diff --git a/apps/openmw/mwclass/misc.cpp b/apps/openmw/mwclass/misc.cpp
index a7cfae503e..fdb2a7274f 100644
--- a/apps/openmw/mwclass/misc.cpp
+++ b/apps/openmw/mwclass/misc.cpp
@@ -208,7 +208,7 @@ namespace MWClass
         }
         newPtr.getCellRef().unsetRefNum();
         newPtr.getRefData().setLuaScripts(nullptr);
-        MWBase::Environment::get().getWorldModel()->getPtrRegistry().insert(newPtr);
+        MWBase::Environment::get().getWorldModel()->registerPtr(newPtr);
         return newPtr;
     }
 
@@ -229,7 +229,7 @@ namespace MWClass
             newPtr = MWWorld::Ptr(cell.insert(ref), &cell);
         }
         ptr.getRefData().setLuaScripts(nullptr);
-        MWBase::Environment::get().getWorldModel()->getPtrRegistry().insert(newPtr);
+        MWBase::Environment::get().getWorldModel()->registerPtr(newPtr);
         return newPtr;
     }
 
diff --git a/apps/openmw/mwlua/cellbindings.cpp b/apps/openmw/mwlua/cellbindings.cpp
index a8e448aa6c..e961168bee 100644
--- a/apps/openmw/mwlua/cellbindings.cpp
+++ b/apps/openmw/mwlua/cellbindings.cpp
@@ -83,7 +83,7 @@ namespace MWLua
                 auto visitor = [&](const MWWorld::Ptr& ptr) {
                     if (ptr.getRefData().isDeleted())
                         return true;
-                    MWBase::Environment::get().getWorldModel()->getPtrRegistry().insert(ptr);
+                    MWBase::Environment::get().getWorldModel()->registerPtr(ptr);
                     if (getLiveCellRefType(ptr.mRef) == ptr.getType())
                         res->push_back(getId(ptr));
                     return true;
diff --git a/apps/openmw/mwlua/engineevents.cpp b/apps/openmw/mwlua/engineevents.cpp
index 7c1342aefe..0c5abe6cef 100644
--- a/apps/openmw/mwlua/engineevents.cpp
+++ b/apps/openmw/mwlua/engineevents.cpp
@@ -74,7 +74,7 @@ namespace MWLua
     private:
         MWWorld::Ptr getPtr(const ESM::RefNum& id) const
         {
-            MWWorld::Ptr res = mWorldModel->getPtrRegistry().getOrDefault(id);
+            MWWorld::Ptr res = mWorldModel->getPtr(id);
             if (res.isEmpty() && Settings::lua().mLuaDebug)
                 Log(Debug::Verbose) << "Can not find object" << id.toString() << " when calling engine hanglers";
             return res;
diff --git a/apps/openmw/mwlua/luaevents.cpp b/apps/openmw/mwlua/luaevents.cpp
index d96ae63579..b036fea3b6 100644
--- a/apps/openmw/mwlua/luaevents.cpp
+++ b/apps/openmw/mwlua/luaevents.cpp
@@ -40,7 +40,7 @@ namespace MWLua
         mGlobalEventBatch.clear();
         for (const Local& e : mLocalEventBatch)
         {
-            MWWorld::Ptr ptr = MWBase::Environment::get().getWorldModel()->getPtrRegistry().getOrDefault(e.mDest);
+            MWWorld::Ptr ptr = MWBase::Environment::get().getWorldModel()->getPtr(e.mDest);
             LocalScripts* scripts = ptr.isEmpty() ? nullptr : ptr.getRefData().getLuaScripts();
             if (scripts)
                 scripts->receiveEvent(e.mEventName, e.mEventData);
diff --git a/apps/openmw/mwlua/luamanagerimp.cpp b/apps/openmw/mwlua/luamanagerimp.cpp
index 50d4d9c11d..bb84dc7989 100644
--- a/apps/openmw/mwlua/luamanagerimp.cpp
+++ b/apps/openmw/mwlua/luamanagerimp.cpp
@@ -136,7 +136,7 @@ namespace MWLua
         if (!mPlayer.isInCell() || !newPlayerPtr.isInCell() || mPlayer.getCell() != newPlayerPtr.getCell())
         {
             mPlayer = newPlayerPtr; // player was moved to another cell, update ptr in registry
-            MWBase::Environment::get().getWorldModel()->getPtrRegistry().insert(mPlayer);
+            MWBase::Environment::get().getWorldModel()->registerPtr(mPlayer);
         }
 
