diff --git a/assets/base/lang/ja_jp/base_blocks.json b/assets/base/lang/ja_jp/base_blocks.json
index 73a77cc2..a1821977 100644
--- a/assets/base/lang/ja_jp/base_blocks.json
+++ b/assets/base/lang/ja_jp/base_blocks.json
@@ -140,5 +140,18 @@
     "base:hazard::safety": "安全テープブロック",
     "base:door_iron": "鉄のドア",
     "base:ladder_aluminium": "アルミのはしご",
-    "base:table_pedestal_glass": "ガラスの台座"
+    "base:table_pedestal_glass": "ガラスの台座",
+    "base:aluminium_handrail": "アルミの手すり",
+    "base:aluminium_walkway": "アルミの歩道",
+    "base:door_steel": "鋼のドア",
+    "base:iron_handrail": "鉄の手すり",
+    "base:iron_walkway": "鉄の歩道",
+    "base:ladder_steel": "鋼のはしご",
+    "base:splitter_belt": "スプリッターベルト",
+    "base:steel_handrail": "鋼の手すり",
+    "base:steel_panel": "鋼ブロック",
+    "base:steel_walkway": "鋼の歩道",
+    "base:structure_loader": "ストラクチャーローダー",
+    "base:structure_saver": "ストラクチャーセーバー",
+    "base:piston::heavy": "重量ピストン"  
 }
diff --git a/assets/base/lang/ja_jp/base_items.json b/assets/base/lang/ja_jp/base_items.json
index e4195b90..b3dc432c 100644
--- a/assets/base/lang/ja_jp/base_items.json
+++ b/assets/base/lang/ja_jp/base_items.json
@@ -45,5 +45,6 @@
     "base:wood_chips": "ウッドチップ",
     "base:wood_pulp": "木材パルプ",
     "base:cardboard_sheet": "段ボールシート",
-    "base:rotor_blades": "ローターブレード"
+    "base:rotor_blades": "ローターブレード",
+    "base:ingot_steel": "鋼インゴット"
 }
diff --git a/assets/base/lang/ja_jp/game.json b/assets/base/lang/ja_jp/game.json
index 79964a61..49a4d15e 100644
--- a/assets/base/lang/ja_jp/game.json
+++ b/assets/base/lang/ja_jp/game.json
@@ -136,5 +136,14 @@
   "worldDescriptionGenerator": "ワールドタイプ: ",
   "worldDescriptionDefaultText": "ワールドの説明を入力...",
   "worldSelectPlayWorld": "プレイ",
-  "worldSelectSaveChanges": "変更内容を保存"
+  "worldSelectSaveChanges": "変更内容を保存",
+  "loadingAssets": "アセット",
+  "loadingWorld": "ワールド",
+  "multiplayerServerName": "サーバー名: ",
+  "multiplayerAddServer": "サーバーを追加",
+  "multiplayerNewServerDefaultName": "新しいサーバー",
+  "multiplayerDeleteServer": "サーバーを削除",
+  "multiplayerDeleteConfirmPrompt": "{0}を削除しますか?",
+  "multiplayerEditServer": "サーバーの編集",
+  "genericSelectionSearch": "検索..."
 }