diff --git a/src/il2cpp_resolver.cpp b/src/il2cpp_resolver.cpp
index 442e00c..8a883fd 100644
--- a/src/il2cpp_resolver.cpp
+++ b/src/il2cpp_resolver.cpp
@@ -361,6 +361,208 @@ void Il2CppResolver::dumpDiagnostics(){
 #endif
 }
 
+void Il2CppResolver::inspectInventoryState(){
+#ifdef _WIN32
+    try {
+        char exe[MAX_PATH]; GetModuleFileNameA(nullptr, exe, MAX_PATH);
+        char* slash = strrchr(exe, '\\'); if(!slash) slash = strrchr(exe, '/');
+        std::string logPath = slash ? std::string(exe, slash - exe) + "\\DevourUnlocker.log" : "DevourUnlocker.log";
+        std::ofstream f(logPath, std::ios::app);
+        f << "[inv] inspectInventoryState BEGIN\n" << std::unitbuf;
+
+        auto domain_get = reinterpret_cast<void*(*)()>(getProc("il2cpp_domain_get"));
+        auto klass_from_name = reinterpret_cast<void*(*)(void*, const char*, const char*)>(getProc("il2cpp_class_from_name"));
+        auto field_from_name = reinterpret_cast<void*(*)(void*, const char*)>(getProc("il2cpp_class_get_field_from_name"));
+        auto field_static_get = reinterpret_cast<void(*)(void*, void*)>(getProc("il2cpp_field_static_get_value")); // (field, out)
+        auto field_get_value = reinterpret_cast<void(*)(void*, void*, void*)>(getProc("il2cpp_field_get_value"));
+        auto obj_get_class = reinterpret_cast<void*(*)(void*)>(getProc("il2cpp_object_get_class"));
+        auto class_get_name_fn = reinterpret_cast<const char*(*)(void*)>(getProc("il2cpp_class_get_name"));
+        auto arr_elem_size_cls = reinterpret_cast<int(*)(void*)>(getProc("il2cpp_class_array_element_size"));
+        auto fields_iter = reinterpret_cast<void*(*)(void*, void**)>(getProc("il2cpp_class_get_fields"));
+        auto field_name_fn = reinterpret_cast<const char*(*)(void*)>(getProc("il2cpp_field_get_name"));
+        auto field_off = reinterpret_cast<size_t(*)(void*)>(getProc("il2cpp_field_get_offset"));
+
+        if(!domain_get || !klass_from_name || !field_from_name || !field_static_get || !field_get_value || !obj_get_class || !class_get_name_fn){
+            f << "[inv] missing exports\n"; return;
+        }
+        void* domain = domain_get();
+        if(!domain){ f << "[inv] no domain\n"; return; }
+
+        // find SteamInventoryManager class across assemblies
+        auto dom_asm = reinterpret_cast<const void**(*)(void*, size_t*)>(getProc("il2cpp_domain_get_assemblies"));
+        auto asm_img = reinterpret_cast<void*(*)(void*)>(getProc("il2cpp_assembly_get_image"));
+        if(!dom_asm || !asm_img){ f << "[inv] no asm exports\n"; return; }
+        size_t n=0; const void** asms = dom_asm(domain,&n);
+        void* simClass=nullptr;
+        for(size_t i=0;i<n && !simClass;++i){
+            void* img=asm_img((void*)asms[i]); if(!img) continue;
+            simClass = klass_from_name(img,"","SteamInventoryManager");
+        }
+        if(!simClass){ f << "[inv] SteamInventoryManager class not found\n"; return; }
+        f << "[inv] SIM class " << class_get_name_fn(simClass) << "\n";
+
+        void* fInst = field_from_name(simClass,"instance");
+        if(!fInst){ f << "[inv] no 'instance' field\n"; return; }
+        void* mgr=nullptr;
+        field_static_get(fInst,&mgr);
+        if(!mgr){ f << "[inv] manager instance null (not Awake yet)\n"; return; }
+        f << "[inv] manager=" << mgr << "\n";
+
+        const char* containers[] = {"userItems","steamItems","m_SteamItemDetails",nullptr};
+        for(int ci=0;containers[ci];++ci){
+            void* fld = field_from_name(simClass,containers[ci]);
