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Nuclear, Radiological & CBRN
The scenario everyone fears — and the one with the clearest survival doctrine.
Fallout, shielding, and decontamination, cited from real civil-defense doctrine.
4
Modules
17
Lessons
9
Free to start
Every lesson cited live from real field manuals
What you'll be able to do
Apply the 7:10 rule to predict fallout decay and shelter timing after a nuclear detonation
Calculate how much shielding you have and what it reduces your dose by
Execute decontamination (clothing removal, hair washing) in the right order
Administer potassium iodide at the correct dose by age within the protective time window
Distinguish between a nuclear blast and a radiological dispersal device (dirty bomb)
Decide when it is safe to leave shelter using a fallout meter or timed decay tables
01
Radiation Foundations
FreeUnderstand the threat to survive it.
02
Surviving Fallout
FreeThe first hours and days decide everything.
03
Decontamination & Health
ProGet clean, stay clean, stay alive.
04
Chemical & Biological
ProThe other letters in CBRN.
Start free with the opening modules. Unlock the full path — beginner to expert — with Pro.