Space Colonizers - the Sandbox

Contains adsIn-app purchases
2.71k reviews
Content rating
PEGI 3
100k+
Downloads
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About this game

Travelling and exploring in the vast universe, your spaceship approaches a new galaxy... All planets are destroyed here and aliens are all homeless and helpless. What happened?! You really want to do something for the aliens. You have landed and made short stays on many planets. Now you decide to stay here to build planets for the aliens!

This is a simulation and strategy game with the theme of space construction. Your spaceship arrives in a galaxy, but all planets here are destroyed because of an explosion. Your main mission is to re-construct home for the aliens on the ruins/cores. To build planets, you need to collect matters, unlock environments and seek microbiology. The more resources you collect and level up, the more planets will be constructed. There is no doubt that the aliens will help you to build the planets together. You can also accelerate the speed of construction with the help of space station. Do not forget to explore with a spaceship to get more fuels for the space station!

Game Features:
* Idle and easy gameplay. Resources can be collected when you are offline.
* A way to know the essential resources for life.
* Unlock numerous alien cards and accelerate construction speed.
* A space station to speed up the process of building.
* A mining feature to get more resources and upgrade your spaceship.


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Idle Planet Building Simulator: Craft worlds, rescue aliens
Updated on
7 Apr 2026

Data safety

Safety starts with understanding how developers collect and share your data. Data privacy and security practices may vary based on your use, region and age. The developer provided this information and may update it over time.
  • No data shared with third parties
    Learn more about how developers declare sharing
  • This app may collect these data types
    Location
  • Data is encrypted in transit
  • You can request that data be deleted

Ratings and reviews

2.51k reviews
Jake Wheeler
3 August 2023
This game is almost perfect. I haven't finished it but have seen some reviews about it being relatively short (<50 lvls). My biggest issue is when starting a new planet, there are certain quest cards you get every single planet but you can't actually count progress until the quest is one of the three active. I will purposefully not collect any of the research points earned from upgrading until the card shows up, otherwise you waste materials. It's just annoying having all the flags on screen.
54 people found this review helpful
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Josephine N.
29 August 2023
Finished the game (lvl 50) in 2? Or 3 weeks. not much challenge. You gain the points while idle. something you can do (click to level up) when you're waiting for transport. Not much of a story whatsoever. Quests are all similar just the points needed different so it's boring. No intrusive ads is a plus.
13 people found this review helpful
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Taran Pitman
28 May 2023
Simple but overall good idle game, has a (current) limit of 50 planets which is nice, as I found myself to have finished with the game by the 40th but kept playing it to finish it. It's nothing amazing but it's definitely not offensive or aggressive with it's advertisments. Can recommend a download.
15 people found this review helpful
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What's new

Bug fixes & performance enhancements.