         mWorldView.update();
@@ -299,7 +299,7 @@ namespace MWLua
         if (localScripts)
         {
             mActiveLocalScripts.erase(localScripts);
-            if (!MWBase::Environment::get().getWorldModel()->getPtrRegistry().getOrDefault(getId(ptr)).isEmpty())
+            if (!MWBase::Environment::get().getWorldModel()->getPtr(getId(ptr)).isEmpty())
                 mEngineEvents.addToQueue(EngineEvents::OnInactive{ getId(ptr) });
         }
     }
@@ -401,7 +401,7 @@ namespace MWLua
             return;
         }
 
-        MWBase::Environment::get().getWorldModel()->getPtrRegistry().insert(ptr);
+        MWBase::Environment::get().getWorldModel()->registerPtr(ptr);
         LocalScripts* scripts = createLocalScripts(ptr);
 
         scripts->setSerializer(mLocalSerializer.get());
@@ -409,7 +409,7 @@ namespace MWLua
         scripts->load(data);
 
         // LiveCellRef is usually copied after loading, so this Ptr will become invalid and should be deregistered.
-        MWBase::Environment::get().getWorldModel()->getPtrRegistry().remove(ptr);
+        MWBase::Environment::get().getWorldModel()->deregisterPtr(ptr);
     }
 
     void LuaManager::reloadAllScripts()
@@ -430,7 +430,7 @@ namespace MWLua
             mGlobalScripts.load(data);
         }
 
-        for (const auto& [id, ptr] : MWBase::Environment::get().getWorldModel()->getPtrRegistry())
+        for (const auto& [id, ptr] : MWBase::Environment::get().getWorldModel()->getPtrRegistryView())
         { // Reload local scripts
             LocalScripts* scripts = ptr.getRefData().getLuaScripts();
             if (scripts == nullptr)
diff --git a/apps/openmw/mwlua/objectbindings.cpp b/apps/openmw/mwlua/objectbindings.cpp
index 5ad80c97eb..5e5c380469 100644
--- a/apps/openmw/mwlua/objectbindings.cpp
+++ b/apps/openmw/mwlua/objectbindings.cpp
@@ -497,7 +497,7 @@ namespace MWLua
                 while (it.getType() != -1)
                 {
                     const MWWorld::Ptr& item = *(it++);
-                    MWBase::Environment::get().getWorldModel()->getPtrRegistry().insert(item);
+                    MWBase::Environment::get().getWorldModel()->registerPtr(item);
                     list->push_back(getId(item));
                 }
                 return ObjectList<ObjectT>{ list };
@@ -516,7 +516,7 @@ namespace MWLua
                 {
                     if (item.getCellRef().getRefId() == itemId)
                     {
-                        MWBase::Environment::get().getWorldModel()->getPtrRegistry().insert(item);
+                        MWBase::Environment::get().getWorldModel()->registerPtr(item);
                         return ObjectT(getId(item));
                     }
                 }
@@ -531,7 +531,7 @@ namespace MWLua
                 {
                     if (item.getCellRef().getRefId() == itemId)
                     {
-                        MWBase::Environment::get().getWorldModel()->getPtrRegistry().insert(item);
+                        MWBase::Environment::get().getWorldModel()->registerPtr(item);
                         list->push_back(getId(item));
                     }
                 }
diff --git a/apps/openmw/mwlua/types/actor.cpp b/apps/openmw/mwlua/types/actor.cpp
index d1f0e1ec8c..bf0866bc0f 100644
--- a/apps/openmw/mwlua/types/actor.cpp
+++ b/apps/openmw/mwlua/types/actor.cpp
@@ -32,8 +32,7 @@ namespace MWLua
             MWWorld::Ptr itemPtr;
             if (std::holds_alternative<ObjectId>(item))
             {
-                itemPtr = MWBase::Environment::get().getWorldModel()->getPtrRegistry().getOrDefault(
-                    std::get<ObjectId>(item));
+                itemPtr = MWBase::Environment::get().getWorldModel()->getPtr(std::get<ObjectId>(item));
                 if (old_it != store.end() && *old_it == itemPtr)
                     return true; // already equipped
                 if (itemPtr.isEmpty() || itemPtr.getRefData().getCount() == 0
@@ -218,7 +217,7 @@ namespace MWLua
                 auto it = store.getSlot(slot);
                 if (it == store.end())
                     continue;
-                MWBase::Environment::get().getWorldModel()->getPtrRegistry().insert(*it);
+                MWBase::Environment::get().getWorldModel()->registerPtr(*it);
                 if (dynamic_cast<const GObject*>(&o))
                     equipment[slot] = sol::make_object(lua, GObject(*it));
                 else
@@ -234,7 +233,7 @@ namespace MWLua
             auto it = store.getSlot(slot);
             if (it == store.end())
                 return sol::nil;
-            MWBase::Environment::get().getWorldModel()->getPtrRegistry().insert(*it);
+            MWBase::Environment::get().getWorldModel()->registerPtr(*it);
             if (dynamic_cast<const GObject*>(&o))
                 return sol::make_object(lua, GObject(*it));
             else
diff --git a/apps/openmw/mwlua/worldview.cpp b/apps/openmw/mwlua/worldview.cpp
index 80f836c73b..f5699dff89 100644
--- a/apps/openmw/mwlua/worldview.cpp
+++ b/apps/openmw/mwlua/worldview.cpp
@@ -58,7 +58,7 @@ namespace MWLua
 
