diff --git a/src/world/generation/feature/arcology/arcology.tscn b/src/world/generation/feature/arcology/arcology.tscn
new file mode 100644
index 0000000..f365e27
--- /dev/null
+++ b/src/world/generation/feature/arcology/arcology.tscn
@@ -0,0 +1,79 @@
+[gd_scene load_steps=5 format=3 uid="uid://nllc8ljmn37g"]
+
+[ext_resource type="Script" uid="uid://drk82eeqk2mjs" path="res://src/world/generation/feature/generation_feature.gd" id="1_ek7o7"]
+
+[sub_resource type="PlaneMesh" id="PlaneMesh_pko82"]
+size = Vector2(100000, 100000)
+
+[sub_resource type="ConcavePolygonShape3D" id="ConcavePolygonShape3D_ek7o7"]
+data = PackedVector3Array(50000, 0, 50000, -50000, 0, 50000, 50000, 0, -50000, -50000, 0, 50000, -50000, 0, -50000, 50000, 0, -50000)
+
+[sub_resource type="BoxShape3D" id="BoxShape3D_pko82"]
+size = Vector3(200000, 200000, 200000)
+
+[node name="Arcology" type="Node3D"]
+script = ExtResource("1_ek7o7")
+metadata/_custom_type_script = "uid://drk82eeqk2mjs"
+
+[node name="InnerPyramid" type="CSGCylinder3D" parent="."]
+transform = Transform3D(0.70710677, 0, 0.70710677, 0, 1, 0, -0.70710677, 0, 0.70710677, 50000, 30000, 50000)
+use_collision = true
+radius = 60000.0
+height = 60000.0
+sides = 4
+cone = true
+smooth_faces = false
+
+[node name="OuterPyramid" type="CSGCylinder3D" parent="InnerPyramid"]
+transform = Transform3D(1, 0, 0, 0, 1, 0, 0, 0, 1, 0, 5000, 0)
+radius = 70000.0
+height = 70000.0
+sides = 4
+cone = true
+smooth_faces = false
+
+[node name="TopCutoff" type="CSGBox3D" parent="InnerPyramid/OuterPyramid"]
+transform = Transform3D(0.70710677, 0, -0.70710677, 0, 1, 0, 0.70710677, 0, 0.70710677, 0, 30000, 0)
+operation = 2
+size = Vector3(100000, 80000, 100000)
+
+[node name="Slots" type="CSGCombiner3D" parent="InnerPyramid/OuterPyramid"]
+transform = Transform3D(0.70710677, 0, -0.70710677, 0, 1, 0, 0.70710677, 0, 0.70710677, 0, 0, 0)
+operation = 2
+
+[node name="CSGBox3D2" type="CSGBox3D" parent="InnerPyramid/OuterPyramid/Slots"]
+transform = Transform3D(0.99999994, 0, 0, 0, 1, 0, 0, 0, 0.99999994, 0, 0, 0)
+size = Vector3(100000, 71000, 10000)
+
+[node name="CSGBox3D3" type="CSGBox3D" parent="InnerPyramid/OuterPyramid/Slots"]
+transform = Transform3D(0.99999994, 0, 0, 0, 1, 0, 0, 0, 0.99999994, 0, 0, 0)
+size = Vector3(10000, 71000, 100000)
+
+[node name="Slots" type="CSGCombiner3D" parent="InnerPyramid"]
+transform = Transform3D(0.70710677, 0, -0.70710677, 0, 1, 0, 0.70710677, 0, 0.70710677, 0, -18000, 0)
+operation = 2
+
+[node name="CSGBox3D2" type="CSGBox3D" parent="InnerPyramid/Slots"]
+transform = Transform3D(0.99999994, 0, 0, 0, 1, 0, 0, 0, 0.99999994, 0, 0, 0)
+size = Vector3(100000, 30000, 10000)
+
+[node name="CSGBox3D3" type="CSGBox3D" parent="InnerPyramid/Slots"]
+transform = Transform3D(0.99999994, 0, 0, 0, 1, 0, 0, 0, 0.99999994, 0, 0, 0)
+size = Vector3(10000, 30000, 100000)
+
+[node name="WorldFloor" type="MeshInstance3D" parent="."]
+transform = Transform3D(1, 0, 0, 0, 1, 0, 0, 0, 1, 50000, 0, 50000)
+mesh = SubResource("PlaneMesh_pko82")
+
+[node name="StaticBody3D" type="StaticBody3D" parent="WorldFloor"]
+
+[node name="CollisionShape3D" type="CollisionShape3D" parent="WorldFloor/StaticBody3D"]
+shape = SubResource("ConcavePolygonShape3D_ek7o7")
+
+[node name="HighDetailArea" type="Area3D" parent="."]
+transform = Transform3D(1, 0, 0, 0, 1, 0, 0, 0, 1, 50000, 0, 50000)
+collision_layer = 0
+collision_mask = 2
+
+[node name="CollisionShape3D" type="CollisionShape3D" parent="HighDetailArea"]
+shape = SubResource("BoxShape3D_pko82")
diff --git a/src/world/generation/feature/arcology/empty.tscn b/src/world/generation/feature/arcology/empty.tscn
new file mode 100644
index 0000000..b153c3c
--- /dev/null
+++ b/src/world/generation/feature/arcology/empty.tscn
@@ -0,0 +1,22 @@
+[gd_scene load_steps=4 format=3 uid="uid://dawv6mbpr4d3c"]
+
+[ext_resource type="Script" uid="uid://drk82eeqk2mjs" path="res://src/world/generation/feature/generation_feature.gd" id="1_ydt4o"]
+
+[sub_resource type="PlaneMesh" id="PlaneMesh_ydt4o"]
+size = Vector2(100000, 100000)
+
+[sub_resource type="ConcavePolygonShape3D" id="ConcavePolygonShape3D_q70le"]
+data = PackedVector3Array(50000, 0, 50000, -50000, 0, 50000, 50000, 0, -50000, -50000, 0, 50000, -50000, 0, -50000, 50000, 0, -50000)
+
+[node name="Empty" type="Node3D"]
+script = ExtResource("1_ydt4o")
+metadata/_custom_type_script = "uid://drk82eeqk2mjs"
+
+[node name="WorldFloor" type="MeshInstance3D" parent="."]
