Diamond City: Idle Tycoon

In-app purchases
3.7
17.1K reviews
1M+
Downloads
Content rating
Rated for 3+
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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
May 24, 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

3.7
16.3K reviews
Jonathan Salter
July 23, 2024
Big time waster, doesnt calculate right. Watched theee vids on that tower of vids, 5 total, but when i got to the 3rd one this time, it all went back to the first one. So i watched them for nothing. If u dont plan to spend a fortune on a game that doesnt give anything in return, b prepared to watch a lot of ads. Just dont do it!
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MTAG PUBLISHING LTD
July 26, 2024
Dear player, write to us at support@mysterytag.com for more details about the problem you are facing. 💌
Allison Spalter
July 19, 2024
Omg there are so many ads... and yes, you can pay $12 to remove the ads, but omg, this is such a miserable experience- extorting users isn't the way -update after response- Yes, I do understand the need for ads in a free game... however, I'd make 3 actions and get an ad... another 3 actions... ad... 3 more actions... ad... andnso forth... thank you for considering changing the frequency of the forced autoplay ads
1 person found this review helpful
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MTAG PUBLISHING LTD
July 19, 2024
Hello, player! Advertising helps us develop and improve our games! 👾 Also, due to advertising, you can receive bonuses in the game.🤩 We will take into account your wishes and reduce its frequency of appearance in the game.😔
Nick Dunstan
July 16, 2024
Forced ads. Edit in Response to Developer: The problem is the 'forced' portion of the ads, not the ads themselves. There are other ways to profit than forcing ads on us without rewards or an incentive program.
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MTAG PUBLISHING LTD
July 15, 2024
Hello !🤗 Advertising helps us develop and improve our games! 👾 Also, due to advertising, you can receive bonuses in the game.🤩 We will take into account your wishes and reduce its frequency of appearance in the game.😔

What's new

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