     void WorldView::objectAddedToScene(const MWWorld::Ptr& ptr)
     {
-        MWBase::Environment::get().getWorldModel()->getPtrRegistry().insert(ptr);
+        MWBase::Environment::get().getWorldModel()->registerPtr(ptr);
         ObjectGroup* group = chooseGroup(ptr);
         if (group)
             addToGroup(*group, ptr);
@@ -81,13 +81,13 @@ namespace MWLua
     void WorldView::load(ESM::ESMReader& esm)
     {
         esm.getHNT(mSimulationTime, "LUAW");
-        MWBase::Environment::get().getWorldModel()->getPtrRegistry().setLastGenerated(esm.getFormId(true));
+        MWBase::Environment::get().getWorldModel()->setLastGeneratedRefNum(esm.getFormId(true));
     }
 
     void WorldView::save(ESM::ESMWriter& esm) const
     {
         esm.writeHNT("LUAW", mSimulationTime);
-        esm.writeFormId(MWBase::Environment::get().getWorldModel()->getPtrRegistry().getLastGenerated(), true);
+        esm.writeFormId(MWBase::Environment::get().getWorldModel()->getLastGeneratedRefNum(), true);
     }
 
     void WorldView::ObjectGroup::updateList()
diff --git a/apps/openmw/mwscript/globalscripts.cpp b/apps/openmw/mwscript/globalscripts.cpp
index d95f9c40ae..60bf58953a 100644
--- a/apps/openmw/mwscript/globalscripts.cpp
+++ b/apps/openmw/mwscript/globalscripts.cpp
@@ -63,7 +63,7 @@ namespace
             if (pair.second.empty())
                 return MWWorld::Ptr();
             else if (pair.first.hasContentFile())
-                return MWBase::Environment::get().getWorldModel()->getPtrRegistry().getOrDefault(pair.first);
+                return MWBase::Environment::get().getWorldModel()->getPtr(pair.first);
             return MWBase::Environment::get().getWorld()->searchPtr(pair.second, false);
         }
     };
diff --git a/apps/openmw/mwworld/cellstore.cpp b/apps/openmw/mwworld/cellstore.cpp
index fef4ecb9c8..957f8174f6 100644
--- a/apps/openmw/mwworld/cellstore.cpp
+++ b/apps/openmw/mwworld/cellstore.cpp
@@ -272,7 +272,7 @@ namespace
                         iter->mData.enable();
                         MWBase::Environment::get().getWorld()->disable(ptr);
                     }
-                    MWBase::Environment::get().getWorldModel()->getPtrRegistry().insert(ptr);
+                    MWBase::Environment::get().getWorldModel()->registerPtr(ptr);
                     return;
                 }
 
@@ -287,7 +287,7 @@ namespace
         collection.mList.push_back(ref);
 
         MWWorld::LiveCellRefBase* base = &collection.mList.back();
-        MWBase::Environment::get().getWorldModel()->getPtrRegistry().insert(MWWorld::Ptr(base, cellstore));
+        MWBase::Environment::get().getWorldModel()->registerPtr(MWWorld::Ptr(base, cellstore));
     }
 
