diff --git a/items/metal.tres b/items/metal.tres
new file mode 100644
index 0000000..06782b9
--- /dev/null
+++ b/items/metal.tres
@@ -0,0 +1,10 @@
+[gd_resource type="Resource" script_class="Item" load_steps=3 format=3 uid="uid://dbkxys3mr5u80"]
+
+[ext_resource type="Script" uid="uid://kcdpck5ufgcc" path="res://scripts/item.gd" id="1_a88ho"]
+[ext_resource type="Texture2D" uid="uid://xpm6i82tui2o" path="res://assets/images/watchtower.png" id="1_jdpiu"]
+
+[resource]
+script = ExtResource("1_a88ho")
+icon = ExtResource("1_jdpiu")
+name = "Metal"
+metadata/_custom_type_script = "uid://kcdpck5ufgcc"
diff --git a/objects/buildings/building.tscn b/objects/buildings/building.tscn
new file mode 100644
index 0000000..a0095ab
--- /dev/null
+++ b/objects/buildings/building.tscn
@@ -0,0 +1,28 @@
+[gd_scene load_steps=4 format=3 uid="uid://b1fnsl3k1mo5c"]
+
+[ext_resource type="Script" uid="uid://dvgo3kpjr2mmj" path="res://scripts/building_components/building.gd" id="1_k07no"]
+
+[sub_resource type="BoxMesh" id="BoxMesh_cee1v"]
+size = Vector3(2, 2, 2)
+
+[sub_resource type="BoxShape3D" id="BoxShape3D_k07no"]
+size = Vector3(2, 2, 2)
+
+[node name="Building" type="StaticBody3D"]
+script = ExtResource("1_k07no")
+
+[node name="MeshInstance3D" type="MeshInstance3D" parent="."]
+transform = Transform3D(1, 0, 0, 0, 1, 0, 0, 0, 1, 0, 1, 0)
+mesh = SubResource("BoxMesh_cee1v")
+
+[node name="CollisionShape3D" type="CollisionShape3D" parent="."]
+transform = Transform3D(1, 0, 0, 0, 1, 0, 0, 0, 1, 0, 1, 0)
+shape = SubResource("BoxShape3D_k07no")
+
+[node name="NavigationObstacle3D" type="NavigationObstacle3D" parent="."]
+transform = Transform3D(1, 0, 0, 0, 1, 0, 0, 0, 1, 0, 1, 0)
+radius = 1.0
+vertices = PackedVector3Array(-1, 0, -1, 1, 0, -1, 1, 0, 1, -1, 0, 1)
+affect_navigation_mesh = true
+carve_navigation_mesh = true
+use_3d_avoidance = true
diff --git a/objects/buildings/processor.tscn b/objects/buildings/processor.tscn
new file mode 100644
index 0000000..01f6d04
--- /dev/null
+++ b/objects/buildings/processor.tscn
@@ -0,0 +1,25 @@
+[gd_scene load_steps=6 format=3 uid="uid://c6e1nifka3h4v"]
+
+[ext_resource type="PackedScene" uid="uid://b1fnsl3k1mo5c" path="res://objects/buildings/building.tscn" id="1_hxugg"]
+[ext_resource type="Script" uid="uid://bshiyw2k3op02" path="res://scripts/building_components/consumer.gd" id="4_dx8de"]
+[ext_resource type="Script" uid="uid://c4fquatkjmsgu" path="res://scripts/building_components/producer.gd" id="5_p3dou"]
+
+[sub_resource type="StandardMaterial3D" id="StandardMaterial3D_evfwj"]
+albedo_color = Color(0.023159, 1, 0, 1)
+
+[sub_resource type="BoxMesh" id="BoxMesh_3h7kv"]
+material = SubResource("StandardMaterial3D_evfwj")
+size = Vector3(2, 2, 2)
+
+[node name="Processor" instance=ExtResource("1_hxugg")]
+
+[node name="MeshInstance3D" parent="." index="0"]
+mesh = SubResource("BoxMesh_3h7kv")
+
+[node name="Consumer" type="Node" parent="." index="3"]
+script = ExtResource("4_dx8de")
+metadata/_custom_type_script = "uid://bshiyw2k3op02"
+
+[node name="Producer" type="Node" parent="." index="4"]
+script = ExtResource("5_p3dou")
+metadata/_custom_type_script = "uid://c4fquatkjmsgu"
diff --git a/scripts/building_components/building.gd b/scripts/building_components/building.gd
new file mode 100644
index 0000000..4416aee
--- /dev/null
+++ b/scripts/building_components/building.gd
@@ -0,0 +1,20 @@
+extends Node
+class_name Building
+
+@export var max_hp: int = 100
+
+enum BuildState {
+	UNPLACED,
+	BUILDING,
+	READY,
+	DESTROYED
+}
+
+var hp: int = max_hp
