Cairn's economy is deliberately small. There are no ore veins, no alchemy gardens, and no trader inventories. The entire resource list fits in one sentence: pitons, chalk, finger tape, food, water and medicine. Every climb is a management problem across those six, and the golden rule holds throughout: resources spent on survival are never wasted, even when they cost you the summit. Turning back with supplies to descend safely is a successful climb. This guide maps each resource to its job, its sources, and the habits that keep it stocked. Mechanics reflect the release version (January 29, 2026, PC and PS5); where the game hides numbers, we describe systems rather than invent them.
Last updated: August 21, 2026
The Six Resources That Matter
Each resource solves exactly one category of problem. Learn the job first; the sourcing follows.
Resource
Job
Where It Comes From
Management Rule
Pitons
Checkpoints, fall protection, off-belay rest stations
Loot near campsites and bivouacs; Climbot crafts 1 from 2 scrap sets
Place regularly; a hoarded harness protects nothing
Chalk
Extra grip on the next 12 handholds per application
Compost trash with Climbot
Use before cruxes; it is renewable rather than precious
Finger tape
Protects torn fingers and preserves grip over long climbs
Loot containers across the mountain
Re-tape at every bivouac, finger by finger
Food
Fuels hunger; cooked meals add timed buffs
Foraging, loot containers, cooking at the stove
Carry one more meal than the day needs
Water
Fuels thirst; drinks can warm or buff as well
Streams, ponds, rock cracks, bivouac refills
Fill everything at every water source you pass
Medicine
Restores health; some items add timed buffs
First aid kits and medical loot containers
Save it for after falls rather than before cruxes
The whole economy: the mountain supplies, the backpack carries, the wall consumes, and the bivouac converts waste back into pitons, chalk and meals. Nothing else competes for your slots.
Where Supplies Actually Come From
Mount Kami restocks a climber who pays attention. Five source categories cover everything, and each rewards a specific habit.
Pick everything in reach on approaches; ingredients are free progress
Loot containers
Food, drinks, tape, medicine, piton scraps
First aid kits, vending machines, bear-proof boxes and cooling pots sit at fixed spots worth routing past
Water sources
Bottle and canteen refills
Streams, ponds and many rock cracks; bivouacs refill bottles without leaving the tent
Abandoned camps
Mixed gear, food, sometimes recipes
Scavenge deliberately: climbing gear or cooking supplies, whichever the next wall needs
Climbot loops
Pitons from scraps, chalk from trash
The only infinite sources on the mountain; feed them and they feed you
Packing Order When Space Runs Out
The backpack limits by physical space rather than weight, so packing is a layout puzzle with a clear priority order. When something does not fit, cut from the bottom of this list; never the top.
#
Pack This
Why It Leads
1
Full piton harness
Six anchors are checkpoints, rest stops and fall protection in one; nothing else in the pack does three jobs
2
Chalk + tape
Grip is the resource every move draws on; both are cheap to replace and expensive to lack
3
Food + water for the day
Cooked meals and filled canteens beat raw bulk; every slot should be finished food or drink
4
Medicine reserve
A small medical kit covers the gap between a fall and the next bivouac's sleep
5
Everything else stays
Gear that only helps in perfect conditions is dead weight; physical space is the limit
Retreat Signals: When Supplies Say Go Down
Resources are also a decision system. Each of these signals means the next section will be paid for with a meter or an anchor you no longer have:
Hunger or thirst in the red stage
Eat or drink now, then reassess; climbing damaged is climbing shortened
Fewer than two spare pitons and a crux ahead
Retreat to the last bivouac and rebuild from scraps
Health damaged with no medicine left
Head for the nearest bivouac sleep instead of gambling the margin
Backpack empty of drinks before a cold push
Warmth lives in hot food and drinks; restock or wait out the cold
None of these are failures. A climber who descends on her own terms arrives at the next bivouac with her scraps, her trash, her recipes and her knowledge: every input the next attempt needs. The mountain keeps what you learned; only the consumables reset.
FAQ
How many pitons should I carry?
Six fit on Aava's harness, and spares ride in the backpack; Troglodyte pitons count toward the same six slots. The right number is less about stockpiling and more about supply: loot near campsites and bivouacs replaces what you place, Climbot rebuilds one piton from two sets of scraps, and retrieval can recover some anchors behind you. Start every push with a full harness and treat placement as spending rather than losing.
Do supplies respawn if I revisit an area?
Loot containers (first aid kits, vending machines, bear-proof boxes, cooling pots) sit at fixed locations you can plan routes around, and forageable plants grow across the mountain. The truly renewable resources are the crafted ones: chalk from composted trash and pitons from scrap mean your grip and protection never have to run dry as long as you keep feeding Climbot.
What happens if I run out of water?
Thirst works in stages. While the meter is white nothing happens; when it empties into the red stage Aava is dehydrated, climbing damages her, and the red meter drains much faster. If that stage empties too, she passes out for hours and wakes critically dehydrated, taking constant damage. Drinking anything resets thirst to the safe stage, which is why even a half-bottle matters, and why refilling at every stream, pond and water-filled rock crack should be automatic.
What is worth keeping versus composting?
Compost all trash (wrappers, broken items, food waste) because it becomes chalk, and chalk is spent by design. Keep piton scraps (two sets are a rebuilt piton), finger tape, and medicine. Food is contextual: raw ingredients are heavy in bulk, so cook meals at bivouacs and carry finished food rather than a pantry. When the backpack is full, the first things to leave are duplicates of items you can craft or forage later.
How do I heal without medicine?
Sleeping at a bivouac restores health, which makes every camp a partial hospital. Medicine's role is the stretch between camps: after a hard fall on a section far from the next tent, a medical item buys back the health margin you need to keep moving. Cooked meals with health-restoring effects help too. If health is low, medicine is low, and the next bivouac is far, that is a retreat signal rather than a resource problem to solve mid-wall.
Last updated: August 21, 2026. Resource mechanics verified against the release version of Cairn (PC/PS5, January 29, 2026). Fan guide, not affiliated with The Game Bakers.
