diff --git a/CMakeLists.txt b/CMakeLists.txt
index 6af59e1..66927ee 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -41,6 +41,8 @@ if(TARGET WarcraftXL)
 endif()
 
 if(TARGET WarcraftXLHost)
+    wxl_collect_sources(WXL_MOONWELL_HOST
+        "${CMAKE_CURRENT_SOURCE_DIR}/modules/moonwell/host/*.cpp")
     wxl_collect_sources(WXL_MODERN_ASSETS_HOST
         "${WXL_EXTERNAL_MODULES_DIR}/wxl-modern-assets/host/*.cpp"
         "${WXL_EXTERNAL_MODULES_DIR}/wxl-modern-assets/shared/*.cpp")
@@ -53,6 +55,7 @@ if(TARGET WarcraftXLHost)
         "${WXL_EXTERNAL_MODULES_DIR}/wxl-modern-adt/shared/*.cpp")
 
     target_sources(WarcraftXLHost PRIVATE
+        ${WXL_MOONWELL_HOST}
         ${WXL_MODERN_ASSETS_HOST}
         ${WXL_MODERN_ADT_HOST})
 endif()
diff --git a/modules/moonwell/host/FileDataResolver.cpp b/modules/moonwell/host/FileDataResolver.cpp
new file mode 100644
index 0000000..96d43e8
--- /dev/null
+++ b/modules/moonwell/host/FileDataResolver.cpp
@@ -0,0 +1,95 @@
+// SPDX-License-Identifier: GPL-3.0-or-later
+// FileDataID resolver for selected retail assets shipped in MoonWell patches.
+
+#include "Host.hpp"
+#include "core/Logger.hpp"
+#include "mpq/MpqStore.hpp"
+
+#include <charconv>
+#include <cstdint>
+#include <mutex>
+#include <string>
+#include <string_view>
+#include <system_error>
+#include <unordered_map>
+#include <vector>
+
+namespace moonwell::host
+{
+    namespace
+    {
+        constexpr std::string_view kFileDataMap = "WXLFileData.csv";
+
+        std::once_flag g_loadOnce;
+        std::unordered_map<uint32_t, std::string> g_paths;
+
+        std::string_view Trim(std::string_view value)
+        {
+            while (!value.empty() && (value.front() == ' ' || value.front() == '\t' ||
+                                      value.front() == '\r' || value.front() == '\n'))
+                value.remove_prefix(1);
+            while (!value.empty() && (value.back() == ' ' || value.back() == '\t' ||
+                                      value.back() == '\r' || value.back() == '\n'))
+                value.remove_suffix(1);
+            return value;
+        }
+
+        void Load()
+        {
+            const std::string root = wxl::host::ClientRoot();
+            wxl::host::mpq::MpqStore store;
+            std::vector<uint8_t> bytes;
+            if (root.empty() || !store.Mount(root) || !store.ReadAll(kFileDataMap, bytes))
+            {
+                WLOG_WARN("moonwell: FileDataID map '%.*s' was not found",
+                          int(kFileDataMap.size()), kFileDataMap.data());
+                return;
+            }
+
+            const std::string_view text(reinterpret_cast<const char*>(bytes.data()), bytes.size());
+            size_t lineStart = 0;
+            while (lineStart < text.size())
+            {
+                size_t lineEnd = text.find('\n', lineStart);
+                if (lineEnd == std::string_view::npos) lineEnd = text.size();
+                std::string_view line = Trim(text.substr(lineStart, lineEnd - lineStart));
+                lineStart = lineEnd + 1;
+
+                if (line.empty() || line.front() == '#') continue;
+                const size_t comma = line.find(',');
+                if (comma == std::string_view::npos) continue;
+
+                const std::string_view idText = Trim(line.substr(0, comma));
+                std::string_view pathText = Trim(line.substr(comma + 1));
+                uint32_t fileDataId = 0;
+                const auto parsed = std::from_chars(idText.data(), idText.data() + idText.size(), fileDataId);
+                if (parsed.ec != std::errc{} || parsed.ptr != idText.data() + idText.size() ||
+                    fileDataId == 0 || pathText.empty())
+                    continue;
+
+                std::string path(pathText);
+                for (char& c : path) if (c == '/') c = '\\';
+                g_paths[fileDataId] = std::move(path);
+            }
+
+            WLOG_INFO("moonwell: loaded %zu FileDataID path(s) from %.*s",
+                      g_paths.size(), int(kFileDataMap.size()), kFileDataMap.data());
+        }
+
+        bool Resolve(uint32_t fileDataId, std::string& outPath)
+        {
+            std::call_once(g_loadOnce, &Load);
+            const auto found = g_paths.find(fileDataId);
+            if (found == g_paths.end()) return false;
+            outPath = found->second;
+            return true;
+        }
+
+        struct Registrar
+        {
+            Registrar() { wxl::host::RegisterResolver("moonwell-filedata", &Resolve); }
+        };
+
+        Registrar g_registrar;
+    }
+}
diff --git a/src/Data/patch-Z/Creature/Catslime/catslime.m2 b/src/Data/patch-Z/Creature/Catslime/catslime.m2
new file mode 100644
index 0000000..d1f5a25
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diff --git a/src/Data/patch-Z/Creature/Catslime/catslime00.skin b/src/Data/patch-Z/Creature/Catslime/catslime00.skin
