Idle Mastermind
Grumpy Rhino Games
4.6 ★
4K ratings
100,000+
downloads
Free
+ in-app
In this idle villain simulation, build a lair, hire henchmen, and execute evil plans. Includes multiple villains, resource management, and offline income features.
AppRecs review analysis
AppRecs rating 4.6. Trustworthiness 83 out of 100. Review manipulation risk 23 out of 100. Based on a review sample analyzed.
★★★★☆
4.6
AppRecs Rating
Ratings breakdown
5 star
73%
4 star
18%
3 star
4%
2 star
3%
1 star
2%
What to know
✓
Low review manipulation risk
23% review manipulation risk
✓
Credible reviews
83% trustworthiness score from analyzed reviews
✓
High user satisfaction
73% of sampled ratings are 5 stars
About Idle Mastermind
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.
Idle Mastermind Screenshots
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Reviews for Idle Mastermind
Raiden Lamothe
2/19/2026
very very fun, amazing, little ads, not p2w, and overall amazing game. however, I do think its a little rebirth heavy, and a bit repetitive at times often leading to stand stills. the art style is amazing, and the developers are amazing (i recommend their other game "necromerger" its their latest and best project") but I think this game has a little to go, but sadly I dont think it will get those finishes, since grumpy rhino has moved on. atleast we have it right now, still super fun!
Aiden Bautista
2/7/2026
so far its progressing pretty fast, I know it'll slow down but its fun enough to keep on. it has good art and music especially yaras music. all the games this company makes are good.
