diff --git a/Source/Editor/Cooker/CookingData.h b/Source/Editor/Cooker/CookingData.h
index 779b472a0..ef12d204e 100644
--- a/Source/Editor/Cooker/CookingData.h
+++ b/Source/Editor/Cooker/CookingData.h
@@ -285,24 +285,22 @@ public:
         /// <summary>
         /// The total assets amount in the build.
         /// </summary>
-        int32 TotalAssets;
+        int32 TotalAssets = 0;
 
         /// <summary>
         /// The cooked assets (TotalAssets - CookedAssets is amount of reused cached assets).
         /// </summary>
-        int32 CookedAssets;
+        int32 CookedAssets = 0;
 
         /// <summary>
-        /// The final output content size in MB.
+        /// The final output content size (in bytes).
         /// </summary>
-        int32 ContentSizeMB;
+        uint64 ContentSize = 0;
 
         /// <summary>
         /// The asset type stats. Key is the asset typename, value is the stats container.
         /// </summary>
         Dictionary<String, AssetTypeStatistics> AssetStats;
-
-        Statistics();
     };
 
     /// <summary>
@@ -328,6 +326,11 @@ public:
     /// </summary>
     HashSet<Guid> Assets;
 
+    /// <summary>
+    /// The final files collection to include in build (valid only after CollectAssetsStep).
+    /// </summary>
+    HashSet<String> Files;
+
     struct BinaryModuleInfo
     {
         String Name;
diff --git a/Source/Editor/Cooker/GameCooker.cpp b/Source/Editor/Cooker/GameCooker.cpp
index ba6dd012c..118dd397f 100644
--- a/Source/Editor/Cooker/GameCooker.cpp
+++ b/Source/Editor/Cooker/GameCooker.cpp
@@ -202,13 +202,6 @@ bool CookingData::AssetTypeStatistics::operator<(const AssetTypeStatistics& othe
     return Count > other.Count;
 }
 
-CookingData::Statistics::Statistics()
-{
-    TotalAssets = 0;
-    CookedAssets = 0;
-    ContentSizeMB = 0;
-}
-
 CookingData::CookingData(const SpawnParams& params)
     : ScriptingObject(params)
 {
diff --git a/Source/Editor/Cooker/Steps/CollectAssetsStep.cpp b/Source/Editor/Cooker/Steps/CollectAssetsStep.cpp
index 4787339e6..55e8b5037 100644
--- a/Source/Editor/Cooker/Steps/CollectAssetsStep.cpp
+++ b/Source/Editor/Cooker/Steps/CollectAssetsStep.cpp
@@ -29,7 +29,7 @@ bool CollectAssetsStep::Perform(CookingData& data)
     while (assetsQueue.HasItems())
     {
         BUILD_STEP_CANCEL_CHECK;
-        const auto assetId = assetsQueue.Dequeue();
+        const Guid assetId = assetsQueue.Dequeue();
 
         // Skip already processed or invalid assets
         if (!assetId.IsValid()
@@ -68,6 +68,11 @@ bool CollectAssetsStep::Perform(CookingData& data)
         asset->GetReferences(references, files);
         asset->Locker.Unlock();
         assetsQueue.Add(references);
+        for (String& file : files)
+        {
+            if (file.HasChars())
+                data.Files.Add(MoveTemp(file));
+        }
     }
 
     data.Stats.TotalAssets = data.Assets.Count();
diff --git a/Source/Editor/Cooker/Steps/CookAssetsStep.cpp b/Source/Editor/Cooker/Steps/CookAssetsStep.cpp
index 2558181aa..52050708e 100644
--- a/Source/Editor/Cooker/Steps/CookAssetsStep.cpp
+++ b/Source/Editor/Cooker/Steps/CookAssetsStep.cpp
@@ -891,7 +891,6 @@ bool CookAssetsStep::Process(CookingData& data, CacheData& cache, JsonAssetBase*
 class PackageBuilder : public NonCopyable
 {
 private:
-
     int32 _packageIndex;
     int32 MaxAssetsPerPackage;
     int32 MaxPackageSize;
@@ -904,7 +903,6 @@ private:
     uint64 packagesSizeTotal;
 
 public:
-
     /// <summary>
     /// Initializes a new instance of the <see cref="PackageBuilder" /> class.
     /// </summary>
@@ -933,7 +931,6 @@ public:
     }
 
 public:
-
     uint64 GetPackagesSizeTotal() const
     {
         return packagesSizeTotal;
@@ -1042,8 +1039,11 @@ bool CookAssetsStep::Perform(CookingData& data)
     float Step1ProgressEnd = 0.6f;
     String Step1Info = TEXT("Cooking assets");
     float Step2ProgressStart = Step1ProgressEnd;
-    float Step2ProgressEnd = 0.9f;
-    String Step2Info = TEXT("Packaging assets");
+    float Step2ProgressEnd = 0.8f;
+    String Step2Info = TEXT("Cooking files");
+    float Step3ProgressStart = Step2ProgressStart;
+    float Step3ProgressEnd = 0.9f;
+    String Step3Info = TEXT("Packaging assets");
 
     data.StepProgress(TEXT("Loading build cache"), 0);
 
