Idle Mastermind

Name: Idle Mastermind
Rating: 4.6 (430 reviews)
Author: Grumpy Rhino Games LTD

Play the super villain!

Free · In‑App Purchases · Designed for iPad. Not verified for macOS.

430 Ratings
Age Rating

13+
Years
Category

Simulation
Developer

Grumpy Rhino Games LTD
Language

EN
English
Size

296
MB

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

out of 5

430 Ratings

My favorite Idle Game
02/27/2022

Soumasomatic
This game is wonderful for a variety of reasons. Witty dialogue, unique characters, a fun aesthetic, etc. But the reason I call it my favorite idle game is because of the base mechanics. Most idle games to me start fun, get boring after a certain point, pick up again in the late game, and then taper out. This game gets rid of the middle trough, so I already feel like I’m in the late game, and even after playing for 8 months the fun hasn’t tapered off. By having resets that take you to other characters, you get to stay in the fun early game period while still making progress. Additionally, I haven’t spent a cent on this game. Yes, I watch adds sometimes but the game makes that entirely optional and the AdMan system makes sure I don’t overload myself on ads either. I can check in on the game throughout the day, and probably put in an hour or two a day, which is exactly what I want from an idle game. Cannot recommend enough
My favorite Idle Game
02/27/2022

Soumasomatic

This game is wonderful for a variety of reasons. Witty dialogue, unique characters, a fun aesthetic, etc. But the reason I call it my favorite idle game is because of the base mechanics. Most idle games to me start fun, get boring after a certain point, pick up again in the late game, and then taper out. This game gets rid of the middle trough, so I already feel like I’m in the late game, and even after playing for 8 months the fun hasn’t tapered off. By having resets that take you to other characters, you get to stay in the fun early game period while still making progress. Additionally, I haven’t spent a cent on this game. Yes, I watch adds sometimes but the game makes that entirely optional and the AdMan system makes sure I don’t overload myself on ads either. I can check in on the game throughout the day, and probably put in an hour or two a day, which is exactly what I want from an idle game. Cannot recommend enough
Much better than average. Not amazing.
12/24/2024

Chris Vharles
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.
Much better than average. Not amazing.
12/24/2024

Chris Vharles

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.
I encountered an audio error, please fix \/
08/14/2021

BlueInklingBoi64
So the game is fine and i love it to bits, but there’s an audio error that happens randomly and consistently for long periods of time when I play. And turning SFX and music off doesn’t fix it. It sounds like someone high-fiving or chopping rubber...like a wa-Poosh or ca-chunk. It doesn’t stop until I close the app and turn off my phone. It’s annoying and I can’t get it to stop. It persists after closing the game and opening other things, and it’s only happening with this game. Please fix it, I love this game and I wanna keep playing. Thank you.
I encountered an audio error, please fix \/
08/14/2021

BlueInklingBoi64

So the game is fine and i love it to bits, but there’s an audio error that happens randomly and consistently for long periods of time when I play. And turning SFX and music off doesn’t fix it. It sounds like someone high-fiving or chopping rubber...like a wa-Poosh or ca-chunk. It doesn’t stop until I close the app and turn off my phone. It’s annoying and I can’t get it to stop. It persists after closing the game and opening other things, and it’s only happening with this game. Please fix it, I love this game and I wanna keep playing. Thank you.
Great game!
08/16/2024

Mitogh
Found a slight crashing issue though. I saved to buy Counterfeint early before most of the other henchmen and whenever she robbed a building, it crashed. I had to avoid the surface animations until I unlocked a crew with her, which stopped crashing. Wasn’t sure if this glitch was noticed, but it hasn’t caused any issue with the enjoyment of the game.
Great game!
08/16/2024

Mitogh

Found a slight crashing issue though. I saved to buy Counterfeint early before most of the other henchmen and whenever she robbed a building, it crashed. I had to avoid the surface animations until I unlocked a crew with her, which stopped crashing. Wasn’t sure if this glitch was noticed, but it hasn’t caused any issue with the enjoyment of the game.

+ Technical update.

Version 1.34 11/05/2025

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Accessibility

Information

Seller: Grumpy Rhino Games LTD
Size: 296 MB
Category: Simulation
Compatibility: Requires iOS 13.0 or later.

iPhone
Requires iOS 13.0 or later.

iPad
Requires iPadOS 13.0 or later.

iPod touch
Requires iOS 13.0 or later.

Mac
Requires macOS 11.0 or later and a Mac with Apple M1 chip or later.

Apple Vision
Requires visionOS 1.0 or later.
Languages: English
Age Rating: 13+

13+

Learn More

Infrequent
Cartoon or Fantasy Violence
Profanity or Crude Humor
Mature or Suggestive Themes
Alcohol, Tobacco, Drug Use or References
In-App Purchases: Yes

Remove Ads $9.99

More Everything $14.99

Event Pack $9.99

500 Gems $9.99

Yara Starter Pack $9.99

Seasonal Bundle $9.99

1,250 Gems $19.99

Golden Throne $14.99

200 Gems $4.99

LOL Starter Pack $24.99

Learn More