World 9

World 9: Restless Ground

Restless Ground is world 9 of 10, in the expertise tier. Its rule is Tremor. You open it with the Seismic Stake, made from the core of the World 8 boss (Master of Seasons).

At a glance

Tier	Expertise
Rule	Tremor
Station	Terrain Anchor
Boss	Heart of the Terrain (5516 health, 51.6 damage)
Core	Terrain Core
People	Anchored
Way in	Seismic Stake: 1 Seasons Core, 8 Temporal Sand, 4 Season Fragment
Variants	Dozing Ground (calm), Heaving Ground (wild)
Atmosphere	Rust haze: red-brown dust in the air, grit falling off the moving ground
Biomes	Its own, with two lesser biomes at its edges: Flesh Mire (mud floor) and Bare Rock (living rock floor)
Surge	Great Quake
Travelling merchant	Uprooted Anchored
New gear	Quake Pick

Opening the world

• Recipe of the Seismic Stake (Matrix Workbench, after the World 8 boss (Master of Seasons) is defeated): 1 Seasons Core, 8 Temporal Sand, 4 Season Fragment.
• Rite: Drive it into stone or deepslate below y 40. See The way into each world.
• Arrival: a Threshold platform at the centre of your group's parcel. The boss arena is 160 blocks south (positive Z).

Terrain

Amplified terrain of Flesh Stone and Living Rock, with dead bushes.

Block	Type	Drops
Living Rock	Stone (pickaxe)	itself
Flesh Stone	Soft (shovel)	itself
Pulse Vein	Light level 13	itself
Terrain Ore	Ore (pickaxe, correct tool needed)	Terrain Fragment

The rule: Tremor

The terrain itself is hostile: it moves, it closes, and it carries away whatever is not anchored.

The shifting zones

The ground is made of zones of 16 x 16 blocks (one chunk each). Every 60 seconds it heaves.

• 3 seconds before: "The ground is about to move.", the ground cracks and puffs dust around you, and the tremor gauge fills up.
• At the heave, up to three zones within two zones of you move, whole, from a few blocks under their lowest surface up to their highest block:
  • rise by 1 to 3 blocks;
  • sink by 1 to 3 blocks;
  • slide 1 or 2 blocks east, west, north or south (what slides out of one edge comes back on the other, so nothing is lost);
  • close: the chasms of the zone fill up with rock to its usual level.
• Zones that stand high tend to sink and low ones to rise, so the land shifts without drifting away.
• Everything on a moving zone rides it: you, the creatures, the items, and the blocks you placed. You are never crushed: anyone overlapping the ground after a move is lifted to the nearest free spot. Riders feel a short nausea: "The ground carries you along."
• When a build of yours rides the ground, you earn My Base Walks.

What holds the ground

• Terrain Anchor (station): no zone within 16 blocks of it ever moves. Build around one.
• Anchor (consumable): for 10 minutes, the zone under you, and any zone within 4 blocks of you, stays still.
• Grip Boots: while you wear them, the zone under you stays still.
• Anchor Bread: 5 minutes of steady footing, like an Anchor.
• Zones holding a chest, a station or any block entity, an unbreakable block, a boss, the Threshold or the boss stage never move. Very steep zones (more than 96 blocks of relief) stay put too.
• Foundation Eaters eat the block under them unless a Terrain Anchor is within 6 blocks.
• Elytra stop working here until the World 8 boss is beaten.

When you are anchored at the heave: "Your anchor holds the ground still."

Numbers

60 s	between two heaves
3 s	of warning
16 x 16	blocks per zone
3	zones moved around each player per heave
1 to 3	blocks of rise or sink, 1 to 2 of slide
16	blocks of calm around a Terrain Anchor
4	blocks of calm around an anchored player

Creatures

Creatures spawn naturally in the world (regular ones in groups of 1 to 3, swarms in groups of 2 to 4, elites alone and rarer) and from spawners in combat structures. See the Bestiary for all fifty.