+            if(!fld){ f << "[inv] field "<<containers[ci]<<" missing\n"; continue; }
+            void* val=nullptr;
+            field_get_value(mgr,fld,&val);
+            if(!val){ f << "[inv] "<<containers[ci]<<" = null\n"; continue; }
+            void* vcls=obj_get_class(val);
+            f << "[inv] "<<containers[ci]<<" obj="<<val<<" class="<<(vcls?class_get_name_fn(vcls):"?\n");
+            f << "\n";
+            // If List<T>: _items @0x10, _size @0x18
+            unsigned char* lst=(unsigned char*)val;
+            void* arr = *(void**)(lst+0x10);
+            int32_t lsize = *(int32_t*)(lst+0x18);
+            f << "[inv]   _items="<<arr<<" _size="<<lsize<<"\n";
+            if(!arr){ continue; }
+            void* arrCls = *(void**)arr;
+            int esz = arrCls && arr_elem_size_cls ? arr_elem_size_cls(arrCls) : 0;
+            const char* aname = arrCls? class_get_name_fn(arrCls):"?";
+            uint64_t maxlen = *(uint64_t*)((unsigned char*)arr+0x18);
+            f << "[inv]   array class="<<aname<<" elemSize="<<esz<<" capacity="<<maxlen<<"\n";
+        }
+        f << "[inv] inspect END\n"; f.flush();
+    } catch(...){
+        try{ char e2[MAX_PATH]; GetModuleFileNameA(nullptr,e2,MAX_PATH); char* s2=strrchr(e2,'\\'); if(!s2) s2=strrchr(e2,'/'); if(s2){ std::ofstream f2(std::string(e2,s2-e2)+"\\DevourUnlocker.log",std::ios::app); f2<<"[inv] EXCEPTION during inspect (guarded)\n"; } }catch(...){}
+    }
+#endif
+}
+
+int Il2CppResolver::fabricateOwnership(){
+#ifdef _WIN32
+    int injected = -1; // -1 = not ready / error
+    try{
+        auto domain_get = reinterpret_cast<void*(*)()>(getProc("il2cpp_domain_get"));
+        auto thread_attach = reinterpret_cast<void*(*)(void*)>(getProc("il2cpp_thread_attach"));
+        auto klass_from_name = reinterpret_cast<void*(*)(void*, const char*, const char*)>(getProc("il2cpp_class_from_name"));
+        auto field_from_name = reinterpret_cast<void*(*)(void*, const char*)>(getProc("il2cpp_class_get_field_from_name"));
+        auto field_static_get = reinterpret_cast<void(*)(void*, void*)>(getProc("il2cpp_field_static_get_value"));
+        auto field_get_value = reinterpret_cast<void(*)(void*, void*, void*)>(getProc("il2cpp_field_get_value"));
+        auto obj_get_class = reinterpret_cast<void*(*)(void*)>(getProc("il2cpp_object_get_class"));
+        auto class_get_name_fn = reinterpret_cast<const char*(*)(void*)>(getProc("il2cpp_class_get_name"));
+        auto get_method = reinterpret_cast<void*(*)(void*, const char*, int)>(getProc("il2cpp_class_get_method_from_name"));
+        auto invoke_fn = reinterpret_cast<void*(*)(void*, void*, void**, void**)>(getProc("il2cpp_runtime_invoke"));
+        if(!domain_get || !thread_attach || !klass_from_name || !field_from_name || !field_static_get ||
+           !field_get_value || !obj_get_class || !class_get_name_fn || !get_method || !invoke_fn) return -1;
+        void* domain = domain_get();
+        if(!domain) return -1;
+        if(thread_attach) thread_attach(domain);
+
+        auto dom_asm = reinterpret_cast<const void**(*)(void*, size_t*)>(getProc("il2cpp_domain_get_assemblies"));
+        auto asm_img = reinterpret_cast<void*(*)(void*)>(getProc("il2cpp_assembly_get_image"));
+        if(!dom_asm || !asm_img) return -1;
+        size_t n=0; const void** asms = dom_asm(domain,&n);
+
+        // SteamInventoryManager class + Steamworks.SteamItemDef_t enum class
+        void* simClass=nullptr; void* defEnumClass=nullptr;
+        for(size_t i=0;i<n;++i){
+            void* img=asm_img((void*)asms[i]); if(!img) continue;
