Item codex
Fiber
5 for Bag Expansion I and multiple crafting chains.
rawEarly-game relevance
What to do with it
Fiber looks common, but the first five pieces have a specific job: Bag Expansion I. Protect that amount before treating later stacks as spare material.
At a glance
Get itGathered from early vegetation/foraging nodes.
Process / recipeUsed directly or processed in later recipes
Main uses5 for Bag Expansion I and multiple crafting chains.
Keep or sell?Protect the first 5 for Bag Expansion I.
First reserveKeep 5 Fiber for Bag Expansion I.
GatherCollect from early vegetation and foraging nodes during normal routes.
After upgradeCheck the next live recipe before selling a large stack.
Common mistake
Selling a small stack because it is easy to replace, then delaying the Bag upgrade when every slot matters.
In-game reference
Last checked against the Early Access build: July 8, 2026
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WalkthroughHow to Expand Your BagOpen Bag → Expand, gather 5 Fiber, 5 Softwood and 5 Stone for the first five-slot upgrade, then build Storage Box I for overflow.Open page →WalkthroughBest Items to Keep in the Early GameProtect the materials that block early quests: Softwood, Fiber, Stone, Copper, processed parts, request-board items and first-time collection fin…Open page →Item indexStarsand Island Items and MaterialsLook up early Starsand Island materials and equipment, including where they come from, which processor they need and whether to keep or sell them…Open page →