Diamond City: Idle Tycoon

In-app purchases
4.4
24.2K reviews
1M+
Downloads
Content rating
Everyone
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About this game

Start with a small town and transform it into a bustling futuristic city in Diamond City: Idle Tycoon! Develop your city by building and upgrading amenities, improving transportation systems, and attracting visitors with innovative marketing campaigns. Manage resources wisely to keep your city running smoothly and ensure that visitors have an unforgettable experience.

In this captivating idle game, take important business decisions to grow your city. Unlock new areas and create a dazzling array of attractions, from futuristic buildings to unique landmarks. Use your tycoon skills to optimize visitor flow, reduce wait times, and increase satisfaction.

Enjoy a relaxing yet engaging gameplay experience with stunning 3D graphics and smooth animations. With every new level, face exciting challenges and unlock new features to expand your city. Whether you're a fan of management games or idle simulators, Diamond City: Idle Tycoon offers endless fun and strategic depth.

– Create and manage a futuristic city with unique amenities.
– Develop and upgrade your city with important business decisions.
– Enjoy a variety of tasks and challenges.
– High-quality 3D graphics and animations.
– Engage in strategic gameplay to attract more visitors.
– Use power-ups and marketing campaigns to boost your city's growth.
– Compete with other players and rise to the top of the leaderboard.
– Save your progress to the cloud and continue on any device.
Updated on
Oct 1, 2025
Available on
Android, Windows*
*Powered by Intel® technology

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
23.1K reviews
John Keenan
November 2, 2025
Diamond City? More like Ad City. A lot of the ads never end and you need to close the whole game out and when you re-enter the game, you don't get rewarded. Unless you find watching ads fun, this is about all you'll get out of it. Then they ask you to pay like $12 to get rid of ads. For what? There's plenty of games where you get the same thing and they scatter their ad play out a few minutes and not seconds. This game does have potential but the constant ads make it horrible.
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MTAG PUBLISHING LTD
November 3, 2025
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.😔
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. 🗑
87 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. 😥
Glen W
December 19, 2023
The concept of the game itself is ok. It's an idle game like several others. However this one has a bug that robs you of your offline income. The game will claim that you earned income for 2 hours while offline, when it only gives you the equivalent of 3 minutes of offline income at the most. I have reported this bug several times with screenshots and have been ignored. Don't waste your time, there are plenty other games like this that aren't so buggy.
34 people found this review helpful
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MTAG PUBLISHING LTD
December 22, 2023
Dear player, our technical support team provides an answer to every player's request. If you have the application completely closed, you will not receive offline income, since to receive the amount offline you need the application to be open in the background.

What’s new

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