Go Narrow: Antibiotics Game
Bacteria, finally covered
Only for iPhone
$3.99 · Designed for iPhone. Not verified for macOS.
iPhone
Learn which antibiotics cover which bacteria, and why. 67 levels, animated lessons on how drugs work and how bacteria resist, a Gram stain lab and a daily Night Shift.
I'm a microbiology resident, and ever since I studied antibiotics in medical school I've been thinking about how antibiotic coverage could be taught in a fun way. Many medical students, and residents too, really struggle with it. Go Narrow is my answer: a game that teaches which antibiotics cover which bacteria, and why.
Each level is a culture plate. Tap the bacteria your antibiotic covers, leave the ones it doesn't, and use the culture result to choose the narrowest drug that works. Every wrong tap tells you why in one sentence: an enzyme destroys the drug, its target has changed, or the drug can't get in. The pairs you get wrong come back for review until they stick.
Target lessons animate the mechanism of action, from the cell wall and membrane to the ribosome, DNA gyrase and folate synthesis. Resistance lessons show how bacteria fight back: MRSA, VRE, ESBL, AmpC, carbapenemases and CRAB.
In the Lab you learn Gram staining step by step and train your eye for morphology: Klebsiella are Gram-negative rods, staphylococci Gram-positive cocci in clusters, streptococci Gram-positive cocci in chains.
For learning only: real prescribing depends on local resistance, the site of infection and the patient, so always follow your local guidelines.
Ratings & Reviews
- New: a short Quick tour for first-time players, which you can skip.
- New: the Cystitis drugs walk-through, on fosfomycin, nitrofurantoin and pivmecillinam.
- Fixes in the Cell wall lesson and on the map.
Thank you for every report and review!
The developer, Johanna Galaski, 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 Collected
The developer does not collect any data from this app.
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- Johanna Galaski
- Size
- 3.7 MB
- Category
- Education
- Compatibility
Requires iOS 15.0 or later.
- iPhone
Requires iOS 15.0 or later. - iPod touch
Requires iOS 15.0 or later. - Mac
Requires macOS 12.0 or later and a Mac with Apple M1 chip or later.
- iPhone
- Languages
- English
- Age Rating
16+
- 16+
- Frequent
Medical Treatment information
- Copyright
- © 2026 Johanna Galaski

