1 files changed, 39 insertions, 9 deletions

diff --git a/src/core/loader/loader.cpp b/src/core/loader/loader.cpp
index 90e23ccc11..92e2e2f602 100644
--- a/src/core/loader/loader.cpp
+++ b/src/core/loader/loader.cpp
@@ -82,23 +82,27 @@ std::shared_ptr<FileSys::NSP> OpenContainerAsNsp(FileSys::VirtualFile file, File
         return nullptr;
     }
 
-    if (type == FileType::NSP) {
+    if (type == FileType::NSP || type == FileType::NSZ) {
         auto nsp = std::make_shared<FileSys::NSP>(file, program_id, program_index);
         return nsp->GetStatus() == ResultStatus::Success ? nsp : nullptr;
     }
 
-    if (type == FileType::XCI) {
+    if (type == FileType::XCI || type == FileType::XCZ) {
         FileSys::XCI xci{file, program_id, program_index};
-        if (xci.GetStatus() != ResultStatus::Success) {
-            return nullptr;
+        if (xci.GetStatus() == ResultStatus::Success) {
+            auto secure_nsp = xci.GetSecurePartitionNSP();
+            if (secure_nsp != nullptr && secure_nsp->GetStatus() == ResultStatus::Success) {
+                return secure_nsp;
+            }
         }
 
-        auto secure_nsp = xci.GetSecurePartitionNSP();
-        if (secure_nsp == nullptr || secure_nsp->GetStatus() != ResultStatus::Success) {
-            return nullptr;
+        // PFS0-shaped .xcz (NSZ-style container) does not parse as XCI; fall back to NSP.
+        if (type == FileType::XCZ) {
+            auto nsp = std::make_shared<FileSys::NSP>(file, program_id, program_index);
+            return nsp->GetStatus() == ResultStatus::Success ? nsp : nullptr;
         }
 
-        return secure_nsp;
+        return nullptr;
     }
 
     return nullptr;
@@ -144,7 +148,8 @@ FileType IdentifyFile(FileSys::VirtualFile file) {
 }
 
 bool IsContainerType(FileType type) {
-    return type == FileType::NSP || type == FileType::XCI;
+    return type == FileType::NSP || type == FileType::NSZ || type == FileType::XCI ||
+           type == FileType::XCZ;
 }
 
 bool IsBootableGameContainer(FileSys::VirtualFile file, FileType type, u64 program_id,
@@ -180,8 +185,12 @@ FileType GuessFromFilename(const std::string& name) {
         return FileType::NCA;
     else if (extension == "xci")
         return FileType::XCI;
+    else if (extension == "xcz")
+        return FileType::XCZ;
     else if (extension == "nsp")
         return FileType::NSP;
+    else if (extension == "nsz")
+        return FileType::NSZ;
     else if (extension == "kip")
         return FileType::KIP;
     return FileType::Unknown;
@@ -197,10 +206,14 @@ std::string GetFileTypeString(FileType type) {
         return "NCA";
     case FileType::XCI:
         return "XCI";
+    case FileType::XCZ:
+        return "XCZ";
     case FileType::NAX:
         return "NAX";
     case FileType::NSP:
         return "NSP";
+    case FileType::NSZ:
+        return "NSZ";
     case FileType::KIP:
         return "KIP";
     case FileType::DeconstructedRomDirectory:
@@ -326,12 +339,29 @@ static std::unique_ptr<AppLoader> GetFileLoader(Core::System& system, FileSys::V
                                                system.GetContentProvider(), program_id,
                                                program_index);
 
+    // NCZ-compressed XCI container. XCI-shaped .xcz goes to the XCI loader, while
+    // PFS0-shaped (NSZ-style) .xcz containers fall back to the NSP loader.
+    case FileType::XCZ: {
+        FileSys::XCI probe{file, program_id, program_index};
+        if (probe.GetStatus() == ResultStatus::Success &&
+            probe.GetSecurePartitionNSP() != nullptr) {
+            return std::make_unique<AppLoader_XCI>(std::move(file),
+                                                   system.GetFileSystemController(),
+                                                   system.GetContentProvider(), program_id,
+                                                   program_index);
+        }
+        return std::make_unique<AppLoader_NSP>(std::move(file), system.GetFileSystemController(),
+                                               system.GetContentProvider(), program_id,
+                                               program_index);
+    }
+
     // NX NAX (NintendoAesXts) file format.
     case FileType::NAX:
         return std::make_unique<AppLoader_NAX>(std::move(file));
 
     // NX NSP (Nintendo Submission Package) file format
     case FileType::NSP:
+    case FileType::NSZ:
         return std::make_unique<AppLoader_NSP>(std::move(file), system.GetFileSystemController(),
                                                system.GetContentProvider(), program_id,
                                                program_index);