diff --git a/scenes/maps/testmap.tscn b/scenes/maps/testmap.tscn
new file mode 100644
index 0000000..94448c1
--- /dev/null
+++ b/scenes/maps/testmap.tscn
@@ -0,0 +1,3 @@
+[gd_scene format=3 uid="uid://cbyee7drds7qu"]
+
+[node name="Testmap" type="Node3D"]
diff --git a/scenes/ui/lobby.tscn b/scenes/ui/lobby.tscn
index fa09c10..91aac64 100644
--- a/scenes/ui/lobby.tscn
+++ b/scenes/ui/lobby.tscn
@@ -18,3 +18,18 @@ anchor_right = 1.0
 anchor_bottom = 1.0
 grow_horizontal = 2
 grow_vertical = 2
+
+[node name="StartButton" type="Button" parent="."]
+visible = false
+layout_mode = 1
+anchors_preset = 3
+anchor_left = 1.0
+anchor_top = 1.0
+anchor_right = 1.0
+anchor_bottom = 1.0
+offset_left = -96.0
+offset_top = -31.0
+grow_horizontal = 0
+grow_vertical = 0
+disabled = true
+text = "Start Game"
diff --git a/scripts/ui/lobby.gd b/scripts/ui/lobby.gd
index a801d88..2eaa977 100644
--- a/scripts/ui/lobby.gd
+++ b/scripts/ui/lobby.gd
@@ -5,12 +5,23 @@ var label: PackedScene = preload("res://scenes/ui/elements/name_label.tscn")
 func _ready() -> void:
 	if Networking.playerlist_changed.connect(_on_playerlist_changed) != OK:
 		Log.error("FAILED to connect the playerlist_changed signal to _on_playerlist_changed!", "Internal Error: Failed to connect signal.")
+	var start_button: Button = $StartButton
+	if start_button.pressed.connect(_on_start_button_pressed) != OK:
+			Log.error("FAILED to connect the pressed signal to _on_start_button_pressed!", "Internal Error: Failed to connect signal.")
 	_on_playerlist_changed()
 	
 func _on_playerlist_changed() -> void:
+	if Networking.isManager:
+		var start_button: Button = $StartButton
+		start_button.show()
+		start_button.disabled = false
 	for child: Label in $NameContainer.get_children():
 			child.free()
 	for peer: String in Networking.peers:
 		var instance: Label = label.instantiate()
 		instance.text = peer
 		$NameContainer.add_child(instance)
+
+
+func _on_start_button_pressed() -> void:
+	Networking.send_rpcs("start_game", ["hello", " world"])
diff --git a/scripts/utils/networking.gd b/scripts/utils/networking.gd
index 2eaceda..7fd3553 100644
--- a/scripts/utils/networking.gd
+++ b/scripts/utils/networking.gd
@@ -236,3 +236,19 @@ func send_playerlist(status: int, newPeers: Dictionary) -> void:
 				Log.warning("Name %s is already taken in the room!" % Game.username)
 			3:
 				Log.warning("Sent a playerlist request to a regular peer, not the host!")
+
+## General Game RPCs
+
+# Does RPCs to all clients.
+func send_rpcs(method: String, args: Array) -> void:
+	for peer: String in peers:
+		var id: int = peers[peer]
+		if rpc_id(id, method, args) != OK:
+			Log.warning("Failed to send the rpc %s to %d." % [method, id])
+
+# Starts the game.
+@rpc("any_peer", "call_remote", "reliable")
+func start_game() -> void:
+	if multiplayer.get_remote_sender_id() == managerID:
+		if !get_tree().change_scene_to_file("res://scenes/maps/testmap.tscn"):
+			Log.warning("Couldn't load the map!")