diff --git a/ArcFormats/FC01/ImageWM2.cs b/ArcFormats/FC01/ImageWM2.cs
new file mode 100644
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+++ b/ArcFormats/FC01/ImageWM2.cs
@@ -0,0 +1,79 @@
+//! \file       ImageWM2.cs
+//! \date       2018 Apr 07
+//! \brief      F&C Co. bitmap mask format.
+//
+// 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.ComponentModel.Composition;
+using System.IO;
+using System.Windows.Media;
+
+namespace GameRes.Formats.FC01
+{
+    [Export(typeof(ImageFormat))]
+    public class Wm2Format : ImageFormat
+    {
+        public override string         Tag { get { return "WM2"; } }
+        public override string Description { get { return "F&C Co. bitmap mask"; } }
+        public override uint     Signature { get { return 0x302E32; } } // '2.0'
+
+        public override ImageMetaData ReadMetaData (IBinaryStream file)
+        {
+            var header = file.ReadHeader (12);
+            uint width  = header.ToUInt32 (4);
+            uint height = header.ToUInt32 (8);
+            if (0 == width || width > 0x8000 || 0 == height || height > 0x8000)
+                return null;
+            return new ImageMetaData { Width = width, Height = height, BPP = 8 };
+        }
+
+        public override ImageData Read (IBinaryStream file, ImageMetaData info)
+        {
+            var output = new byte[info.Width * info.Height];
+            var table = new int[info.Height * 4];
+            file.Position = 12;
+            for (int i = 0; i < table.Length; ++i)
+                table[i] = file.ReadInt32();
+            int stride = (int)info.Width;
+            int height = (int)info.Height;
+            int row = 0;
+            int data_pos = height * 16 + 12;
+            int dst = 0;
+            for (int y = 0; y < height; ++y)
+            {
+                if (table[row] != 0)
+                {
+                    file.Position = table[row+3] + data_pos;
+                    file.Read (output, dst+table[row+1], table[row+2]);
+                }
+                row += 4;
+                dst += stride;
+            }
+            return ImageData.Create (info, PixelFormats.Gray8, null, output);
+        }
+
+        public override void Write (Stream file, ImageData image)
+        {
+            throw new System.NotImplementedException ("Wm2Format.Write not implemented");
+        }
+    }
+}