Creature	Health	Damage	Traits	Behavior (as coded)	Drops
Crawling Block	331	25.8	-	Invisible and motionless until you come within 3.5 blocks. Does not walk after revealing itself.	Terrain Fragment (60%)
Mimic	287	30.1	-	Invisible and motionless until you come within 3.5 blocks. Does not walk after revealing itself.	Terrain Fragment (60%)
Foundation Eater	309	21.5	-	Every 1.25 s eats the block under it (hardness under 5) unless a Terrain Anchor is within 6 blocks.	Terrain Fragment (60%)
Earth Hand	265	34.4	-	Every 3.5 s at close range: Slowness VII (2.5 s) and Wither I (2 s).	Terrain Fragment (60%)
Walking Column	496	34.4	elite, nesting	Every 4.5 s, when you are within 6 blocks, slams the ground: full damage and a launch to everything within 4 blocks. Nesting: on death splits into 2 smaller copies (60% size, 40% health, 30% faster) that drop nothing.	Terrain Fragment (100%, 1-2), Terrain Heart (5%)

Items

Item	Kind	Rarity (souls)	Effect
Terrain Fragment	resource	rare (10)	Base of World 9 gear.
Terrain Heart	resource	legendary (100)	The Traveller's Matryoshka (World 10).
Anchor	anchor	rare (10)	Calms the ground (radius 4). In code: Right-click: for 10 minutes the ground zone under you and any zone within 4 blocks of you stay still. Consumed.
Grip Boots	boots	epic (30)	No falls from moving ground. In code: Feet slot. The ground zone under you stays still while you wear them.
Seismic Mace	weapon	legendary (100)	Sword-type weapon, about 33 attack damage. Gets a random class when crafted.
Living Rock Helmet	armor	legendary (100)	5 armor, 3.5 toughness, +3 max health
Living Rock Chestplate	armor	legendary (100)	11 armor, 3.5 toughness, +8 max health
Living Rock Leggings	armor	legendary (100)	8 armor, 3.5 toughness, +6 max health
Living Rock Boots	armor	legendary (100)	4 armor, 3.5 toughness, +3 max health
Key of the Last Doll	key	-	The Traveller's Matryoshka (World 10). In code: Dropped by the Heart of the Terrain. Ingredient of the Traveller's Matryoshka.
Anchor Bread	food	common (1)	Steady footing for 5 minutes. Food: 6 hunger, 0.8 saturation, always edible.
Quake Pick	tool	epic (30)	Mines a column of three (sneak for one); used on the ground, a tremor hurts, lifts and slows creatures within 6 blocks (5 s cooldown). Terrain Anchor. See New gear.

The Seismic Stake and the Hidden Doll 9 are listed on the Items page.

Station: Terrain Anchor

Stabilizes the ground (radius 16). Crafted at the Matrix Workbench from 1 Anvil (vanilla), 8 Temporal Sand, 1 Season Fragment (World 8 boss defeated).

How it works: No condition to craft. Once placed, no ground zone within 16 blocks of it ever moves (see World 9), and it stops Foundation Eaters within 6 blocks.

Output	Ingredients	Unlocked
Anchor x4	2 Terrain Fragment, 2 Iron Ingot (vanilla)	Always
Grip Boots	6 Terrain Fragment, 1 Leather Boots (vanilla)	Always
Anchor Bread x2	2 Bread (vanilla), 1 Terrain Fragment	Always
Seismic Mace	8 Terrain Fragment, 1 Stick (vanilla)	Always
Living Rock Helmet	5 Terrain Fragment	Always
Living Rock Chestplate	8 Terrain Fragment	Always
Living Rock Leggings	7 Terrain Fragment	Always
Living Rock Boots	4 Terrain Fragment	Always
Quake Pick	6 Terrain Fragment, 1 Iron Pickaxe (vanilla)	Always

Every weapon, tool and armor piece crafted here gets a random class (see Equipment classes).

Boss: Heart of the Terrain

5516 health, 51.6 damage, phases at 66% and 33% of its health. Summon it with the Arena Altar. It drops Terrain Core, Key of the Last Doll, and every player within 64 blocks gets 100 souls and credit for the kill.

Attack	What the code does
Light: Ground Wave	Frontal strike: 60% damage within 3.2 blocks.
Medium: Living Wall	Ground wave: a 13-block line toward you, 60% damage and a launch.
Signature: Chasm	Chasm at the aimed spot: 100% damage and Slowness V for 3 seconds within 4 blocks.
Final phase: The floor vanishes in sections	Phase change only.

Full mechanics, timings and multiplayer scaling: Bosses. Its animations, attack by attack: Boss attacks.

Structures

Eleven structure types generate in this world (the eleventh since 0.4.0). Each is built procedurally from a layout and the world's palette.

