Diamond City: Idle Tycoon

In-app purchases
26.9K reviews
Content rating
PEGI 3
1M+
Downloads
Content rating
PEGI 3
In-Game Purchases
Learn more
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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.
Build and manage a thriving futuristic city in this idle tycoon game!
Updated on
Dec 11, 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

25.8K reviews
Billee Kelder
July 29, 2026
The game is OK. a little repetitive even for an Idle game, but OK. The problem is the ads. Not that there are ads, they have to make money. The problem is the ads malfunction half the time. Especially the ones for apps like Playwell. You watch the ad, and then it forces open a web page to load google play store which causes the game to restart and steal your reward for watching the ad. This is unacceptable.
1 person found this review helpful
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MTAG PUBLISHING LTD
July 29, 2026
Hi! We're so sorry you're experiencing this issue. Losing a well-earned reward after watching a video is truly frustrating. We'll be sure to check your ad settings to ensure they don't break the game. Please contact us at support@mysterytag.com; we're eager to fix this! 😔
Laura
March 5, 2023
The game play is good with a nice pace of progression through the game provided that you pay not to have ads. The problem is that the game freezes, meaning that I have to force close it and reload the game constantly, making it pretty much unplayable at this point. UPDATE: I emailed as requested and nothing happened. Shouldn't need to email them anyway. Stop expecting people to pay if your not going to debug the game.
30 people found this review helpful
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MTAG PUBLISHING LTD
March 6, 2023
Good afternoon Dear player, our team has responded to your letter. Please check your spam folder.
Simon Cornwell
March 26, 2023
Unplayable unless you spend money to allow the game to play when turned off. Otherwise you need to leave the game running for hours on end to gain enough money to build more buildings. I did this and still cant move forward in the game. Nothing to show what you need to do next. Stuck now. Also not going to spend any money on a game in the first few weeks of starting playing it. Going to un install the game now.
30 people found this review helpful
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MTAG PUBLISHING LTD
March 27, 2023
Good afternoon Write to us at support@mysterytag.com about this problem in more detail and we will help you!

What’s new

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