     // this function allows us to link a CellRefList<T> to the associated recNameInt, and apply a function
@@ -440,8 +440,7 @@ namespace MWWorld
             throw std::runtime_error(
                 "moveTo: can't move object from a non-loaded cell (how did you get this object anyway?)");
 
-        MWBase::Environment::get().getWorldModel()->getPtrRegistry().insert(
-            MWWorld::Ptr(object.getBase(), cellToMoveTo));
+        MWBase::Environment::get().getWorldModel()->registerPtr(MWWorld::Ptr(object.getBase(), cellToMoveTo));
 
         MovedRefTracker::iterator found = mMovedHere.find(object.getBase());
         if (found != mMovedHere.end())
@@ -1036,7 +1035,7 @@ namespace MWWorld
             }
 
             // Search for the reference. It might no longer exist if its content file was removed.
-            Ptr movedRef = MWBase::Environment::get().getWorldModel()->getPtrRegistry().getOrDefault(refnum);
+            Ptr movedRef = MWBase::Environment::get().getWorldModel()->getPtr(refnum);
             if (movedRef.isEmpty())
             {
                 Log(Debug::Warning) << "Warning: Dropping moved ref tag for " << refnum.mIndex
diff --git a/apps/openmw/mwworld/class.cpp b/apps/openmw/mwworld/class.cpp
index ee6f3cc1ab..28777656c8 100644
--- a/apps/openmw/mwworld/class.cpp
+++ b/apps/openmw/mwworld/class.cpp
@@ -375,7 +375,7 @@ namespace MWWorld
         newPtr.getCellRef().unsetRefNum(); // This RefNum is only valid within the original cell of the reference
         newPtr.getRefData().setCount(count);
         newPtr.getRefData().setLuaScripts(nullptr);
-        MWBase::Environment::get().getWorldModel()->getPtrRegistry().insert(newPtr);
+        MWBase::Environment::get().getWorldModel()->registerPtr(newPtr);
         if (hasInventoryStore(newPtr))
             getInventoryStore(newPtr).setActor(newPtr);
         return newPtr;
@@ -385,7 +385,7 @@ namespace MWWorld
     {
         Ptr newPtr = copyToCellImpl(ptr, cell);
         ptr.getRefData().setLuaScripts(nullptr);
-        MWBase::Environment::get().getWorldModel()->getPtrRegistry().insert(newPtr);
+        MWBase::Environment::get().getWorldModel()->registerPtr(newPtr);
         if (hasInventoryStore(newPtr))
             getInventoryStore(newPtr).setActor(newPtr);
         return newPtr;
diff --git a/apps/openmw/mwworld/containerstore.cpp b/apps/openmw/mwworld/containerstore.cpp
index 62285c29a6..5de939b6e9 100644
--- a/apps/openmw/mwworld/containerstore.cpp
+++ b/apps/openmw/mwworld/containerstore.cpp
@@ -308,7 +308,7 @@ MWWorld::ContainerStoreIterator MWWorld::ContainerStore::add(
 
     // The copy of the original item we just made
     MWWorld::Ptr item = *it;
-    MWBase::Environment::get().getWorldModel()->getPtrRegistry().insert(item);
+    MWBase::Environment::get().getWorldModel()->registerPtr(item);
 
     // we may have copied an item from the world, so reset a few things first
     item.getRefData().setBaseNode(
diff --git a/apps/openmw/mwworld/ptr.cpp b/apps/openmw/mwworld/ptr.cpp
index 2a64507348..1421b51a2a 100644
--- a/apps/openmw/mwworld/ptr.cpp
+++ b/apps/openmw/mwworld/ptr.cpp
@@ -24,7 +24,7 @@ namespace MWWorld
     SafePtr::SafePtr(const Ptr& ptr)
         : mId(ptr.getCellRef().getRefNum())
         , mPtr(ptr)
-        , mLastUpdate(MWBase::Environment::get().getWorldModel()->getPtrRegistry().getRevision())
+        , mLastUpdate(MWBase::Environment::get().getWorldModel()->getPtrRegistryRevision())
     {
     }
 
