add game scene

scenes/game.tscn

@@ -0,0 +1,17 @@
+[gd_scene load_steps=2 format=3 uid="uid://dmwkyeq2l7u04"]
+
+[ext_resource type="Script" uid="uid://bvtr6yhlyuv4v" path="res://scenes/game.gd" id="1_uwrxv"]
+
+[node name="Game" type="Node"]
+script = ExtResource("1_uwrxv")
+
+[node name="BackButtonContainer" type="Control" parent="."]
+layout_mode = 3
+anchors_preset = 0
+offset_right = 40.0
+offset_bottom = 40.0
+
+[node name="BackButton" type="Button" parent="BackButtonContainer"]
+offset_right = 45.0
+offset_bottom = 31.0
+text = "back"