Structure	Role	Size	Rarity	Layout	Frequency	Contents
Walking Tower	combat	large	rare	tower	about one per 42 x 42 chunks	a mob spawner (a regular creature of the world) and a loot chest
Mobile Fortress	combat	large	rare	fort	about one per 42 x 42 chunks	a mob spawner (a regular creature of the world) and a loot chest
Terrain Arena	combat	medium	common	arena	about one per 18 x 18 chunks	a mob spawner (a regular creature of the world) and a loot chest
Moving Ruin	exploration	medium	common	ruin	about one per 18 x 18 chunks	two loot chests
Living Chasm	exploration	large	rare	chasm	about one per 42 x 42 chunks	two loot chests
Mimic Nest	exploration	medium	common	nest	about one per 18 x 18 chunks	two loot chests
Buried Village	story	medium	unique	village	about one per 64 x 64 chunks	a chest with a Journal Page, and a painted frieze
Beating Vein	story	medium	unique	shrine	about one per 64 x 64 chunks	a chest with a Journal Page, and a painted frieze
Anchored Fort	utility	large	rare	fort	about one per 42 x 42 chunks	a member of the world's people
Stable Sanctuary	secret	small	unique	vault	about one per 64 x 64 chunks	a chest with a Journal Page and the world's Hidden Doll
Restless Circle	combat	medium	common	circle	about one per 18 x 18 chunks	mob spawners and a guarded loot chest

World events

While you are here, now and then (see World events):

• Invasion: three waves of the world's creatures, the last led by a glowing warlord, one of its elites; beat it within four minutes for a reward chest and 90 souls each.
• Surge: Great Quake. For two minutes the world's rule bites twice as hard. On top of it: Tremors stagger you every three seconds unless the ground is anchored. Weather it for 15 souls.
• Travelling merchant: Uprooted Anchored, for five minutes: Quake Pick for 10 Terrain Fragment, Shell Shard for 6 Terrain Fragment, Grip Boots for 4 Terrain Fragment (each trade twice).

People: Anchored

Anchorers and surveyors, the only people who can keep a wall standing. They spawn naturally in small numbers and one stands in every utility structure of the world. Prices drop by 10% at karma +25 and rise by 10% at karma -25; at karma -50 or lower they refuse to trade one time in three (see Souls and karma).

They want	They give
Terrain Fragment x3	Anchor x2
Terrain Fragment x5	Anchor Bread x3

Quests

Available once World 9 is open (that is, once the World 8 boss (Master of Seasons) is defeated). See Quests.

Quest	Type	Description	Objective as coded	Reward
Keep Your Footing	Guide	Craft a Terrain Anchor.	Craft Terrain Anchor	16 Anchor
The Ground Plan	Guide	Discover 5 zones.	Carry 16 Terrain Fragment (counted from your inventory, not taken)	50 souls
The Drifting Fort	People	Stabilize 3 walls of the fort.	Carry 3 Anchor (counted from your inventory, not taken)	1 Grip Boots
The Surveyor	People	Measure a living chasm.	Kill 5 Foundation Eater	50 souls
The Vein	Karma	Heal the beating vein (+10) or drain it (-10).	Choose Help (+10 karma) or Betray (-10 karma) in the Journal	80 souls
Unanchored	Challenge	Defeat a Walking Column.	Kill 1 Walking Column	Title: Untethered

Achievements

Achievement	Type	Description	How it unlocks in the code	Reward
Slippery Ground	progress	Open World 9.	Enter World 9.	5 souls
Fixed Point	progress	Craft a Terrain Anchor.	Have Terrain Anchor in your inventory.	5 souls
That Traveler Was You	progress	Defeat the Heart of the Terrain.	Land the killing blow on Heart of the Terrain.	5 souls
Surveyor	explore	Find a living chasm.	Step inside a Living Chasm.	10 souls
Unstable Ground	explore	Visit the 10 structure types.	Step inside all 10 structure types of this world.	10 souls
Displaced Page	explore	Find the 5 Journal pages.	Collect the 5 Journal Pages of this world.	10 souls
Mimic Unmasked	combat	Kill a Mimic.	Land the killing blow on Mimic.	-
Anchorless	combat	Beat the Heart without placing an anchor.	Be near the Heart of the Terrain when it dies without having been anchored (Anchor, Grip Boots or a Terrain Anchor nearby) during the fight.	-
My Base Walks	hidden	See a building moved by the ground.	Be within 64 blocks of a zone that moves while blocks you or other players placed stand on it.	-
Moving Doll	hidden	Find the hidden doll of the world.	Have Hidden Doll 9 in your inventory.	-

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