+            if(!simClass) simClass = klass_from_name(img,"","SteamInventoryManager");
+            if(!defEnumClass) defEnumClass = klass_from_name(img,"Steamworks","SteamItemDef_t");
+            if(simClass && defEnumClass) break;
+        }
+        if(!simClass) return -1;
+
+        void* fInst = field_from_name(simClass,"instance");
+        if(!fInst) return -1;
+        void* mgr=nullptr;
+        field_static_get(fInst,&mgr);
+        if(!mgr) return -1;
+
+        void* fUser = field_from_name(simClass,"userItems");
+        void* fCat  = field_from_name(simClass,"steamItems");
+        if(!fUser || !fCat) return -1;
+        void* userList=nullptr; void* catList=nullptr;
+        field_get_value(mgr,fUser,&userList);
+        field_get_value(mgr,fCat,&catList);
+        if(!userList || !catList) return -1;
+
+        unsigned char* ul=(unsigned char*)userList;
+        void* uArr=*(void**)(ul+0x10); int32_t uSize=*(int32_t*)(ul+0x18);
+        unsigned char* cl=(unsigned char*)catList;
+        void* cArr=*(void**)(cl+0x10); int32_t cSize=*(int32_t*)(cl+0x18);
+        if(!cArr || cSize<=0) return -1;
+
+        // existing owned ids (List<SteamItemDef_t>, enum is 4-byte int despite array_element_size saying 8)
+        std::vector<uint64_t> have;
+        if(uArr){
+            unsigned char* data=(unsigned char*)uArr+0x20;
+            for(int i=0;i<uSize;++i) have.push_back((uint64_t)*(uint32_t*)(data+(size_t)i*4));
+        }
+        auto hasId=[&](uint64_t id){ for(auto v:have) if(v==id) return true; return false; };
+
+        if(uSize >= cSize && cSize>0) return 0; // already fully populated
+        void* addMethod = get_method(obj_get_class(userList),"Add",1);
+        if(!addMethod) return -1;
+
+        unsigned char* cData=(unsigned char*)cArr+0x20;
+
+        // DIAGNOSTIC: hex-dump sample ids so mismatches are visible
+        auto dumpIds=[&](const char* tag){
+            try{
+                char exe[MAX_PATH]; GetModuleFileNameA(nullptr,exe,MAX_PATH);
+                char* s=strrchr(exe,'\\'); if(!s) s=strrchr(exe,'/'); if(!s) return;
+                std::ofstream f(std::string(exe,s-exe)+"\\DevourUnlocker.log",std::ios::app);
+                f<<"[dbg] "<<tag<<":";
+                if(strcmp(tag,"have")==0){ for(size_t i=0;i<have.size()&&i<8;++i) f<<" "<<std::hex<<(unsigned long long)have[i]; }
+                else { for(int i=0;i<cSize&&i<8;++i){ void* ip=*(void**)(cData+(size_t)i*8); if(!ip) continue; uint64_t d=(uint64_t)*(uint32_t*)((unsigned char*)ip+0x10); f<<" "<<std::hex<<(unsigned long long)d; } }
+                f<<std::dec<<"\n";
+            }catch(...){}
+        };
+        dumpIds("have");
+        dumpIds("catalog");
+        injected=0;
+        int verified=0;
+        for(int i=0;i<cSize;++i){
+            void* itemPtr=*(void**)(cData+(size_t)i*8);
+            if(!itemPtr) continue;
+            uint64_t defId=(uint64_t)*(uint32_t*)((unsigned char*)itemPtr+0x10); // SteamInventoryItem.itemID @+0x10 (int-backed)
+            if(defId==0 || hasId(defId)) continue;
+            void* exc=nullptr; void* arg=&defId;
+            invoke_fn(addMethod,userList,&arg,&exc);
+            if(exc){ continue; }
+            have.push_back(defId);
+            ++injected;
+            // verify first 3 adds actually stored the right value
+            if(verified<3){
+                void* uArrNow=*(void**)(ul+0x10); int32_t szNow=*(int32_t*)(ul+0x18);
+                if(uArrNow && szNow>0){
+                    unsigned char* dNow=(unsigned char*)uArrNow+0x20;
