100 Days on Chunk Chunk Types and Rarities

Why chunk choice decides your run

In 100 Days on Chunk, your base is a chain of floating biome chunks hanging over the void. You do not unlock a giant open world—you craft new platforms, attach them in daylight, and defend the growing perimeter at night. Chunk types and rarities control what nodes you see, how fast you reach boss recipes, and whether legendary quarry or desert content ever shows up before a wipe.

This guide explains starter versus crafted biomes, common / epic / legendary rarity, and how to expand without creating undefendable Swiss cheese. Pair it with Getting Started for the day/night basics, How to Get Bones and How to Get Artifact for progression mats, and Survive 100 Days for timing inside the full route.

Video guide

Biomes you will actually use

Exact recipe names shift as Freshly Cooked Games tunes the loop, but player routes consistently talk about these roles:

• Starter pad — Tiny first island. Learn void edges, cook, and seal a crude wall before you greed more land.
• Forest / wood-heavy chunks — Fuel early expansion, tools, and further crafts. Lumberjack makes this phase faster.
• Quarry — Ore, chests, and a major Bones path. Legendary quarry outcomes matter for boss prep.
• Desert — Sand routes and Artifact hunting. Legendary desert content feeds later boss gates.
• Boss chunks — Crafted when you have Bones (and later Artifacts). Opening one starts a fight, not a sightseeing tour—see Bosses and Raids.

Treat each craft as a day budget: mats spent + wall length added + night pressure created. Pretty floors that you cannot seal before dusk are liabilities.

Common vs epic vs legendary

Players craft biome chunks and roll rarities. Broadly:

• Common — Reliable workhorses. Clear them fully; they still drop nodes, piles, and chests that keep a run alive.
• Epic — Better density or loot quality. Worth prioritizing walls and a thorough sweep the same day you place them.
• Legendary — High-impact outcomes. Legendary quarry and legendary desert are the ones that most often change mid-to-late plans because they accelerate Bones, Artifacts, and boss readiness.

Rarity is not a reason to spam crafts with empty stomachs and open seams. One legendary pad behind a closed wall beats three legendary pads that leak zombies into your storage.

Expand smart — rules that save runs

1. Daylight only for major crafts and perimeter work. Nights lock ambitious building.
2. Wall the seam the same day you attach a chunk. Unfinished bridges become raid highways.
3. Clear before crafting the next — bone piles, chests, food, and ore left behind are free progress you abandoned.
4. Grow for a goal — wood for more crafts, quarry for Bones/chests, desert for Artifacts—not for screenshot square footage.
5. Respect the void — leave intentional kite paths inside walled floors; random rim scaffolding causes fall deaths.
6. Match class to phase — Explorer learns safely; Lumberjack accelerates forest crafts; Ninja/Vampire help when nights get mean; Engineer lowers crafting friction (see All Classes and the class tier list).

If your food chest is empty, stop expanding. Hunger kills more “almost legendary” runs than rarity RNG does—read Food and Hunger when cooking discipline slips.

How rarities feed Bones and Artifacts

Bones come from bone piles, chunk craft RNG, and quarry chests. More well-cleared chunks raise your odds, but quarry loops are the deliberate farm. Legendary quarry moments are clutch; common quarry still counts if you clear it every day. Details live on How to Get Bones.

Artifacts lean on desert and especially legendary desert content for later bosses. Do not desert-rush while your starter walls are plywood and your hunger bar is flashing. Secure quarry and a food surplus first, then push sand with a plan—How to Get Artifact.

Boss kills drop keys that open chests with day-multiplier totems. Those totems accelerate the day clock and the pressure that comes with it. Chunk rarity gets you to the boss; totem discipline decides whether the win sticks—see Day Multipliers and Totems.

Starter → mid → late expansion blueprint

Early (Days 1–10 mindset)

• Stabilize the starter pad: cook, wall, stash.
• Craft wood-friendly biomes to feed the next recipes.
• Avoid boss chunks until you understand night kite paths.
• Bank any Bones you find; do not vendor panic-drop them on the rim.

Mid (once nights are controllable)

• Prioritize a secured quarry pad and clear chests religiously.
• Keep expanding only as fast as walls and cooked food allow.
• Stage Bones toward your first boss chunk when weapons and repairs are ready.
• Start desert scouting only after food + walls feel boringly stable.

Late (Artifacts, multipliers, Day 100 pressure)

• Hunt legendary desert/quarry outcomes on purpose, not as random spam.
• Protect totems; place lightning rods away from the center of your base so strikes do not nuke the core.
• Re-seal every new legendary seam before celebrating in chat.

Full pacing belongs in Survive 100 Days. Building locks, storage layout, and rod placement also appear in Crafting and Buildings.

Co-op chunk etiquette

Public servers cap at lively chaos. Call crafts before you spend shared mats. Do not place a legendary desert island with no wall plan while teammates are mid-raid. Drop Bones and Artifacts into labeled storage. One selfish vanity expansion can soft-lock fifteen players when the night wave walks through an open seam.

Private servers are kinder for learning rarity value without grief. Either way, treat every craft as a team perimeter decision.

Common mistakes

• Spamming common chunks without sweeping piles or chests
• Ignoring quarry because “forest looks nicer”
• Desert diving for Artifacts with empty food and soft walls
• Crafting a boss chunk the second a legendary recipe appears
• Parking lightning rods in the middle of the main pad
• Expecting promo codes to spawn legendary biomes—codes are inactive as of October 2026 on the Codes Hub

Related reading

• Getting Started
• How to Get Bones
• How to Get Artifact
• Day Multipliers and Totems
• Crafting and Buildings
• Survive 100 Days
• Bosses and Raids
• Guides Hub

Craft for a reason, clear what you place, wall the seam, and let legendary quarry and desert moments accelerate Bones and Artifacts—not your wipe count.