+transform = Transform3D(1, 0, 0, 0, 1, 0, 0, 0, 1, 50000, 0, 50000)
+mesh = SubResource("PlaneMesh_ydt4o")
+
+[node name="StaticBody3D" type="StaticBody3D" parent="WorldFloor"]
+
+[node name="CollisionShape3D" type="CollisionShape3D" parent="WorldFloor/StaticBody3D"]
+shape = SubResource("ConcavePolygonShape3D_q70le")
diff --git a/src/world/generation/layer/arcology_grid_layer/arcology_grid_layer.gd b/src/world/generation/layer/arcology_grid_layer/arcology_grid_layer.gd
new file mode 100644
index 0000000..0d4344d
--- /dev/null
+++ b/src/world/generation/layer/arcology_grid_layer/arcology_grid_layer.gd
@@ -0,0 +1,53 @@
+class_name ArcologyGridLayer extends GenerationLayer
+## Grid with each cell possibly generating an arcology
+
+const GRID_SIZE := Vector2(100000, 100000)
+
+@export var arcology_feature_scene: PackedScene
+@export var empty_feature_scene: PackedScene
+
+@export var arcology_probability := 0.2
+
+var features: Dictionary[Vector2, GenerationFeature] = {}
+
+
+func probe() -> void:
+	var world_pos := WorldGenManager.get_generation_point()
+	probe_radius(world_pos, WorldGenManager.low_detail_radius)
+	# TODO high-detail & medium-detail probes
+
+
+func probe_radius(center: Vector3, radius: float) -> void:
+	var rad_diff := Vector3(radius, 0, radius)
+	var grid_low := world_to_local(center - rad_diff).floor()
+	var grid_high := world_to_local(center + rad_diff).floor()
+	for i in range(grid_low.x, grid_high.x + 1):
+		for j in range(grid_low.y, grid_high.y + 1):
+			probe_grid(Vector2(i, j))
+
+
+func probe_grid(grid_pos: Vector2) -> void:
+	# Generate if needed
+	if grid_pos not in features:
+		var feature: GenerationFeature
+		var sample := absf(WorldGenManager.noise.get_noise_2dv(grid_pos))
+		print_debug("Sampled ", sample, " at ", grid_pos)
+		if sample < arcology_probability:
+			print_debug("Generating arcology at ", grid_pos)
+			feature = arcology_feature_scene.instantiate()
+		else:
+			feature = empty_feature_scene.instantiate()
+		add_child(feature)
+		feature.global_position = local_to_world(grid_pos)
+		features[grid_pos] = feature
+	# Probe feature
+	features[grid_pos].probe()
+
+
+func local_to_world(local_pos: Vector2) -> Vector3:
+	return global_position + Vector3(local_pos.x * GRID_SIZE.x, 0, local_pos.y * GRID_SIZE.y)
+
+
+func world_to_local(world_pos: Vector3) -> Vector2:
+	var rel_pos := world_pos - global_position
+	return Vector2(rel_pos.x / GRID_SIZE.x, rel_pos.z / GRID_SIZE.y)
diff --git a/src/world/generation/layer/arcology_grid_layer/arcology_grid_layer.gd.uid b/src/world/generation/layer/arcology_grid_layer/arcology_grid_layer.gd.uid
new file mode 100644
index 0000000..1de2a4f
--- /dev/null
+++ b/src/world/generation/layer/arcology_grid_layer/arcology_grid_layer.gd.uid
@@ -0,0 +1 @@
+uid://kp8r23lsylpk
diff --git a/src/world/generation/layer/arcology_grid_layer/arcology_grid_layer.tscn b/src/world/generation/layer/arcology_grid_layer/arcology_grid_layer.tscn
new file mode 100644
index 0000000..98979b8
--- /dev/null
+++ b/src/world/generation/layer/arcology_grid_layer/arcology_grid_layer.tscn
@@ -0,0 +1,11 @@
+[gd_scene load_steps=4 format=3 uid="uid://dlhc1te2ip8vg"]
+
+[ext_resource type="Script" uid="uid://kp8r23lsylpk" path="res://src/world/generation/layer/arcology_grid_layer/arcology_grid_layer.gd" id="1_85eh3"]
+[ext_resource type="PackedScene" uid="uid://nllc8ljmn37g" path="res://src/world/generation/feature/arcology/arcology.tscn" id="2_pxyh5"]
+[ext_resource type="PackedScene" uid="uid://dawv6mbpr4d3c" path="res://src/world/generation/feature/arcology/empty.tscn" id="3_p6bke"]
+
+[node name="ArcologyGridLayer" type="Node3D"]
+script = ExtResource("1_85eh3")
+arcology_feature_scene = ExtResource("2_pxyh5")
+empty_feature_scene = ExtResource("3_p6bke")
+metadata/_custom_type_script = "uid://kp8r23lsylpk"