+                    uint64_t last=(uint64_t)*(uint32_t*)(dNow+(size_t)(szNow-1)*4);
+                    try{
+                        char exe[MAX_PATH]; GetModuleFileNameA(nullptr,exe,MAX_PATH);
+                        char* s=strrchr(exe,'\\'); if(!s) s=strrchr(exe,'/');
+                        if(s){ std::ofstream f(std::string(exe,s-exe)+"\\DevourUnlocker.log",std::ios::app);
+                            f<<std::hex<<"[dbg] add sent="<<(unsigned long long)defId<<" stored_last="<<(unsigned long long)last<<" size="<<std::dec<<szNow<<"\n"; }
+                    }catch(...){}
+                }
+                ++verified;
+            }
+        }
+        try{
+            char exe[MAX_PATH]; GetModuleFileNameA(nullptr,exe,MAX_PATH);
+            char* s=strrchr(exe,'\\'); if(!s) s=strrchr(exe,'/');
+            if(s){
+                std::ofstream f(std::string(exe,s-exe)+"\\DevourUnlocker.log",std::ios::app);
+                f<<"[own] fabricate: catalog="<<cSize<<" had="<<(uSize>0?uSize:(int)have.size()-injected)<<" injected="<<injected<<"\n";
+            }
+        }catch(...){}
+    } catch(...){ injected=-1; }
+    return injected;
+#else
+    return -1;
+#endif
+}
+
 #else // Linux stubs
 
 uintptr_t Il2CppResolver::gameAssemblyBase() { return 0; }
diff --git a/src/il2cpp_resolver.hpp b/src/il2cpp_resolver.hpp
index b2756af..aa640a7 100644
--- a/src/il2cpp_resolver.hpp
+++ b/src/il2cpp_resolver.hpp
@@ -45,6 +45,15 @@ public:
     static ResolvedMethod playerHasItem();    // SteamInventoryValidator.PlayerHasItem(connId, steamItemDefID)
     static ResolvedMethod hasRetrievedUserItems(); // SteamInventoryManager.HasRetrievedUserInventoryItems()
     static void dumpDiagnostics();
+    // Raw introspection of SteamInventoryManager singleton containers (userItems etc).
+    // Logs element type/size/sample bytes so we can fabricate ownership entries safely.
+    static void inspectInventoryState();
+    // Injects every catalog def id from steamItems into userItems (List<SteamItemDef_t>::Add).
+    // Returns number newly injected. Safe to call repeatedly — the game recreates the
+    // list on inventory refresh, so run this periodically.
+    static int fabricateOwnership();
+    // Accessors used by the inspector/fabricator
+    static void* getProcPub(const char* name) { return getProc(name); }
     static uintptr_t gameAssemblyBase();
     static size_t gameAssemblySize();
 };
diff --git a/src/patches.cpp b/src/patches.cpp
index 1db6103..6469028 100644
--- a/src/patches.cpp
+++ b/src/patches.cpp
@@ -324,6 +324,25 @@ bool installPatches() {
     }
     g_installed = any;
     logPatch(any ? "[DevourUnlocker] Patches installed (some may retry)" : "[DevourUnlocker] No patches installed");
+    // Ownership fabricator + introspection thread:
+    //  - every 15s inject missing catalog ids into userItems (list is recreated on refresh)
+    //  - one layout dump at 30s for diagnostics
+    CreateThread(nullptr, 0, [](LPVOID)->DWORD{
+        Sleep(30000);
+        logPatch("[DevourUnlocker] inspectInventoryState @30s");
+        Il2CppResolver::inspectInventoryState();
+        int total=0;
+        for(int cycle=0; cycle<240; ++cycle){   // ~60 min of refills
+            Sleep(15000);
+            int n = Il2CppResolver::fabricateOwnership();
+            if(n>0){
+                total+=n;
+                char b[128]; snprintf(b,sizeof(b),"[DevourUnlocker] ownership injected +%d (session total %d)",n,total);
+                logPatch(b);
+            }
+        }
+        return 0;
+    }, nullptr, 0, nullptr);
     return any;
 }