diff --git a/NHSE.Core/Strings/GameStrings.cs b/NHSE.Core/Strings/GameStrings.cs
index 5b720b7..85d6468 100644
--- a/NHSE.Core/Strings/GameStrings.cs
+++ b/NHSE.Core/Strings/GameStrings.cs
@@ -11,6 +11,7 @@ public sealed class GameStrings
         public readonly string[] itemlistdisplay;
         public readonly Dictionary<string, string> VillagerMap;
         public readonly List<ComboItem> ItemDataSource;
+        public readonly Dictionary<string, string> InternalNameTranslation = new Dictionary<string, string>();
 
         private string[] Get(string ident) => GameLanguage.GetStrings(ident, lang);
 
diff --git a/NHSE.Core/Structures/Records/LifeSupportAchievement.cs b/NHSE.Core/Structures/Records/LifeSupportAchievement.cs
index 1e2a795..1a7419d 100644
--- a/NHSE.Core/Structures/Records/LifeSupportAchievement.cs
+++ b/NHSE.Core/Structures/Records/LifeSupportAchievement.cs
@@ -20,7 +20,7 @@ public LifeSupportAchievement(short land, short player, ushort index, string nam
 
         private const string Unknown = "???";
 
-        private static readonly IReadOnlyDictionary<int, LifeSupportAchievement> Dictionary = new Dictionary<int, LifeSupportAchievement>
+        public static readonly IReadOnlyDictionary<int, LifeSupportAchievement> Dictionary = new Dictionary<int, LifeSupportAchievement>
         {
             {0x001, new LifeSupportAchievement( 3,   -1, 0001, "CatchFish"                   )}, // サカナを釣った
             {0x002, new LifeSupportAchievement( 3,   -1, 0002, "CatchInsect"                 )}, // ムシを捕まえた
diff --git a/NHSE.WinForms/Util/DevUtil.cs b/NHSE.WinForms/Util/DevUtil.cs
index 5a45ca6..ac325b0 100644
--- a/NHSE.WinForms/Util/DevUtil.cs
+++ b/NHSE.WinForms/Util/DevUtil.cs
@@ -1,4 +1,5 @@
 using System;
+using System.Collections.Generic;
 using System.IO;
 using System.Linq;
 using System.Windows.Forms;
@@ -25,6 +26,7 @@ public static void UpdateAll()
             IsUpdatingTranslations = true;
             DumpStringsMessage();
             UpdateTranslations();
+            UpdateInternalNameTranslations();
             IsUpdatingTranslations = false;
         }
 
@@ -91,12 +93,46 @@ private static void LoadSpecialForms()
             nameof(SettingsEditor),
         };
 
+        private static void UpdateInternalNameTranslations()
+        {
+            var langs = new[] { DefaultLanguage }.Concat(Languages);
+            var available = new[]
+            {
+                LifeSupportAchievement.Dictionary.Values.Select(z => z.Name),
+                EventFlagPlayer.List.Values.Select(z => z.Name),
+                EventFlagLand.List.Values.Select(z => z.Name),
+                EventFlagVillager.List.Values.Select(z => z.Name),
+            }.SelectMany(z => z);
+
+            var translatables = new HashSet<string>(available);
+            foreach (var lang in langs)
+            {
+                var str = GameInfo.GetStrings(lang);
+                var dict = str.InternalNameTranslation;
+
+                var oldKeys = dict
+                    .Where(kvp => translatables.Contains(kvp.Key));
+                var newKeys = translatables
+                    .Where(key => !dict.ContainsKey(key))
+                    .Select(z => new KeyValuePair<string, string>(z, z));
+
+                var allKeys = oldKeys.Concat(newKeys);
+
+                var newDict = allKeys.ToDictionary(kvp => kvp.Key, kvp => kvp.Value);
+
+                var result = newDict.Select(z => $"{z.Key}={z.Value}");
+                var dir = GetResourcePath();
+                var location = GetFileLocationInText("internal", dir, lang);
+                File.WriteAllLines(location, result);
+            }
+        }
+
         private static void DumpStringsMessage() => DumpStrings(typeof(MessageStrings));
 
         private static void DumpStrings(Type t)
         {
-            var dir = GetResourcePath();
             var langs = new[] { DefaultLanguage }.Concat(Languages);
+            var dir = GetResourcePath();
             foreach (var lang in langs)
             {
                 TranslationUtil.SetLocalization(t, lang);
diff --git a/NHSE.WinForms/Util/TranslationUtil.cs b/NHSE.WinForms/Util/TranslationUtil.cs
index b33c7f3..e013683 100644
--- a/NHSE.WinForms/Util/TranslationUtil.cs
+++ b/NHSE.WinForms/Util/TranslationUtil.cs
@@ -84,6 +84,25 @@ private static void SetLocalization(Type t, IReadOnlyCollection<string> lines)
             }
         }
 
+        /// <summary>
+        /// Applies localization to a static class containing language-specific strings.
+        /// </summary>
+        /// <param name="dict">Dictionary of translatable strings</param>
+        /// <param name="lines">Lines containing the localized strings</param>
+        private static void SetLocalization(IDictionary<string, string> dict, IReadOnlyCollection<string> lines)
+        {
+            if (lines.Count == 0)
+                return;
+            foreach (var line in lines)
+            {
+                var index = line.IndexOf(TranslationSplitter);
+                if (index < 0)
+                    continue;
+                var prop = line.Substring(0, index);
+                dict[prop] = line.Substring(index + 1);
+            }
+        }
+
         /// <summary>
         /// Applies localization to a static class containing language-specific strings.
         /// </summary>
@@ -105,5 +124,11 @@ public static void SetLocalization(Type t, string currentCultureCode)
         {
             SetLocalization(t, t.Name, currentCultureCode);
         }
+
+        public static void SetLocalization(IDictionary<string, string> dict, string currentCultureCode)
+        {
+            var lines = ResourceUtil.GetStringList($"internal_{currentCultureCode}");
+            SetLocalization(dict, lines);
+        }
     }
 }