diff --git a/docs/supportedsites.md b/docs/supportedsites.md
index e5665688..9b2a4bc5 100644
--- a/docs/supportedsites.md
+++ b/docs/supportedsites.md
@@ -1499,6 +1499,12 @@ Consider all listed sites to potentially be NSFW.
     <td>Articles</td>
     <td></td>
 </tr>
+<tr>
+    <td>wiki.gg</td>
+    <td>https://www.wiki.gg/</td>
+    <td>Articles</td>
+    <td></td>
+</tr>
 <tr>
     <td>Super Mario Wiki</td>
     <td>https://www.mariowiki.com/</td>
diff --git a/gallery_dl/extractor/wikimedia.py b/gallery_dl/extractor/wikimedia.py
index 4976c078..9370cfb5 100644
--- a/gallery_dl/extractor/wikimedia.py
+++ b/gallery_dl/extractor/wikimedia.py
@@ -27,9 +27,9 @@ class WikimediaExtractor(BaseExtractor):
 
         if self.category == "wikimedia":
             self.category = self.root.split(".")[-2]
-        elif self.category == "fandom":
-            self.category = \
-                "fandom-" + self.root.partition(".")[0].rpartition("/")[2]
+        elif self.category in ("fandom", "wikigg"):
+            self.category = "{}-{}".format(
+                self.category, self.root.partition(".")[0].rpartition("/")[2])
 
         if path.startswith("wiki/"):
             path = path[5:]
@@ -152,6 +152,10 @@ BASE_PATTERN = WikimediaExtractor.update({
         "root": None,
         "pattern": r"[\w-]+\.fandom\.com",
     },
+    "wikigg": {
+        "root": None,
+        "pattern": r"\w+\.wiki\.gg",
+    },
     "mariowiki": {
         "root": "https://www.mariowiki.com",
         "pattern": r"(?:www\.)?mariowiki\.com",
diff --git a/scripts/supportedsites.py b/scripts/supportedsites.py
index 9748f00a..04b421c4 100755
--- a/scripts/supportedsites.py
+++ b/scripts/supportedsites.py
@@ -143,6 +143,7 @@ CATEGORY_MAP = {
     "webmshare"      : "webmshare",
     "webtoons"       : "Webtoon",
     "wikiart"        : "WikiArt.org",
+    "wikigg"         : "wiki.gg",
     "wikimediacommons": "Wikimedia Commons",
     "xbunkr"         : "xBunkr",
     "xhamster"       : "xHamster",
diff --git a/test/results/wikigg.py b/test/results/wikigg.py
new file mode 100644
index 00000000..ffc5cb70
--- /dev/null
+++ b/test/results/wikigg.py
@@ -0,0 +1,24 @@
+# -*- coding: utf-8 -*-
+
+# This program is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License version 2 as
+# published by the Free Software Foundation.
+
+from gallery_dl.extractor import wikimedia
+
+
+__tests__ = (
+{
+    "#url"     : "https://www.wiki.gg/wiki/Title",
+    "#comment" : "for scripts/supportedsites.py",
+    "#category": ("wikimedia", "wikigg-www", "article"),
+    "#class"   : wikimedia.WikimediaArticleExtractor,
+},
+
+{
+    "#url"     : "https://hearthstone.wiki.gg/wiki/Flame_Juggler",
+    "#category": ("wikimedia", "wikigg-hearthstone", "article"),
+    "#class"   : wikimedia.WikimediaArticleExtractor,
+},
+
+)