Idle Mastermind

Grumpy Rhino Games

Contains adsIn-app purchases

About this game

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.

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 and reviews

Fun idle game. Unfortunately progression relies on hard to get materials, and spending them wisely. If you don't you will get to a point where you can no longer progress until you grind those hard to get materials. The green gem things are the most difficult to grind and you need a lot of them or spend money, it's possible to grind them via daily missions but it'll take awhile. Other than that it's fun, silly, and an overall great time killer. Just a little grindy at times.

I enjoyed the game. It had a clever charm that kept me engaged... then the game lost my data. Twice. Both times just as I started the Evil Eye progression. It's disconcerting, especially after having paid for the ad free option, and the fact that their Idle Apocalyose game doesn't have this issue. Maybe I'll check on it later to see if the bug gets fixed, but for now the sudden loss of effort isn't worth it.

Pretty fun game, much like all the others made by this dev team. Always liked the little events and such, and how removing ads removes them completely. Especially happy about the cooldown on events as opposed to the replay tokens in idle apocalypse. And you can potentially play to completion without spending anything, because the login rewards are pretty good. Takes a long time to beat even with money, so you get plenty out of the game.

What's new

+ New skins for Ms DOS, Sharktooth, Slug, Hax and Freedom Eagle, all available from the Mutation Stone shop.
+ Technical improvements and bug fixes.