Idle Mastermind

Idle Mastermind

Play the super villain!

418 ratings
45 reviews
Free
In-App PurchasesWith Ads

Details

  • Released
  • Updated
  • March 30, 2021
  • November 5, 2025

Features

Idle Mastermind screenshot #1 for iPhone
Idle Mastermind screenshot #2 for iPhone
Idle Mastermind screenshot #3 for iPhone
Idle Mastermind screenshot #4 for iPhone
Idle Mastermind screenshot #5 for iPhone
Idle Mastermind screenshot #6 for iPhone
Idle Mastermind screenshot #7 for iPhone
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About

Embrace your inner supervillain in this idle simulation game. Build a secret lair, recruit henchmen, and execute dastardly plans to take over the world. Choose from three unique villains, each with their own strategies and grand schemes.

Play as 3 distinct supervillains
Build and customize your evil lair
Hire and manage an army of henchmen
Raid cities for resources
Unlock new research and skills
Execute evil grand plans
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What users say

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What's New in Idle Mastermind

1.34

November 5, 2025

+ Technical update.

12

In-App Purchases

$4.99

200 Gems

Gain 200 Gems.

User reviews

Still fun, but not as amazing as their other titles

I still like it a lot, but the gameplay loop isn’t as satisfying and strategic as Necromerger and Idle Apocalypse. Also the art and things you unlock aren’t as interesting to me since I prefer monster-type characters.

I want to like it

Like their other game NecroMerger, there’s a lot to like: the pixel graphics are great, there’s a lot of whimsy, and it’s clearly a polished game. But it’s just painfully slow to make any progress. And this game (unlike NecroMerger) has a ‘prestige’ mechanic, so it’s painfully slow… over and over again in the exact same way. I’m not suggesting the game progress 1,000% faster, but maybe 20% faster. Fundamentally both games at their current pace are just boring.
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Great!

One of my favorite mobile games.

Much better than average. Not amazing.

Witty humor, colorful art, which is something you’d better have for an idle game, since you will be seeing it constantly. Fun game that is a little short in content and a bit high in price. You can earn all currencies without spending money, but they expect you to spend valuable corruptinite to a large extent to even play the events. In NecroMerger, this companies other, better idle game, they are included in the game. They are timed to once per week, like in this, but do not cost you rare resources to participate in. I was staggered when I saw to reparticipate in the moon laser event, it would cost almost ten dollars in corruptinite. It was not nearly fun or valuable enough for me to even consider doing again. That is a preposterous misfire clearly designed to drain money. NecroMerger has a much fairer attitude. The seasonal and normal events are fun, rewarding, and free. Here, I feel much less generosity at play.

Worth playing, but I would highly recommend not spending much money. You can get everything with enough time, and money invested does not give back enough for it, in my opinion. Also after a few weeks I seem to have maxed a lot of the building progression which is staggering considering how much better paced their other game is, which trickles content out over month and years.
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Crippled by microtransactions

It will take you an inordinate amount of time to accumulate the resources needed to unlock the later villains needed for basic progression unless you spend way more money on the game than it’s worth.

Developer apps

User experience

🐞

Reported Bugs

8 issues

Game crashes when Counterfeit character robs buildings

Bug

Random audio error producing persistent chopping/high-five sounds

Bug

Progress randomly deleted without explanation

Bug

Game crashes at startup after updates

Bug

Laboratory won't produce microchips, causing soft-lock

Bug

Ad boost offers not functioning

Bug

Graphics rendering issues on some iPhones

Bug

Mission quest exploit allowing infinite gem farming

Bug

Requested Features

6 requests

Increase progression speed by 20%

Feature

VIP program with spending-based rewards and stat bonuses

Feature

Skin texture overhaul with Sid's tower theme

Feature

More content and longer event durations

Feature

Better balance between free and paid progression paths

Feature

Additional activities in city and base areas

Feature

FAQ

What is Idle Mastermind?

Idle Mastermind is an idle simulation game where you play as a supervillain. You can build a secret lair, recruit henchmen, raid cities, and execute evil plans to take over the world. The game features three distinct villains, each with unique strategies and stories.

What are the key features of Idle Mastermind?

Key features include playing as three unique supervillains, building and customizing a lair with various floors that generate resources offline, hiring and managing over 20 different henchmen with unique abilities, raiding cities for resources, and unlocking new research and skills to advance your criminal empire.

Is Idle Mastermind free to play?

Yes, Idle Mastermind is free to play. However, it does offer in-app purchases and includes advertisements. These can be used to speed up progress or acquire cosmetic items.

What kind of devices can I play Idle Mastermind on?

While specific compatibility details are not provided in the description, games of this nature are typically available on both iOS and Android mobile devices. You can usually find it on the Apple App Store and Google Play Store.

Who is Idle Mastermind for?

This game is designed for players who enjoy simulation games, incremental clickers, and role-playing games. It appeals to those who like the idea of being a villain, building an empire, and progressing through strategic gameplay with a humorous tone.