new file mode 100644
index 0000000..13b19fb
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diff --git a/src/Data/patch-Z/Creature/Catslime/catslime0061-00.anim b/src/Data/patch-Z/Creature/Catslime/catslime0061-00.anim
new file mode 100644
index 0000000..1fdd766
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diff --git a/src/Data/patch-Z/Creature/Catslime/catslime0069-00.anim b/src/Data/patch-Z/Creature/Catslime/catslime0069-00.anim
new file mode 100644
index 0000000..141c0f0
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diff --git a/src/Data/patch-Z/Creature/Catslime/catslime0075-00.anim b/src/Data/patch-Z/Creature/Catslime/catslime0075-00.anim
new file mode 100644
index 0000000..91f843a
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diff --git a/src/Data/patch-Z/Creature/Catslime/catslime0096-00.anim b/src/Data/patch-Z/Creature/Catslime/catslime0096-00.anim
new file mode 100644
index 0000000..7efcc14
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diff --git a/src/Data/patch-Z/Creature/Catslime/catslime0097-00.anim b/src/Data/patch-Z/Creature/Catslime/catslime0097-00.anim
new file mode 100644
index 0000000..57613ed
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diff --git a/src/Data/patch-Z/Creature/Catslime/catslime0098-00.anim b/src/Data/patch-Z/Creature/Catslime/catslime0098-00.anim
new file mode 100644
index 0000000..f4f0fad
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diff --git a/src/Data/patch-Z/Creature/Catslime/catslime0099-00.anim b/src/Data/patch-Z/Creature/Catslime/catslime0099-00.anim
new file mode 100644
index 0000000..eefd193
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diff --git a/src/Data/patch-Z/Creature/Catslime/catslime0100-00.anim b/src/Data/patch-Z/Creature/Catslime/catslime0100-00.anim
new file mode 100644
index 0000000..0ac7fb3
Binary files /dev/null and b/src/Data/patch-Z/Creature/Catslime/catslime0100-00.anim differ
diff --git a/src/Data/patch-Z/Creature/Catslime/catslime0101-00.anim b/src/Data/patch-Z/Creature/Catslime/catslime0101-00.anim
new file mode 100644
index 0000000..6f7fb4e
Binary files /dev/null and b/src/Data/patch-Z/Creature/Catslime/catslime0101-00.anim differ
diff --git a/src/Data/patch-Z/Creature/Catslime/catslime0123-00.anim b/src/Data/patch-Z/Creature/Catslime/catslime0123-00.anim
new file mode 100644
index 0000000..89d139f
Binary files /dev/null and b/src/Data/patch-Z/Creature/Catslime/catslime0123-00.anim differ
diff --git a/src/Data/patch-Z/Creature/Catslime/catslime_3732460.blp b/src/Data/patch-Z/Creature/Catslime/catslime_3732460.blp
new file mode 100644
index 0000000..931c808
Binary files /dev/null and b/src/Data/patch-Z/Creature/Catslime/catslime_3732460.blp differ
diff --git a/src/Data/patch-Z/Creature/Catslime/catslime_3732461.blp b/src/Data/patch-Z/Creature/Catslime/catslime_3732461.blp
new file mode 100644
index 0000000..9dfb937
Binary files /dev/null and b/src/Data/patch-Z/Creature/Catslime/catslime_3732461.blp differ
diff --git a/src/Data/patch-Z/Creature/Catslime/catslime_lod01.skin b/src/Data/patch-Z/Creature/Catslime/catslime_lod01.skin
new file mode 100644
index 0000000..a2b1535
Binary files /dev/null and b/src/Data/patch-Z/Creature/Catslime/catslime_lod01.skin differ
diff --git a/src/Data/patch-Z/Creature/Catslime/catslime_lod02.skin b/src/Data/patch-Z/Creature/Catslime/catslime_lod02.skin
new file mode 100644
index 0000000..9d2a10e
Binary files /dev/null and b/src/Data/patch-Z/Creature/Catslime/catslime_lod02.skin differ
diff --git a/src/Data/patch-Z/Creature/Catslime/catslime_lod03.skin b/src/Data/patch-Z/Creature/Catslime/catslime_lod03.skin
new file mode 100644
index 0000000..e94499f
Binary files /dev/null and b/src/Data/patch-Z/Creature/Catslime/catslime_lod03.skin differ
diff --git a/src/Data/patch-Z/WXLFileData.csv b/src/Data/patch-Z/WXLFileData.csv
new file mode 100644
index 0000000..c35bcb0
--- /dev/null
+++ b/src/Data/patch-Z/WXLFileData.csv
@@ -0,0 +1,18 @@
+# FileDataID,archive path
+3730958,Creature/Catslime/catslime.m2
+3732460,Creature/Catslime/catslime_3732460.blp
+3732461,Creature/Catslime/catslime_3732461.blp
+3732462,Creature/Catslime/catslime0097-00.anim
+3732463,Creature/Catslime/catslime0096-00.anim
+3732464,Creature/Catslime/catslime0098-00.anim
+3732465,Creature/Catslime/catslime0100-00.anim
+3732466,Creature/Catslime/catslime0099-00.anim
+3732467,Creature/Catslime/catslime0101-00.anim
+3732468,Creature/Catslime/catslime0069-00.anim
+3732469,Creature/Catslime/catslime0123-00.anim
+3732470,Creature/Catslime/catslime0061-00.anim
+3732471,Creature/Catslime/catslime0075-00.anim
+3732472,Creature/Catslime/catslime00.skin
+3732473,Creature/Catslime/catslime_lod01.skin
+3732474,Creature/Catslime/catslime_lod02.skin
+3732475,Creature/Catslime/catslime_lod03.skin