+
+var build_state: BuildState = BuildState.BUILDING:
+	set(state):
+		build_state = state
+
+func is_functional() -> bool:
+	return build_state == BuildState.READY
diff --git a/scripts/building_components/building.gd.uid b/scripts/building_components/building.gd.uid
new file mode 100644
index 0000000..c189090
--- /dev/null
+++ b/scripts/building_components/building.gd.uid
@@ -0,0 +1 @@
+uid://dvgo3kpjr2mmj
diff --git a/scripts/building_components/consumer.gd b/scripts/building_components/consumer.gd
new file mode 100644
index 0000000..1a55071
--- /dev/null
+++ b/scripts/building_components/consumer.gd
@@ -0,0 +1,42 @@
+extends Node
+class_name Consumer
+signal item_added(item: Item)
+
+@export var accepted_items: Array[Item] = []
+@export var storage_size: int = 4
+@export var max_inputs: int = 1
+
+var storage_total: int = 0
+var storage: Dictionary[Item, int] = {}
+
+func can_accept_item(item: Item) -> bool:
+	return (storage_total < storage_size) and (accepted_items.has(item) or accepted_items.is_empty())
+	
+func offer_item(item: Item) -> bool:
+	if !can_accept_item(item):
+		return false
+	storage_total += 1
+	var old_count: int = storage.get(item, 0)
+	storage.set(item, old_count + 1)
+	item_added.emit(item)
+	return true
+	
+func check_storage_for_item(item: Item) -> bool:
+	return check_storage_for_items({item:1})
+	
+func check_storage_for_items(items: Dictionary[Item, int]) -> bool:
+	for item in items.keys():
+		if storage.get(item, 0) < items[item]:
+			return false
+	return true
+	
+func take_item_from_storage(item: Item) -> bool:
+	return take_items_from_storage({item: 1})
+	
+func take_items_from_storage(items: Dictionary[Item, int]) -> bool:
+	if !check_storage_for_items(items):
+		return false
+	for item in items.keys():
+		var old_count: int = storage.get(item, 0)
+		storage.set(item, old_count - items[item])
+	return true
diff --git a/scripts/building_components/consumer.gd.uid b/scripts/building_components/consumer.gd.uid
new file mode 100644
index 0000000..43e05c3
--- /dev/null
+++ b/scripts/building_components/consumer.gd.uid
@@ -0,0 +1 @@
+uid://bshiyw2k3op02
diff --git a/scripts/building_components/producer.gd b/scripts/building_components/producer.gd
new file mode 100644
index 0000000..3722583
--- /dev/null
+++ b/scripts/building_components/producer.gd
@@ -0,0 +1,29 @@
+extends Node
+class_name Producer
+
+@export var output_period: float = 0.1
+@export var max_outputs: int = 1
+
+var consumers: Array[Consumer]
+var next_consumer_idx: int = 0
+#var output_timer: float = 0.0
+#var output_item: Item
+
+#func _process(delta: float) -> void:
+	#output_timer += delta
+	#if output_timer >= output_period:
+		#output_timer -= output_period
+		#output()
+		
+func send_item(item: Item) -> bool:
+	if consumers.is_empty():
+		return false
+	next_consumer_idx += 1
+	if next_consumer_idx >= consumers.size():
+		next_consumer_idx = 0
+	
+	var consumer: Consumer = consumers[next_consumer_idx]
+	var accepted: bool = consumer.offer_item(item)
+	return accepted
+		
+	
diff --git a/scripts/building_components/producer.gd.uid b/scripts/building_components/producer.gd.uid
new file mode 100644
index 0000000..e0d6955
--- /dev/null
+++ b/scripts/building_components/producer.gd.uid
@@ -0,0 +1 @@
+uid://c4fquatkjmsgu
diff --git a/scripts/buildings/conveyor.gd b/scripts/buildings/conveyor.gd
new file mode 100644
index 0000000..a6bc54d
--- /dev/null
+++ b/scripts/buildings/conveyor.gd
@@ -0,0 +1,58 @@
+extends Path3D
+
+@export var speed: float = 1.0
