Camera isn't clamped to the top of the level, but there's a black rect that hides everything above the top "wall"

Subsurface/Source/Map/Levels/LevelRenderer.cs

@@ -185,6 +185,13 @@ namespace Barotrauma
                 level.BackgroundColor, 0.0f,
                 Vector2.Zero,
                 SpriteEffects.None, 0.0f);
+
+            GUI.DrawRectangle(spriteBatch, new Rectangle((int)(MathUtils.Round(pos.X, 512.0f)), (int)-GameMain.GameScreen.Cam.WorldView.Y, width, (int)(GameMain.GameScreen.Cam.WorldView.Y - level.Size.Y)), Color.Black, true );
+
+            //background.DrawTiled(spriteBatch,
+            //           (backgroundPos.Y < 0) ? new Vector2(0.0f, -backgroundPos.Y) : Vector2.Zero,
+            //           new Vector2(GameMain.GraphicsWidth, 1024 - backgroundPos.Y),
+            //           Vector2.Zero, level.BackgroundColor);
         }
 
 

Subsurface/Source/Screens/GameScreen.cs

@@ -156,7 +156,7 @@ namespace Barotrauma
 
         public override void Draw(double deltaTime, GraphicsDevice graphics, SpriteBatch spriteBatch)
         {
-            cam.UpdateTransform(true, !GameMain.DebugDraw); 
+            cam.UpdateTransform(true); 
             
             DrawMap(graphics, spriteBatch);