diff --git a/ArcFormats/Ankh/ImageGPD.cs b/ArcFormats/Ankh/ImageGPD.cs
new file mode 100644
index 00000000..60a33da4
--- /dev/null
+++ b/ArcFormats/Ankh/ImageGPD.cs
@@ -0,0 +1,69 @@
+//! \file       ImageGPD.cs
+//! \date       2018 Aug 25
+//! \brief      Ankh image 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;
+using GameRes.Compression;
+
+namespace GameRes.Formats.Ankh
+{
+    [Export(typeof(ImageFormat))]
+    public class GpdFormat : ImageFormat
+    {
+        public override string         Tag { get { return "GPD/ANKH"; } }
+        public override string Description { get { return "Ankh image format"; } }
+        public override uint     Signature { get { return 0x647067; } } // 'gpd'
+
+        public override ImageMetaData ReadMetaData (IBinaryStream file)
+        {
+            var header = file.ReadHeader (0x10);
+            if (header.ToInt32 (12) != 0)
+                return null;
+            return new ImageMetaData {
+                Width  = header.ToUInt32 (4),
+                Height = header.ToUInt32 (8),
+                BPP    = 24,
+            };
+        }
+
+        public override ImageData Read (IBinaryStream file, ImageMetaData info)
+        {
+            int stride = (int)info.Width * 3;
+            file.Position = 0x10;
+            using (var lzss = new LzssStream (file.AsStream, LzssMode.Decompress, true))
+            {
+                var pixels = new byte[stride * (int)info.Height];
+                lzss.Read (pixels, 0, pixels.Length);
+                return ImageData.CreateFlipped (info, PixelFormats.Bgr24, null, pixels, stride);
+            }
+        }
+
+        public override void Write (Stream file, ImageData image)
+        {
+            throw new System.NotImplementedException ("GpdFormat.Write not implemented");
+        }
+    }
+}
diff --git a/ArcFormats/Ankh/ImageMSK.cs b/ArcFormats/Ankh/ImageMSK.cs
new file mode 100644
index 00000000..5ba58532
--- /dev/null
+++ b/ArcFormats/Ankh/ImageMSK.cs
@@ -0,0 +1,68 @@
+//! \file       ImageMSK.cs
+//! \date       2018 Aug 25
+//! \brief      Ankh bitmap 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;
+using GameRes.Compression;
+
+namespace GameRes.Formats.Ankh
+{
+    [Export(typeof(ImageFormat))]
+    public class MskFormat : ImageFormat
+    {
+        public override string         Tag { get { return "MSK/ANKH"; } }
+        public override string Description { get { return "Ankh bitmap format"; } }
+        public override uint     Signature { get { return 0x6B736D; } } // 'msk'
+
+        public override ImageMetaData ReadMetaData (IBinaryStream file)
+        {
+            var header = file.ReadHeader (0x10);
+            if (header.ToInt32 (12) != 0)
+                return null;
+            return new ImageMetaData {
+                Width  = header.ToUInt32 (4),
+                Height = header.ToUInt32 (8),
+                BPP    = 8,
+            };
+        }
+
+        public override ImageData Read (IBinaryStream file, ImageMetaData info)
+        {
+            file.Position = 0x10;
+            using (var lzss = new LzssStream (file.AsStream, LzssMode.Decompress, true))
+            {
+                var pixels = new byte[info.Width * info.Height];
+                lzss.Read (pixels, 0, pixels.Length);
+                return ImageData.CreateFlipped (info, PixelFormats.Gray8, null, pixels, (int)info.Width);
+            }
+        }
+
+        public override void Write (Stream file, ImageData image)
+        {
+            throw new System.NotImplementedException ("MskFormat.Write not implemented");
+        }
+    }
+}