IMUNO: Idle Immune System
Simulation
Only for iPhone
Free · Designed for iPhone. Not verified for macOS.
iPhone
Eight immune cells feed each other while you sleep. Pick the invader you fight, resolve the infection, keep the Memory Points. No loot boxes, ever.
Your body is the factory. Eight immune cells feed each other in a chain that never stops: Neutrophils make cytokines, Macrophages make Neutrophils, and so on up to the Stem Cell. Buy one cell and the whole chain runs faster, awake or asleep.
IMUNO is a long idle game. Not a week long. Years.
FIGHT SOMETHING REAL
Every Immune Response is a fight against one invader, and you pick it. A Bacterium is quick. A Parasite takes five hundred times the cytokines and pays far more Memory Points. The Virus grows harder the longer you watch it, so it rewards being there. Three invaders are on the board at a time, and the choice is yours every single response.
RESOLVE, AND START AGAIN STRONGER
When the infection is beaten, Resolve. Cells and cytokines reset; Memory Points stay. Spend them on the organ trees, on permanently unlocking the top four cells, or save them for the next organ. The game tells you what the next Resolution will cost and roughly how long it will take, before you commit.
ORGANS, NOT MENUS
The Bone Marrow is only the first layer. Each organ has its own rank, its own install grid, its own clones, and its own Hypertrophy that resets the organ for a permanent multiplier. The Thymus makes every upgrade cheaper and stronger. More organs arrive over time, each with one new mechanic.
OFFLINE THAT ACTUALLY WORKS
Close the app and your cells keep producing, capped and always reported honestly: what you earned, and what the cap cost you. No fake timers.
FAIR BY DESIGN
No loot boxes. No gacha. No random purchases of any kind. Rewarded ads are optional and give Boost Tokens; the shop sells convenience and permanent multipliers, each described in one sentence that says exactly what you get. Nothing you buy is random, and nothing gates progress behind payment.
No account. No sign-up. Open it and play.
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The developer, Marcos Goncalves, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Not Linked to You
The following data may be collected but it is not linked to your identity:
- Purchases
- Identifiers
- Usage Data
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- Clinica Medica Sampaio e Goncalves LTDA
- Size
- 282.4 MB
- Category
- Simulation
- Compatibility
Requires iOS 17.0 or later.
- iPhone
Requires iOS 17.0 or later. - Mac
Requires macOS 14.0 or later and a Mac with Apple M1 chip or later. - Apple Vision
Requires visionOS 1.0 or later.
- iPhone
- Languages
- English
- Age Rating
4+
- 4+
- Contains
Advertising
- Copyright
- © 2026 Clinica Medica Sampaio e Goncalves LTDA