diff --git a/ArcFormats/ArcFormats.csproj b/ArcFormats/ArcFormats.csproj
index 1e74d1da..579dea49 100644
--- a/ArcFormats/ArcFormats.csproj
+++ b/ArcFormats/ArcFormats.csproj
@@ -651,6 +651,7 @@
     <Compile Include="ArcSAF.cs" />
     <Compile Include="BlackCyc\ArcVPK.cs" />
     <Compile Include="Unity\ArcASSET.cs" />
+    <Compile Include="Unity\ArcSpVM.cs" />
     <Compile Include="Unity\ArcUnityFS.cs" />
     <Compile Include="Unity\Asset.cs" />
     <Compile Include="Unity\AssetReader.cs" />
diff --git a/ArcFormats/Unity/ArcSpVM.cs b/ArcFormats/Unity/ArcSpVM.cs
new file mode 100644
index 00000000..69ae35df
--- /dev/null
+++ b/ArcFormats/Unity/ArcSpVM.cs
@@ -0,0 +1,96 @@
+//! \file       ArcSpVM.cs
+//! \date       2018 May 02
+//! \brief      Unity SpVM resources deserializer.
+//
+// Copyright (C) 2018 by morkt
+//
+// Permission is hereby granted, free of charge, to any person obtaining a copy
+// of this software and associated documentation files (the "Software"), to
+// deal in the Software without restriction, including without limitation the
+// rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
+// sell copies of the Software, and to permit persons to whom the Software is
+// furnished to do so, subject to the following conditions:
+//
+// The above copyright notice and this permission notice shall be included in
+// all copies or substantial portions of the Software.
+//
+// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+// FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
+// IN THE SOFTWARE.
+//
+
+using System;
+using System.Collections.Generic;
+using System.ComponentModel.Composition;
+using System.IO;
+using System.Linq;
+using System.Runtime.Serialization;
+using System.Runtime.Serialization.Formatters.Binary;
+
+namespace GameRes.Formats.Unity
+{
+    [Export(typeof(ArchiveFormat))]
+    public class BytesOpener : ArchiveFormat
+    {
+        public override string         Tag { get { return "BYTES/UNITY"; } }
+        public override string Description { get { return "Unity engine resource archive"; } }
+        public override uint     Signature { get { return 0; } }
+        public override bool  IsHierarchic { get { return false; } }
+        public override bool      CanWrite { get { return false; } }
+
+        public override ArcFile TryOpen (ArcView file)
+        {
+            if (!file.Name.EndsWith ("DAT.bytes", StringComparison.OrdinalIgnoreCase))
+                return null;
+            var inf_name = file.Name.Substring (0, file.Name.Length - "DAT.bytes".Length);
+            inf_name += "INF.bytes";
+            if (!VFS.FileExists (inf_name))
+                return null;
+            using (var inf = VFS.OpenStream (inf_name))
+            {
+                var bin = new BinaryFormatter { Binder = new SpTypeBinder() };
+                var list = bin.Deserialize (inf) as List<LinkerInfo>;
+                if (null == list || 0 == list.Count)
+                    return null;
+                var base_name = Path.GetFileNameWithoutExtension (file.Name);
+                string type = "";
+                if (base_name.StartsWith ("WAVE", StringComparison.OrdinalIgnoreCase))
+                    type = "audio";
+                else if (base_name.StartsWith ("CG", StringComparison.OrdinalIgnoreCase))
+                    type = "image";
+                var dir = list.Select (e => new Entry {
+                    Name = e.name, Type = type, Offset = e.offset, Size = (uint)e.size
+                }).ToList();
+                return new ArcFile (file, this, dir);
+            }
+        }
+    }
+
+    [Serializable]
+    public class LinkerInfo
+    {
+        public string   name { get; set; }
+        public int    offset { get; set; }
+        public int      size { get; set; }
+    }
+
+    internal class SpTypeBinder : SerializationBinder
+    {
+        public override Type BindToType (string assemblyName, string typeName)
+        {
+            if ("Assembly-CSharp" == assemblyName && "SpVM.Library.LinkerInfo" == typeName)
+            {
+                return typeof(LinkerInfo);
+            }
+            if (assemblyName.StartsWith ("mscorlib,") && typeName.StartsWith ("System.Collections.Generic.List`1[[SpVM.Library.LinkerInfo"))
+            {
+                return typeof(List<LinkerInfo>);
+            }
+            return null;
+        }
+    }
+}