diff --git a/Emulator/SPD.File.Emulator/Sprite/SpriteBuilderFactory.cs b/Emulator/SPD.File.Emulator/Sprite/SpriteBuilderFactory.cs
index 08e378c..e349f99 100644
--- a/Emulator/SPD.File.Emulator/Sprite/SpriteBuilderFactory.cs
+++ b/Emulator/SPD.File.Emulator/Sprite/SpriteBuilderFactory.cs
@@ -9,6 +9,7 @@ namespace SPD.File.Emulator.Sprite;
 public class SpriteBuilderFactory
 {
     internal List<RouteGroupTuple> _routeGroupTuples = new();
+    internal List<RouteFileTuple> _routeFileTuples = new();
     private readonly Logger _log;
 
     /// <summary>
@@ -34,7 +35,7 @@ public void AddFromFolders(string redirectorFolder)
         foreach (var group in groups)
         {
             if (group.Files.Length <= 0)
-                return;
+                continue;
 
             var route = Route.GetRoute(redirectorFolder, group.Directory.FullPath);
 
@@ -46,6 +47,12 @@ public void AddFromFolders(string redirectorFolder)
         }
     }
 
+    public void AddFile(string file, string route)
+    {
+        _log.Info($"[SpdBuilderFactory] Added file {file} with route {route}");
+        _routeFileTuples.Add(new RouteFileTuple { FilePath = file, Route = new Route(route) });
+    }
+
     /// <summary>
     /// Tries to create an SPD from a given route.
     /// </summary>
@@ -56,6 +63,7 @@ public bool TryCreateFromPath(string path, out SpriteBuilder? builder)
     {
         builder = default;
         var route = new Route(path);
+
         foreach (var group in _routeGroupTuples)
         {
             if (!route.Matches(group.Route.FullPath))
@@ -68,7 +76,7 @@ public bool TryCreateFromPath(string path, out SpriteBuilder? builder)
             else if (routeExtension == ".spr")
                 builder ??= new SprBuilder(_log);
             else
-               return false;
+                return false;
 
             // Add files to builder.
             var dir = group.Files.Directory.FullPath;
@@ -78,6 +86,23 @@ public bool TryCreateFromPath(string path, out SpriteBuilder? builder)
             }
         }
 
+        foreach (var group in _routeFileTuples)
+        {
+            if (!route.Matches(group.Route.FullPath))
+                continue;
+
+            string routeExtension = Path.GetExtension(route.FullPath).ToLower();
+            // Make builder if not made.
+            if (routeExtension == ".spd")
+                builder ??= new SpdBuilder(_log);
+            else if (routeExtension == ".spr")
+                builder ??= new SprBuilder(_log);
+            else
+                return false;
+
+            builder.AddOrReplaceFile(group.FilePath);
+        }
+
         return builder != null;
     }
 }
@@ -93,4 +118,17 @@ internal struct RouteGroupTuple
     /// Files bound by this route.
     /// </summary>
     public DirectoryFilesGroup Files;
+}
+
+internal struct RouteFileTuple
+{
+    /// <summary>
+    /// Route associated with this tuple.
+    /// </summary>
+    public Route Route;
+
+    /// <summary>
+    /// Path to the file bound by this route.
+    /// </summary>
+    public string FilePath;
 }
\ No newline at end of file