Maintenance Keycard
Maintenance Bunker A: the original player GPS and the opened dig hatch show the entrance together. Bring the Shovel; this is a 2023 entrance reference, not a full-island route.
Open map & farming steps ↗Sons of the Forest FARMING GUIDESKnow what to farm.
Know what to farm.
And where to go.
Sons of the Forest farming pairs surface scavenging with exploration of caves and underground facilities. Story access is gated by utility items such as the shovel and keycards. Kelvin can gather basic resources, while player cave runs yield equipment and progression items.
16 farming guides · PC / Global, final release
Maps you can use here
Preview the available maps and layouts. Each one links to its farming instructions.
Guest Keycard
Entertainment Bunker: the player GPS provides the entrance locator for the underground Guest Keycard route. This image identifies the entrance; the keycard is inside the bunker.
Open map & farming steps ↗
VIP Keycard
Food and Dining Bunker: match the GPS position and rock entrance before descending toward the VIP Keycard area. The source is a 2023 entrance reference; check access requirements in the guide.
Open map & farming steps ↗What matters before you farm
Unlock requirements, costs and tips to help you get started.
Get the cave tools before the Shovel
The Shovel Cave has both a zipline barrier and flooded sections, so bring the Rope Gun, Rebreather, and Air Tank before setting out.
Sources & fact checks
The Shovel opens a bunker route
Excavating the marked Maintenance Bunker A entrance leads to the Maintenance Keycard inside, which is a prerequisite for later keycard access.
Sources & fact checks
Save resin for gear you plan to print
Printer Resin is found near 3D printers, including in bunkers; the Maintenance bunker printers require the Shovel, while an outdoor printer is available at Ice Camp.
Sources & fact checks
Farm with a purpose
Prioritizes the cave and keycard progression chain first, then practical supply and food routes that support continued exploration.
Caves and gear
Rebreather
The Rebreather opens underwater routes and is a required piece of equipment for flooded sections of Shovel Cave.
Caves and gear
Zipline Rope Gun
The Rope Gun enables zipline traversal, including the barrier that blocks the Shovel Cave route.
Caves and gear
Shovel
The Shovel is a major progression tool that exposes buried bunker entrances, including the route to Maintenance A and its keycard.
Key items and bunkers
Maintenance Keycard
The Maintenance Keycard opens secured doors and comes before Guest and VIP keycard progression.
View 1 map ↗Key items and bunkers
Guest Keycard
The Guest Keycard advances access through secured bunker doors after you obtain the Maintenance Keycard.
View 1 map ↗Key items and bunkers
VIP Keycard
The VIP Keycard unlocks restricted doors and is a major step in the island's bunker progression.
View 1 map ↗Materials and supplies
Browse more guides in this category.
Materials and supplies
Printer Resin
Printer Resin lets you produce printed equipment and tools at a 3D Printer, making it a useful reserve for selected crafts.
Materials and supplies
Rope and Duct Tape
Rope and Duct Tape are common crafting supplies for equipment and repairs; gathering them during regular supply runs prevents…
Materials and supplies
Batteries
Batteries power equipment that consumes them and are useful to keep available for exploration and nighttime use.
Materials and supplies
Rain Catcher Water
A rain catcher provides a local water collection point at camp, helping prepare a flask for travel when conditions allow.
Food and wildlife
Browse more guides in this category.
Food and wildlife
Fish
Fish provide a practical food supply when you have access to a stream or lake and can be cooked or dried for later trips.
Food and wildlife
Fish Trap Loop
A well-placed Fish Trap turns a visible-fish water spot into a repeatable food check that fits ordinary base returns.
Food and wildlife
Animal Meat
Animal meat and fish provide food for expeditions; collecting and preserving surplus reduces reliance on opportunistic finds.
Food and wildlife
Drying Rack Surplus
Drying excess meat and fish preserves food for later trips and makes a hunt or fishing visit useful beyond the immediate meal.
Food and wildlife
Planter Crop Loop
Planters let you turn gathered seeds into a local supply of berries or herbs, reducing the need to find every plant in the wild.
Food and wildlife
Berries and Mushrooms
Foraged plants can supplement carried food during travel and make use of clearings you pass on the way to objectives.
Caves and gear
Browse more guides in this category.
Caves and gear
Rebreather
The Rebreather opens underwater routes and is a required piece of equipment for flooded sections of Shovel Cave.
Caves and gear
Zipline Rope Gun
The Rope Gun enables zipline traversal, including the barrier that blocks the Shovel Cave route.
Caves and gear
Shovel
The Shovel is a major progression tool that exposes buried bunker entrances, including the route to Maintenance A and its keycard.
Key items and bunkers
Browse more guides in this category.
Key items and bunkers
Maintenance Keycard
The Maintenance Keycard opens secured doors and comes before Guest and VIP keycard progression.
View 1 map ↗Key items and bunkers
Guest Keycard
The Guest Keycard advances access through secured bunker doors after you obtain the Maintenance Keycard.
View 1 map ↗Key items and bunkers
VIP Keycard
The VIP Keycard unlocks restricted doors and is a major step in the island's bunker progression.
View 1 map ↗EXPLORE YOUR NEXT SESSION
Browse goals & materials
Recommended farming guides. Search by item, goal or location.
Caves and gear
Rebreather
The Rebreather opens underwater routes and is a required piece of equipment for flooded sections of Shovel Cave.
Caves and gear
Zipline Rope Gun
The Rope Gun enables zipline traversal, including the barrier that blocks the Shovel Cave route.
Caves and gear
Shovel
The Shovel is a major progression tool that exposes buried bunker entrances, including the route to Maintenance A and its keycard.
Key items and bunkers
Maintenance Keycard
The Maintenance Keycard opens secured doors and comes before Guest and VIP keycard progression.
View 1 map ↗Key items and bunkers
Guest Keycard
The Guest Keycard advances access through secured bunker doors after you obtain the Maintenance Keycard.
View 1 map ↗Key items and bunkers
VIP Keycard
The VIP Keycard unlocks restricted doors and is a major step in the island's bunker progression.
View 1 map ↗Materials and supplies
Printer Resin
Printer Resin lets you produce printed equipment and tools at a 3D Printer, making it a useful reserve for selected crafts.
Food and wildlife
Fish
Fish provide a practical food supply when you have access to a stream or lake and can be cooked or dried for later trips.
Food and wildlife
Fish Trap Loop
A well-placed Fish Trap turns a visible-fish water spot into a repeatable food check that fits ordinary base returns.
Food and wildlife
Animal Meat
Animal meat and fish provide food for expeditions; collecting and preserving surplus reduces reliance on opportunistic finds.
Food and wildlife
Drying Rack Surplus
Drying excess meat and fish preserves food for later trips and makes a hunt or fishing visit useful beyond the immediate meal.
Materials and supplies
Rope and Duct Tape
Rope and Duct Tape are common crafting supplies for equipment and repairs; gathering them during regular supply runs prevents…
Materials and supplies
Batteries
Batteries power equipment that consumes them and are useful to keep available for exploration and nighttime use.
Materials and supplies
Rain Catcher Water
A rain catcher provides a local water collection point at camp, helping prepare a flask for travel when conditions allow.
Food and wildlife
Planter Crop Loop
Planters let you turn gathered seeds into a local supply of berries or herbs, reducing the need to find every plant in the wild.
Food and wildlife
Berries and Mushrooms
Foraged plants can supplement carried food during travel and make use of clearings you pass on the way to objectives.
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