LD56 is over. This is the game.

player/player_camera.gd

@@ -0,0 +1,30 @@
+class_name PlayerCamera extends Camera3D
+
+var move_speed : float = 10
+var tilt_speed : float = 2
+
+func _process(delta: float) -> void:
+	process_movement(delta)
+	process_camera_tilt(delta)
+
+func process_movement(delta:float) -> void:
+	var input_vector := Vector3.ZERO;
+	input_vector += -global_basis.z * Input.get_axis("move_back", "move_forward")
+	input_vector += global_basis.x * Input.get_axis("move_left", "move_right")
+	input_vector.y = 0;
+	input_vector += Vector3.UP * Input.get_axis("move_down", "move_up")
+	
+	var speed_scaler := lerpf(0.3, 3, global_position.y/20)
+	global_position += input_vector * move_speed * speed_scaler * delta
+	position.y = clampf(position.y, 2, 20) 
+
+func process_camera_tilt(delta: float) -> void:	
+	if Input.is_mouse_button_pressed(MOUSE_BUTTON_MIDDLE):
+		Input.mouse_mode = Input.MOUSE_MODE_CAPTURED
+		var mouse_move := -Input.get_last_mouse_velocity()
+		mouse_move /= get_viewport().size as Vector2
+		mouse_move *= tilt_speed * delta
+		rotation.y = rotation.y + mouse_move.x
+		rotation.x =clampf(rotation.x + mouse_move.y, -PI/2, 0)
+	else:
+		Input.mouse_mode = Input.MOUSE_MODE_VISIBLE