diff --git a/src/ObjWriting/Dumping/StructuredDataDef/StructuredDataDefDumper.cpp b/src/ObjWriting/Dumping/StructuredDataDef/StructuredDataDefDumper.cpp
new file mode 100644
index 00000000..f9192d6c
--- /dev/null
+++ b/src/ObjWriting/Dumping/StructuredDataDef/StructuredDataDefDumper.cpp
@@ -0,0 +1,43 @@
+#include "StructuredDataDefDumper.h"
+
+#include <cassert>
+
+StructuredDataDefDumper::StructuredDataDefDumper(std::ostream& stream)
+    : AbstractTextDumper(stream),
+      m_flags{}
+{
+}
+
+void StructuredDataDefDumper::BeginVersion(const int version)
+{
+    assert(!m_flags.m_in_version);
+    if (m_flags.m_in_version)
+        return;
+
+    if (m_flags.m_empty_line_before_version)
+        m_stream << "\n";
+    else
+        m_flags.m_empty_line_before_version = true;
+
+    Indent();
+    m_stream << "version " << version << "\n";
+
+    Indent();
+    m_stream << "{\n";
+
+    IncIndent();
+
+    m_flags.m_in_version = true;
+}
+
+void StructuredDataDefDumper::EndVersion()
+{
+    assert(m_flags.m_in_version);
+    if (!m_flags.m_in_version)
+        return;
+
+    DecIndent();
+    Indent();
+    m_stream << "}\n";
+    m_flags.m_in_version = false;
+}
diff --git a/src/ObjWriting/Dumping/StructuredDataDef/StructuredDataDefDumper.h b/src/ObjWriting/Dumping/StructuredDataDef/StructuredDataDefDumper.h
new file mode 100644
index 00000000..52bc9b58
--- /dev/null
+++ b/src/ObjWriting/Dumping/StructuredDataDef/StructuredDataDefDumper.h
@@ -0,0 +1,18 @@
+#pragma once
+
+#include "Dumping/AbstractTextDumper.h"
+
+class StructuredDataDefDumper : AbstractTextDumper
+{
+    struct
+    {
+        bool m_in_version : 1;
+        bool m_empty_line_before_version : 1;
+    } m_flags;
+
+public:
+    explicit StructuredDataDefDumper(std::ostream& stream);
+
+    void BeginVersion(int version);
+    void EndVersion();
+};
diff --git a/src/ObjWriting/Game/IW4/AssetDumpers/AssetDumperStructuredDataDefSet.cpp b/src/ObjWriting/Game/IW4/AssetDumpers/AssetDumperStructuredDataDefSet.cpp
new file mode 100644
index 00000000..11c80a88
--- /dev/null
+++ b/src/ObjWriting/Game/IW4/AssetDumpers/AssetDumperStructuredDataDefSet.cpp
@@ -0,0 +1,32 @@
+#include "AssetDumperStructuredDataDefSet.h"
+
+#include "Dumping/StructuredDataDef/StructuredDataDefDumper.h"
+
+using namespace IW4;
+
+bool AssetDumperStructuredDataDefSet::ShouldDump(XAssetInfo<StructuredDataDefSet>* asset)
+{
+    return true;
+}
+
+void AssetDumperStructuredDataDefSet::DumpAsset(AssetDumpingContext& context, XAssetInfo<StructuredDataDefSet>* asset)
+{
+    const auto* set = asset->Asset();
+    const auto assetFile = context.OpenAssetFile(asset->m_name);
+
+    if (!assetFile || set->defs == nullptr)
+        return;
+
+    StructuredDataDefDumper dumper(*assetFile);
+
+    for(auto defIndex = 0u; defIndex < set->defCount; defIndex++)
+    {
+        const auto& def = set->defs[defIndex];
+
+        dumper.BeginVersion(def.version);
+
+        // TODO
+
+        dumper.EndVersion();
+    }
+}
diff --git a/src/ObjWriting/Game/IW4/AssetDumpers/AssetDumperStructuredDataDefSet.h b/src/ObjWriting/Game/IW4/AssetDumpers/AssetDumperStructuredDataDefSet.h
new file mode 100644
index 00000000..dfaa9c7a
--- /dev/null
+++ b/src/ObjWriting/Game/IW4/AssetDumpers/AssetDumperStructuredDataDefSet.h
@@ -0,0 +1,14 @@
+#pragma once
+
+#include "Dumping/AbstractAssetDumper.h"
+#include "Game/IW4/IW4.h"
+
+namespace IW4
+{
+    class AssetDumperStructuredDataDefSet final : public AbstractAssetDumper<StructuredDataDefSet>
+    {
+    protected:
+        bool ShouldDump(XAssetInfo<StructuredDataDefSet>* asset) override;
+        void DumpAsset(AssetDumpingContext& context, XAssetInfo<StructuredDataDefSet>* asset) override;
+    };
+}
diff --git a/src/ObjWriting/Game/IW4/ZoneDumperIW4.cpp b/src/ObjWriting/Game/IW4/ZoneDumperIW4.cpp
index f8d7a2aa..fbb67ea3 100644
--- a/src/ObjWriting/Game/IW4/ZoneDumperIW4.cpp
+++ b/src/ObjWriting/Game/IW4/ZoneDumperIW4.cpp
@@ -16,6 +16,7 @@
 #include "AssetDumpers/AssetDumperRawFile.h"
 #include "AssetDumpers/AssetDumperSndCurve.h"
 #include "AssetDumpers/AssetDumperStringTable.h"
+#include "AssetDumpers/AssetDumperStructuredDataDefSet.h"
 #include "AssetDumpers/AssetDumperTracer.h"
 #include "AssetDumpers/AssetDumperVehicle.h"
 #include "AssetDumpers/AssetDumperWeapon.h"
@@ -71,7 +72,7 @@ bool ZoneDumper::DumpZone(AssetDumpingContext& context) const
     DUMP_ASSET_POOL(AssetDumperRawFile, m_raw_file, ASSET_TYPE_RAWFILE)
     DUMP_ASSET_POOL(AssetDumperStringTable, m_string_table, ASSET_TYPE_STRINGTABLE)
     // DUMP_ASSET_POOL(AssetDumperLeaderboardDef, m_leaderboard, ASSET_TYPE_LEADERBOARD)
-    // DUMP_ASSET_POOL(AssetDumperStructuredDataDefSet, m_structed_data_def_set, ASSET_TYPE_STRUCTURED_DATA_DEF)
+    DUMP_ASSET_POOL(AssetDumperStructuredDataDefSet, m_structed_data_def_set, ASSET_TYPE_STRUCTURED_DATA_DEF)
     DUMP_ASSET_POOL(AssetDumperTracer, m_tracer, ASSET_TYPE_TRACER)
     DUMP_ASSET_POOL(AssetDumperVehicle, m_vehicle, ASSET_TYPE_VEHICLE)
     DUMP_ASSET_POOL(AssetDumperAddonMapEnts, m_addon_map_ents, ASSET_TYPE_ADDON_MAP_ENTS)