpaceCash$1.99
- 800 SpaceCash$3.99
- Add 1700 SpaceCash$8.99
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- 3600 SpaceCash$17.99
- 9500 SpaceCash$44.99
- 20000 SpaceCash$89.99
Astro Builder
- AD TICKETS 10$0.99
- AD TICKETS 25$1.99
- AD TICKETS 60$3.99
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- Ad-free 7 day$4.99
- Permanent ad-free!$9.99
Questions
Is Idle Space Dynasty free?
Is Astro Builder free?
Which has better reviews, Idle Space Dynasty or Astro Builder?
Do Idle Space Dynasty or Astro Builder have ads?
Which is updated more often, Idle Space Dynasty or Astro Builder?
Other comparisons
