Tier 1 — Essentials
The four Foundations in Tier 1 — Essentials keep you alive. Water, Food, Medical, and Shelter cover what you need in the first 72 hours of any disruption, and the permanent systems that replace the temporary ones when "72 hours" becomes "indefinitely."
Tier 1 is where most people start, and where the highest-stakes content on Survipedia lives. Every page in these four Foundations is written to function as a standalone field manual — a beginner without expert help, holding the printed page, must be able to act.
You don't have to finish Tier 1 before moving to Infrastructure or Fieldcraft. You build all three tiers in parallel, starting where your gaps are biggest.
The four Essentials Foundations
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Source it, purify it, store it. From apartment bathtub reserves to rainwater cisterns, gravity-fed systems, and hand-dug wells.
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Pantry stacking, canning, dehydrating, gardening, foraging, livestock, and the math of feeding yourself year-round from what you grow.
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First aid to trauma care to pandemic protocols. Build kits, learn skills, stockpile what you'll need when professional help isn't available.
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Emergency tarps to reinforced safe rooms to owner-built homes. Harden where you live, know how to shelter anywhere, and build from the ground up.
How the four interact
The Essentials Foundations are tightly coupled. A water plan that ignores sanitation puts the medical plan at risk. A food plan with no cooking energy isn't a food plan. A shelter with no thermal management is a medical problem in waiting.
When you read across the four hubs, look for the cross-references — they show where one Foundation depends on another, and where a single decision (where to put the cistern, how to vent the wood stove, where to site the latrine) closes gaps in two or three Foundations at once.
Where to go next
- Tier 2 — Infrastructure — Energy, Security, Community, Threats. The systems that keep Essentials running from day 4 onward.
- Tier 3 — Fieldcraft — Skills, Gear, Mobility, Mindset. The capabilities that multiply everything else.
- Find Your Path — pick a persona on-ramp (Medical-Dependent Family, Low-Budget Beginner, Suburban Family, Rural Homestead) that sequences Essentials work for your situation.
- First 30 Days Off-Grid — the published cross-Foundation guide that walks the Essentials in order.