@@ -1100,11 +1100,14 @@ bool CookAssetsStep::Perform(CookingData& data)
 #endif
     int32 subStepIndex = 0;
     AssetReference<Asset> assetRef;
-    assetRef.Unload.Bind([]() { LOG(Error, "Asset gets unloaded while cooking it!"); Platform::Sleep(100); });
+    assetRef.Unload.Bind([]
+    {
+        LOG(Error, "Asset got unloaded while cooking it!");
+        Platform::Sleep(100);
+    });
     for (auto i = data.Assets.Begin(); i.IsNotEnd(); ++i)
     {
         BUILD_STEP_CANCEL_CHECK;
-
         data.StepProgress(Step1Info, Math::Lerp(Step1ProgressStart, Step1ProgressEnd, static_cast<float>(subStepIndex++) / data.Assets.Count()));
         const Guid assetId = i->Item;
 
@@ -1184,6 +1187,35 @@ bool CookAssetsStep::Perform(CookingData& data)
     // Save build cache header
     cache.Save(data);
 
+    // Process all files
+    for (auto i = data.Files.Begin(); i.IsNotEnd(); ++i)
+    {
+        BUILD_STEP_CANCEL_CHECK;
+        data.StepProgress(Step2Info, Math::Lerp(Step2ProgressStart, Step2ProgressEnd, (float)subStepIndex++ / data.Files.Count()));
+        const String& filePath = i->Item;
+
+        // Calculate destination path
+        String cookedPath = data.DataOutputPath;
+        if (FileSystem::IsRelative(filePath))
+            cookedPath /= filePath;
+        else
+            cookedPath /= String(TEXT("Content")) / StringUtils::GetFileName(filePath);
+
+        // Copy file
+        if (!FileSystem::FileExists(cookedPath) || FileSystem::GetFileLastEditTime(cookedPath) >= FileSystem::GetFileLastEditTime(filePath))
+        {
+            if (FileSystem::CreateDirectory(StringUtils::GetDirectoryName(cookedPath)))
+                return true;
+            if (FileSystem::CopyFile(cookedPath, filePath))
+                return true;
+        }
+
+        // Count stats of file extension
+        auto& assetStats = data.Stats.AssetStats[FileSystem::GetExtension(cookedPath)];
+        assetStats.Count++;
+        assetStats.ContentSize += FileSystem::GetFileSize(cookedPath);
+    }
+
     // Create build game header
     {
         GameHeaderFlags gameFlags = GameHeaderFlags::None;
@@ -1229,13 +1261,11 @@ bool CookAssetsStep::Perform(CookingData& data)
         for (auto i = AssetsRegistry.Begin(); i.IsNotEnd(); ++i)
         {
             BUILD_STEP_CANCEL_CHECK;
-
-            data.StepProgress(Step2Info, Math::Lerp(Step2ProgressStart, Step2ProgressEnd, static_cast<float>(subStepIndex++) / AssetsRegistry.Count()));
+            data.StepProgress(Step3Info, Math::Lerp(Step3ProgressStart, Step3ProgressEnd, (float)subStepIndex++ / AssetsRegistry.Count()));
             const auto assetId = i->Key;
 
             String cookedFilePath;
             cache.GetFilePath(assetId, cookedFilePath);
-
             if (!FileSystem::FileExists(cookedFilePath))
             {
                 LOG(Warning, "Missing cooked file for asset \'{0}\'", assetId);
@@ -1253,12 +1283,12 @@ bool CookAssetsStep::Perform(CookingData& data)
             return true;
         for (auto& e : data.Stats.AssetStats)
             e.Value.TypeName = e.Key;
-        data.Stats.ContentSizeMB = static_cast<int32>(packageBuilder.GetPackagesSizeTotal() / (1024 * 1024));
+        data.Stats.ContentSize += packageBuilder.GetPackagesSizeTotal();
     }
 
     BUILD_STEP_CANCEL_CHECK;
 
-    data.StepProgress(TEXT("Creating assets cache"), Step2ProgressEnd);
+    data.StepProgress(TEXT("Creating assets cache"), Step3ProgressEnd);
 
     // Create asset paths mapping for the assets.
     // Assets mapping is use to convert paths used in Content::Load(path) into the asset id.
@@ -1291,7 +1321,7 @@ bool CookAssetsStep::Perform(CookingData& data)
     }
 
     // Print stats
-    LOG(Info, "Cooked {0} assets, total assets: {1}, total content packages size: {2} MB", data.Stats.CookedAssets, AssetsRegistry.Count(), data.Stats.ContentSizeMB);
+    LOG(Info, "Cooked {0} assets, total assets: {1}, total content packages size: {2} MB", data.Stats.CookedAssets, AssetsRegistry.Count(), (int32)(data.Stats.ContentSize / (1024 * 1024)));
     {
         Array<CookingData::AssetTypeStatistics> assetTypes;
         data.Stats.AssetStats.GetValues(assetTypes);
diff --git a/Source/Engine/Content/JsonAsset.cpp b/Source/Engine/Content/JsonAsset.cpp
index e9960d424..a06e53350 100644
--- a/Source/Engine/Content/JsonAsset.cpp
+++ b/Source/Engine/Content/JsonAsset.cpp
@@ -125,14 +125,26 @@ void FindIds(ISerializable::DeserializeStream& node, Array<Guid>& output, Array<
             FindIds(node[i], output, files);
         }
     }
-    else if (node.IsString())
+    else if (node.IsString() && node.GetStringLength() != 0)
     {
         if (node.GetStringLength() == 32)
         {
             // Try parse as Guid in format `N` (32 hex chars)
             Guid id;
             if (!Guid::Parse(node.GetStringAnsiView(), id))
+            {
                 output.Add(id);
+                return;
+            }
+        }
+        if (node.GetStringLength() < 512)
+        {
+            // Try to detect file paths
+            String path = node.GetText();
+            if (FileSystem::FileExists(path))
+            {
+                files.Add(MoveTemp(path));
+            }
         }
     }
 }