diff --git a/Legacy/Legacy.csproj b/Legacy/Legacy.csproj
index ffa5f99e..07c82c51 100644
--- a/Legacy/Legacy.csproj
+++ b/Legacy/Legacy.csproj
@@ -182,7 +182,9 @@
+
+
@@ -203,6 +205,7 @@
+
diff --git a/Legacy/PenguinWorks/ArcDAT.cs b/Legacy/PenguinWorks/ArcDAT.cs
new file mode 100644
index 00000000..60ab905a
--- /dev/null
+++ b/Legacy/PenguinWorks/ArcDAT.cs
@@ -0,0 +1,59 @@
+//! \file ArcDAT.cs
+//! \date 2026-04-14
+//! \brief Penguin Works resource archive.
+//
+// Copyright (C) 2026 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.Collections.Generic;
+using System.ComponentModel.Composition;
+using System.IO;
+
+namespace GameRes.Formats.PenguinWorks {
+ [Export(typeof(ArchiveFormat))]
+ public class KbmOpener : ArchiveFormat {
+ public override string Tag { get { return "DAT/PENGUIN"; } }
+ public override string Description { get { return "Penguin Works 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) {
+ int count = file.View.ReadInt32(0);
+ if (!IsSaneCount(count))
+ return null;
+
+ var dir = new List(count);
+ int index_offset = 4, base_offset = 24 * count + 4;
+ for (int i = 0; i < count; i++) {
+ var name = file.View.ReadString(index_offset, 16);
+ var entry = Create(name);
+ entry.Size = file.View.ReadUInt32(index_offset + 16);
+ entry.Offset = base_offset + file.View.ReadUInt32(index_offset + 20);
+ if (!entry.CheckPlacement(file.MaxOffset))
+ return null;
+ dir.Add(entry);
+ index_offset += 24;
+ }
+ return new ArcFile(file, this, dir);
+ }
+ }
+}
diff --git a/Legacy/PenguinWorks/ImagePXL.cs b/Legacy/PenguinWorks/ImagePXL.cs
new file mode 100644
index 00000000..0755db6f
--- /dev/null
+++ b/Legacy/PenguinWorks/ImagePXL.cs
@@ -0,0 +1,59 @@
+//! \file ImagePXL.cs
+//! \date 2026-04-14
+//! \brief Penguin Works image format.
+//
+// Copyright (C) 2026 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.PenguinWorks {
+ [Export(typeof(ImageFormat))]
+ public class PxlFormat : ImageFormat {
+ public override string Tag { get { return "PXL"; } }
+ public override string Description { get { return "Penguin Works image format"; } }
+ public override uint Signature { get { return 0; } }
+
+ public override ImageMetaData ReadMetaData(IBinaryStream file) {
+ uint width = file.ReadUInt32();
+ uint height = file.ReadUInt32();
+ return new ImageMetaData {
+ Width = width,
+ Height = height,
+ BPP = 24,
+ };
+ }
+
+ public override ImageData Read(IBinaryStream file, ImageMetaData info) {
+ file.Position = 8;
+ int stride = info.iWidth * 3;
+ var pixels = new byte[stride * info.iHeight];
+ file.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 ("PxlFormat.Write not implemented");
+ }
+ }
+}
diff --git a/Legacy/Ruri/ArcKBM.cs b/Legacy/Ruri/ArcKBM.cs
new file mode 100644
index 00000000..48303076
--- /dev/null
+++ b/Legacy/Ruri/ArcKBM.cs
@@ -0,0 +1,65 @@
+//! \file ArcKBM.cs
+//! \date 2026-04-12
+//! \brief Ruri System image archive format.
+//
+// Copyright (C) 2026 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.Collections.Generic;
+using System.ComponentModel.Composition;
+using System.IO;
+
+namespace GameRes.Formats.Ruri {
+ [Export(typeof(ArchiveFormat))]
+ public class KbmOpener : ArchiveFormat {
+ public override string Tag { get { return "KBM"; } }
+ public override string Description { get { return "Ruri System image archive format"; } }
+ public override uint Signature { get { return 0; } }
+ public override bool IsHierarchic { get { return false; } }
+ public override bool CanWrite { get { return false; } }
+
+ public KbmOpener() {
+ Extensions = new string[] { "Kbm" };
+ }
+
+ public override ArcFile TryOpen(ArcView file) {
+ if (!file.View.AsciiEqual(0, "KBM"))
+ return null;
+ int count = file.View.ReadByte(3);
+ var base_name = Path.GetFileNameWithoutExtension(file.Name);
+ var dir = new List(count);
+ int offset = 0x20;
+ for (int i = 0; i < count; i++) {
+ var entry = new Entry {
+ Name = string.Format("{0}#{1:D3}.bmp", base_name, i),
+ Type = "image",
+ Offset = file.View.ReadUInt32(offset),
+ Size = file.View.ReadUInt32(offset + 4)
+ };
+ if (!entry.CheckPlacement(file.MaxOffset))
+ return null;
+ dir.Add(entry);
+ offset += 0x10;
+ }
+ return new ArcFile(file, this, dir);
+ }
+ }
+}