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Screenshots

  • Idle Mastermind screenshot 1
  • Idle Mastermind screenshot 2
  • Idle Mastermind screenshot 3
  • Idle Mastermind screenshot 4

About Idle Mastermind

Ever wanted to be the villain? To build a lair? Hire henchmen? Fight superheroes? Concoct dastardly plans? Raid a city? Or… take over the world? No? What, really? Sure you do! Idle Mastermind, from the makers of Idle Apocalypse, is the best supervillain simulator of 2020! Play as three supervillains. The techy but tiny: Dr DOS. The gangster crime boss: Yara. Or the unpredictable: LOL. Each has their own evil grand plan. Build a lair to run your empire from. Hire a bunch of evil henchmen to do your bidding. Raid the city above to gain precious resources. Unlock new research and skills to improve your criminal, idle empire. When you’re ready, execute your evil plan and bring about the apocalypse! Play as 3 distinct villains, each with: + A unique lair with special floors and henchmen. + Different strategies, skills and stories. + Unique resource management styles. Build your dream lair: + 30 unique floors. + Floors that will generate resources while offline. + Special floors with unique gameplay elements. Hire an army of evil thugs: + 20+ henchmen. + Different classes, abilities. + Unique resource management gameplay. And more...! + Collect heaps of skins. + Complete events. + Join the Evil Eye Association. On top of that it has all the humour and inane chatter of a Grumpy Rhino game. The makers of Idle Apocalypse. Lovers of simulation games and incremental clickers won’t be able to put down this dastardly, near criminal RPG.

Ratings & reviews

4.6

440 ratings

5 ★ 82% 4 ★ 9% 3 ★ 3% 2 ★ 2% 1 ★ 4%

What’s new

Version 1.35 · Updated September 16, 2026

+ Large technical update.

App privacy

The developer, Grumpy Rhino Games LTD, reported these privacy practices to Apple.

Data Used to Track You

The following data may be used to track you across apps and websites owned by other companies:

  • Identifiers: User ID, Device ID
  • Usage Data: Product Interaction, Advertising Data

Data Linked to You

The following data, which may be collected and linked to your identity, may be used for the following purposes:

  • Identifiers: Device ID, User ID
  • Usage Data: Product Interaction, Advertising Data

Used for: Third-Party Advertising, Analytics, App Functionality

Data Not Linked to You

The following data, which may be collected but is not linked to your identity, may be used for the following purposes:

  • Diagnostics: Crash Data, Performance Data

Used for: Analytics, App Functionality

Alternatives to Idle Mastermind

Looking for apps like Idle Mastermind? Here are 6 similar apps on the App Store. The highest rated is Idle Obelisk Miner (4.9/5), and all 6 are free to download.

Idle Mastermind vs. alternatives
App Rating Price Last updated Compare
Idle Mastermind 4.6 / 5 (440 ratings) Free September 16, 2026
Idle Obelisk Miner 4.9 / 5 (3,578) Free Sep 30, 2026 Compare
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Space Colonizers Idle Clicker 4.7 / 5 (2,113) Free Oct 22, 2026 Compare
Idle Tower Builder: Miner City 4.8 / 5 (416) Free Sep 12, 2026 Compare

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