diff --git a/gemp-lotr/gemp-lotr-logic/pom.xml b/gemp-lotr/gemp-lotr-logic/pom.xml
index 0b2ed0aa8..8829e633c 100644
--- a/gemp-lotr/gemp-lotr-logic/pom.xml
+++ b/gemp-lotr/gemp-lotr-logic/pom.xml
@@ -43,6 +43,16 @@
             <artifactId>commons-lang</artifactId>
             <version>2.5</version>
         </dependency>
+        <dependency>
+            <groupId>org.hjson</groupId>
+            <artifactId>hjson</artifactId>
+            <version>3.0.0</version>
+        </dependency>
+        <dependency>
+            <groupId>com.alibaba</groupId>
+            <artifactId>fastjson</artifactId>
+            <version>2.0.7</version>
+        </dependency>
     </dependencies>
 
 </project>
\ No newline at end of file
diff --git a/gemp-lotr/gemp-lotr-logic/src/main/java/com/gempukku/lotro/game/LotroCardBlueprintLibrary.java b/gemp-lotr/gemp-lotr-logic/src/main/java/com/gempukku/lotro/game/LotroCardBlueprintLibrary.java
index 9e6bb997d..707b38ab7 100644
--- a/gemp-lotr/gemp-lotr-logic/src/main/java/com/gempukku/lotro/game/LotroCardBlueprintLibrary.java
+++ b/gemp-lotr/gemp-lotr-logic/src/main/java/com/gempukku/lotro/game/LotroCardBlueprintLibrary.java
@@ -3,7 +3,9 @@ package com.gempukku.lotro.game;
 import com.gempukku.lotro.cards.build.InvalidCardDefinitionException;
 import com.gempukku.lotro.cards.build.LotroCardBlueprintBuilder;
 import com.gempukku.lotro.game.packs.SetDefinition;
+import org.apache.commons.io.FilenameUtils;
 import org.apache.log4j.Logger;
+import org.hjson.JsonValue;
 import org.json.simple.JSONObject;
 import org.json.simple.parser.JSONParser;
 import org.json.simple.parser.ParseException;
@@ -84,17 +86,26 @@ public class LotroCardBlueprintLibrary {
     }
 
     private void loadCards(File path, boolean initial) {
-        if (path.isFile())
+        if (path.isFile()) {
             loadCardsFromFile(path, initial);
-        else if (path.isDirectory())
-            for (File file : path.listFiles())
+        }
+        else if (path.isDirectory()) {
+            for (File file : path.listFiles()) {
                 loadCards(file, initial);
+            }
+        }
     }
 
     private void loadCardsFromFile(File file, boolean validateNew) {
+        String ext = FilenameUtils.getExtension(file.getName());
+        if (!ext.equalsIgnoreCase("json") && !ext.equalsIgnoreCase("hjson"))
+            return;
+
         JSONParser parser = new JSONParser();
         try (Reader reader = new InputStreamReader(new FileInputStream(file), "UTF-8")) {
-            final JSONObject cardsFile = (JSONObject) parser.parse(reader);
+            //This will read both json and hjson, producing standard json
+            String json = JsonValue.readHjson(reader).toString();
+            final JSONObject cardsFile = (JSONObject) parser.parse(json);
             final Set<Map.Entry<String, JSONObject>> cardsInFile = cardsFile.entrySet();
             for (Map.Entry<String, JSONObject> cardEntry : cardsInFile) {
                 String blueprint = cardEntry.getKey();