Diamond City: Idle Tycoon

In-app purchases
4.4
15.4K reviews
1M+
Downloads
Content rating
Everyone
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About this game

Become a real tycoon and develop your idle city.

Start in a small town and turn it into a big city. Develop the transportation system! Build new amenities and upgrade them. Open up areas for buildings in your diamond city. Let visitors to the city touch the future. Feel like a real tycoon of this world!

Draw up a development plan and optimize the flow of visitors - don't let them get bored standing in line to enter your diamond city! You are a tycoon here and everything depends on you! Design marketing campaigns to attract new guests. More city visitors - more income!

You like idle games that are calm and not too stressful? You're sure to love our idle game Diamond City. Take big decisions and build the best futuristic dream diamond city in the world!


If you like management and idle games, you’ll definitely enjoy Diamond City!


Main points:
• creating a futuristic city with unique amenities;
• taking important development decisions;
• an extensive list of interesting tasks;
• stylized 3D graphics;
• awesome animation for each level of buildings.
Updated on
Jan 22, 2024

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.
This app may share these data types with third parties
Financial info, App activity and 2 others
This app may collect these data types
Personal info, Financial info and 2 others
Data isn’t encrypted
You can request that data be deleted

Ratings and reviews

4.4
14.6K reviews
Bianca Billins
January 13, 2023
Fun like I would expect an idle game to be, however, right after 2 or 3 ads you click on to play when it's time to get back to the game, the game screen goes black frozen for about 7 to 12 seconds and then just closes. When I open it back up it doesn't give me the credit that I earned to watch the video. I struggled through it for an hour because I liked the game but I'm over it now. Badly rated, unstalled and on to the next. Shame. I usually play these for days. 🗑
74 people found this review helpful
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MTAG PUBLISHING LTD
September 12, 2023
We are very sorry that you gave such a low rating 😔 We will take into account your feedback and try to make the game more enjoyable. 😥
Mark Ronerts
March 9, 2023
Good concept game! Sadly it crashes frequently, has problems maintaining wifi connection, often cannot load ads, often failed to give a bonus after an ad, and now will not load its own update. I tried this game to get a bonus in another game. The failures mean I will not receive that bonus. It has been little more than an annoyance. Good bye! Update: I said "good bye" sir! (Couldnt resist)
53 people found this review helpful
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MTAG PUBLISHING LTD
March 6, 2023
Good afternoon Write to us at support@mysterytag.com for more details about this issue, and we will help you!
Finn Kriess
April 20, 2023
I think it's a fun game and very straight forward! Just a couple things... 1- the offline time does not work and only lasts 5 min and not the two hours it says it will be...(minor issue) and 2- I made a payment of $1.00 but it did not go through... (another minor issue) but if those get fixed than I'll increase the stars! Otherwise the app is wonderful and the ad amount is not ludicrous! Ty!
42 people found this review helpful
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MTAG PUBLISHING LTD
September 12, 2023
Player, thank you for your feedback!🥰 We will take into account your wishes in future updates of the game.👾 If you want to share ideas or report in-game bugs, please contact us at support@mysterytag.com 💌

What's new

• Fixed some technical and functional bugs
• Corrected in-game balance