diff --git a/Barotrauma/BarotraumaShared/SharedSource/LuaCs/Data/EPlatformsTargets.cs b/Barotrauma/BarotraumaShared/SharedSource/LuaCs/Data/EPlatformsTargets.cs
new file mode 100644
index 0000000000..03eab0da66
--- /dev/null
+++ b/Barotrauma/BarotraumaShared/SharedSource/LuaCs/Data/EPlatformsTargets.cs
@@ -0,0 +1,18 @@
+using System;
+
+namespace Barotrauma.LuaCs.Data;
+
+[Flags]
+public enum Platform
+{
+    Linux=0x1, 
+    OSX=0x2, 
+    Windows=0x4
+}
+    
+[Flags]
+public enum Target
+{
+    Client=0x1, 
+    Server=0x2
+}
diff --git a/Barotrauma/BarotraumaShared/SharedSource/LuaCs/Data/IAssemblyResourceInfo.cs b/Barotrauma/BarotraumaShared/SharedSource/LuaCs/Data/IAssemblyResourceInfo.cs
index 8b2dc3859d..53ca993c0a 100644
--- a/Barotrauma/BarotraumaShared/SharedSource/LuaCs/Data/IAssemblyResourceInfo.cs
+++ b/Barotrauma/BarotraumaShared/SharedSource/LuaCs/Data/IAssemblyResourceInfo.cs
@@ -30,18 +30,3 @@ public interface IAssemblyResourceInfo
     /// </summary>
     public Target Targets { get; }
 }
-
-[Flags]
-public enum Platform
-{
-    Linux=0x1, 
-    OSX=0x2, 
-    Windows=0x4
-}
-    
-[Flags]
-public enum Target
-{
-    Client=0x1, 
-    Server=0x2
-}
diff --git a/Barotrauma/BarotraumaShared/SharedSource/LuaCs/Data/IConfigDefinitionInfo.cs b/Barotrauma/BarotraumaShared/SharedSource/LuaCs/Data/IConfigDefinitionInfo.cs
index 8beaa02b97..801086e27a 100644
--- a/Barotrauma/BarotraumaShared/SharedSource/LuaCs/Data/IConfigDefinitionInfo.cs
+++ b/Barotrauma/BarotraumaShared/SharedSource/LuaCs/Data/IConfigDefinitionInfo.cs
@@ -12,9 +12,12 @@ public interface IConfigDefinitionInfo
     public string ImageIcon { get; }
     public ConfigDataType Type { get; }
     public string DefaultValue { get; }
+    
 }
 
 public enum ConfigDataType
 {
-    
+    Boolean, Int32, Int64, Single, Double, String,
+    Color, Vector2, Vector3, List,
+    RangeInt32, RangeSingle, ControlInput
 }
diff --git a/Barotrauma/BarotraumaShared/SharedSource/LuaCs/Data/ILocalizationResourceInfo.cs b/Barotrauma/BarotraumaShared/SharedSource/LuaCs/Data/ILocalizationResourceInfo.cs
new file mode 100644
index 0000000000..ce3c37cf5d
--- /dev/null
+++ b/Barotrauma/BarotraumaShared/SharedSource/LuaCs/Data/ILocalizationResourceInfo.cs
@@ -0,0 +1,10 @@
+using System.Collections.Immutable;
+using System.Globalization;
+
+namespace Barotrauma.LuaCs.Data;
+
+public interface ILocalizationResourceInfo
+{
+    CultureInfo TargetCulture { get; }
+    ImmutableArray<string> FilePaths { get; }
+}
diff --git a/Barotrauma/BarotraumaShared/SharedSource/LuaCs/Data/ModConfigData.cs b/Barotrauma/BarotraumaShared/SharedSource/LuaCs/Data/ModConfigData.cs
index e136b07162..ba176a3756 100644
--- a/Barotrauma/BarotraumaShared/SharedSource/LuaCs/Data/ModConfigData.cs
+++ b/Barotrauma/BarotraumaShared/SharedSource/LuaCs/Data/ModConfigData.cs
@@ -1,6 +1,7 @@
 using System;
 using System.Collections.Generic;
 using System.Collections.Immutable;
+using System.Globalization;
 
 namespace Barotrauma.LuaCs.Data;
 
@@ -10,8 +11,14 @@ public readonly struct ModConfigData
     
     public DependencyInfo[] Dependencies { get; init; }
     public AssemblyResourceInfo[] LoadableAssemblies { get; init; }
+    public LocalizationResourceInfo[] LocalizationFiles { get; init; }
 
-
+    public readonly struct LocalizationResourceInfo : ILocalizationResourceInfo
+    {
+        public CultureInfo TargetCulture { get; init; }
+        public ImmutableArray<string> FilePaths { get; init; }
+    }
+    
     public readonly struct ConfigInitData
     {
         // TODO: complete struct, data here should be already parsed and ready-to-use by the config service.    
diff --git a/Barotrauma/BarotraumaShared/SharedSource/LuaCs/Services/ILocalizationService.cs b/Barotrauma/BarotraumaShared/SharedSource/LuaCs/Services/ILocalizationService.cs
index ba650e5c1a..4bc44757c4 100644
--- a/Barotrauma/BarotraumaShared/SharedSource/LuaCs/Services/ILocalizationService.cs
+++ b/Barotrauma/BarotraumaShared/SharedSource/LuaCs/Services/ILocalizationService.cs
@@ -1,12 +1,18 @@
 using System;
+using System.Globalization;
 using System.Collections.Generic;
 
 namespace Barotrauma.LuaCs.Services;
 
 public interface ILocalizationService : IService
 {
-    bool TryLoadFiles(in string[] filePaths);
+    IReadOnlyCollection<CultureInfo> GetLoadedLocales();
+    bool TryLoadXmlFiles(in string[] filePaths, CultureInfo defaultCulture);
     void UnloadAll();
+    bool TrySetCurrentCulture(CultureInfo culture);
+    bool TrySetCurrentCulture(string cultureName);
     string GetLocalizedString(string key, string fallback);
-    string GetLocalizedString(string key, Func<string, string> fbValueFactory);
+    string GetLocalizedString(string key, CultureInfo targetCulture);
+    bool TryRegisterLocalizationResolver(CultureInfo targetCulture, Func<string, CultureInfo, string> factoryResolver);
+    bool ReplaceSymbols(string text, string symbolExpr);
 }