@@ -39,11 +39,11 @@ namespace MWWorld
 
     void SafePtr::update() const
     {
-        const PtrRegistry& registry = MWBase::Environment::get().getWorldModel()->getPtrRegistry();
-        if (mLastUpdate != registry.getRevision())
+        const WorldModel& worldModel = *MWBase::Environment::get().getWorldModel();
+        if (mLastUpdate != worldModel.getPtrRegistryRevision())
         {
-            mPtr = registry.getOrDefault(mId);
-            mLastUpdate = registry.getRevision();
+            mPtr = worldModel.getPtr(mId);
+            mLastUpdate = worldModel.getPtrRegistryRevision();
         }
     }
 }
diff --git a/apps/openmw/mwworld/ptrregistry.hpp b/apps/openmw/mwworld/ptrregistry.hpp
index 9acb3df3ca..c40ea8e434 100644
--- a/apps/openmw/mwworld/ptrregistry.hpp
+++ b/apps/openmw/mwworld/ptrregistry.hpp
@@ -20,7 +20,7 @@ namespace MWWorld
 
         auto end() const { return mIndex.cend(); }
 
-        Ptr getOrDefault(ESM::RefNum refNum) const
+        Ptr getOrEmpty(ESM::RefNum refNum) const
         {
             const auto it = mIndex.find(refNum);
             if (it != mIndex.end())
@@ -54,6 +54,22 @@ namespace MWWorld
         std::unordered_map<ESM::RefNum, Ptr> mIndex;
         ESM::RefNum mLastGenerated;
     };
+
+    class PtrRegistryView
+    {
+    public:
+        explicit PtrRegistryView(const PtrRegistry& ref)
+            : mPtr(&ref)
+        {
+        }
+
+        auto begin() const { return mPtr->begin(); }
+
+        auto end() const { return mPtr->end(); }
+
+    private:
+        const PtrRegistry* mPtr;
+    };
 }
 
 #endif
diff --git a/apps/openmw/mwworld/worldimp.cpp b/apps/openmw/mwworld/worldimp.cpp
index 681e623d34..5338980299 100644
--- a/apps/openmw/mwworld/worldimp.cpp
+++ b/apps/openmw/mwworld/worldimp.cpp
@@ -1853,8 +1853,7 @@ namespace MWWorld
 
         facedObject = rayToObject.mHitObject;
         if (facedObject.isEmpty() && rayToObject.mHitRefnum.isSet())
-            facedObject
-                = MWBase::Environment::get().getWorldModel()->getPtrRegistry().getOrDefault(rayToObject.mHitRefnum);
+            facedObject = MWBase::Environment::get().getWorldModel()->getPtr(rayToObject.mHitRefnum);
         if (rayToObject.mHit)
             mDistanceToFacedObject = (rayToObject.mRatio * maxDistance) - camDist;
         else
@@ -1871,8 +1870,7 @@ namespace MWWorld
         res.mHitNormal = rayRes.mHitNormalWorld;
         res.mHitObject = rayRes.mHitObject;
         if (res.mHitObject.isEmpty() && rayRes.mHitRefnum.isSet())
-            res.mHitObject
-                = MWBase::Environment::get().getWorldModel()->getPtrRegistry().getOrDefault(rayRes.mHitRefnum);
+            res.mHitObject = MWBase::Environment::get().getWorldModel()->getPtr(rayRes.mHitRefnum);
         return res.mHit;
     }
 
diff --git a/apps/openmw/mwworld/worldmodel.hpp b/apps/openmw/mwworld/worldmodel.hpp
index 53a46c78d1..cdbc458022 100644
--- a/apps/openmw/mwworld/worldmodel.hpp
+++ b/apps/openmw/mwworld/worldmodel.hpp
@@ -54,7 +54,19 @@ namespace MWWorld
 
         Ptr getPtr(const ESM::RefId& name);
 
-        PtrRegistry& getPtrRegistry() { return mPtrRegistry; }
+        Ptr getPtr(ESM::RefNum refNum) const { return mPtrRegistry.getOrEmpty(refNum); }
+
+        PtrRegistryView getPtrRegistryView() const { return PtrRegistryView(mPtrRegistry); }
+
+        ESM::RefNum getLastGeneratedRefNum() const { return mPtrRegistry.getLastGenerated(); }
+
+        void setLastGeneratedRefNum(ESM::RefNum v) { mPtrRegistry.setLastGenerated(v); }
+
+        std::size_t getPtrRegistryRevision() const { return mPtrRegistry.getRevision(); }
+
+        void registerPtr(const Ptr& ptr) { mPtrRegistry.insert(ptr); }
+
+        void deregisterPtr(const Ptr& ptr) { mPtrRegistry.remove(ptr); }
 
         template <typename Fn>
         void forEachLoadedCellStore(Fn&& fn)