+@export var item_offset: Vector3 = Vector3(0,1,0)
+	
+var transported_items: Dictionary[Item, PackedFloat64Array] = {}
+
+@onready var producer: Producer = $Producer
+@onready var multimesh: MultiMeshInstance3D = $MultiMeshInstance3D
+
+var test_timer: float = 0
+@onready var test_item: Item = load("res://items/metal.tres")
+
+func _process(delta: float) -> void:
+	test_timer += delta
+	if test_timer >= 2.0:
+		test_timer -= 2.0
+		add_item(test_item)
+	
+	var belt_moving: bool = check_items_at_end()
+	if belt_moving:
+		for transported_item_type in transported_items.keys():
+			var offsets: PackedFloat64Array = transported_items[transported_item_type]
+			multimesh.multimesh.instance_count = offsets.size()
+			for i in range(offsets.size()):
+				offsets[i] += (delta * speed)
+				position_item(i, transported_item_type, offsets[i])
+
+func add_item(item: Item) -> void:
+	var offsets: PackedFloat64Array
+	if transported_items.has(item):
+		offsets = transported_items[item]
+	else:
+		offsets = []
+	offsets.append(0.0)
+	transported_items[item] = offsets
+
+func check_items_at_end() -> bool:
+	var length: float = curve.get_baked_length()
+	var belt_moving: bool = true
+	for transported_item_type in transported_items.keys():
+		var offsets: PackedFloat64Array = transported_items[transported_item_type]
+		var to_delete: Array[int] = []
+		for i in range(offsets.size()):
+			if offsets[i] >= length:
+				var sent: bool = producer.send_item(transported_item_type)
+				if !sent:
+					belt_moving = false
+				else:
+					to_delete.append(i)
+		for d in to_delete:
+			offsets.remove_at(d)
+	return belt_moving
+		
+func position_item(instance: int, item: Item, offset: float) -> void:
+	var trans: Transform3D = curve.sample_baked_with_rotation(offset).translated_local(item_offset)
+	multimesh.multimesh.set_instance_transform(instance, trans)
+	
diff --git a/scripts/buildings/conveyor.gd.uid b/scripts/buildings/conveyor.gd.uid
new file mode 100644
index 0000000..4fdbdfd
--- /dev/null
+++ b/scripts/buildings/conveyor.gd.uid
@@ -0,0 +1 @@
+uid://cnoyykkcidp1d
diff --git a/scripts/buildings/processor.gd b/scripts/buildings/processor.gd
new file mode 100644
index 0000000..105e3be
--- /dev/null
+++ b/scripts/buildings/processor.gd
@@ -0,0 +1,24 @@
+extends Building
+
+@export var ingredients: Dictionary[Item, int] = {}
+@export var process_time: float = 1.0
+@export var created_item: Item
+
+var process_timer: float = 0.0
+var processing: bool = false
+
+func _process(delta: float) -> void:
+	if is_functional():
+		if !processing:
+			processing = consume_ingredients()
+		if processing:
+			process_timer += delta
+			if process_timer >= process_time:
+				process_timer -= process_time
+				produce_item()
+			
+func consume_ingredients() -> bool:
+	return $Consumer.take_items_from_storage(ingredients)
+
+func produce_item() -> void:
+	$Producer.set_output_item(created_item)
diff --git a/scripts/buildings/processor.gd.uid b/scripts/buildings/processor.gd.uid
new file mode 100644
index 0000000..f6f5c89
--- /dev/null
+++ b/scripts/buildings/processor.gd.uid
@@ -0,0 +1 @@
+uid://c3bqfgoof2c83
diff --git a/scripts/item.gd b/scripts/item.gd
new file mode 100644
index 0000000..9e8f093
--- /dev/null
+++ b/scripts/item.gd
@@ -0,0 +1,6 @@
+extends Resource
+class_name Item
+
+@export var icon: Texture2D
+@export var name: String
+@export var model: Mesh
diff --git a/scripts/item.gd.uid b/scripts/item.gd.uid
new file mode 100644
index 0000000..7461dd2
--- /dev/null
+++ b/scripts/item.gd.uid
@@ -0,0 +1 @@
+uid://kcdpck5ufgcc