diff --git a/languages.yml b/languages.yml
index ce85297..afa4758 100644
--- a/languages.yml
+++ b/languages.yml
@@ -1949,6 +1949,18 @@ GN:
   codemirror_mode: python
   codemirror_mime_type: text/x-python
   language_id: 302957008
+GSC:
+  type: programming
+  color: "#FF6800"
+  extensions:
+  - ".gsc"
+  - ".csc"
+  - ".gsh"
+  tm_scope: source.gsc
+  ace_mode: c_cpp
+  codemirror_mode: clike
+  codemirror_mime_type: text/x-csrc
+  language_id: 257856279
 Game Maker Language:
   type: programming
   color: "#71b417"
diff --git a/linguist b/linguist
index ba3451b..7469c79 160000
--- a/linguist
+++ b/linguist
@@ -1 +1 @@
-Subproject commit ba3451b81ea2af08d7212a483fc2023e1f33e4a6
+Subproject commit 7469c7982d93f2ad922230d712f586a353dc1a42
diff --git a/src/linguist_aliases.rs b/src/linguist_aliases.rs
index a2943ab..8f6a298 100644
--- a/src/linguist_aliases.rs
+++ b/src/linguist_aliases.rs
@@ -317,6 +317,7 @@ lazy_static! {
         ("gedcom".to_string(), "GEDCOM".to_string()),
         ("glsl".to_string(), "GLSL".to_string()),
         ("gn".to_string(), "GN".to_string()),
+        ("gsc".to_string(), "GSC".to_string()),
         (
             "game maker language".to_string(),
             "Game Maker Language".to_string()
diff --git a/src/linguist_extensions.rs b/src/linguist_extensions.rs
index add9941..8150306 100644
--- a/src/linguist_extensions.rs
+++ b/src/linguist_extensions.rs
@@ -289,6 +289,9 @@ lazy_static! {
         (".vshader".to_string(), "GLSL".to_string()),
         (".gn".to_string(), "GN".to_string()),
         (".gni".to_string(), "GN".to_string()),
+        (".gsc".to_string(), "GSC".to_string()),
+        (".csc".to_string(), "GSC".to_string()),
+        (".gsh".to_string(), "GSC".to_string()),
         (".kid".to_string(), "Genshi".to_string()),
         (".ebuild".to_string(), "Gentoo Ebuild".to_string()),
         (".eclass".to_string(), "Gentoo Eclass".to_string()),
diff --git a/tests/linguist.rs b/tests/linguist.rs
index 1af0304..7adbfda 100644
--- a/tests/linguist.rs
+++ b/tests/linguist.rs
@@ -5899,6 +5899,60 @@ mod gn {
     }
 }
 
+mod gsc {
+    use file_expert::guess;
+    use file_expert::Guess;
+    use std::path::Path;
+
+    #[test]
+    fn test_0() {
+        let path = Path::new(&"./samples/GSC/array_override_common.gsc");
+        let actual = guess(&path).unwrap();
+        let expected = Guess::Kind("GSC".to_string());
+        assert_eq!(actual, expected);
+    }
+
+    #[test]
+    fn test_1() {
+        let path = Path::new(&"./samples/GSC/zm_init.gsc");
+        let actual = guess(&path).unwrap();
+        let expected = Guess::Kind("GSC".to_string());
+        assert_eq!(actual, expected);
+    }
+
+    #[test]
+    fn test_2() {
+        let path = Path::new(&"./samples/GSC/_spiderbot_ride.csc");
+        let actual = guess(&path).unwrap();
+        let expected = Guess::Kind("GSC".to_string());
+        assert_eq!(actual, expected);
+    }
+
+    #[test]
+    fn test_3() {
+        let path = Path::new(&"./samples/GSC/struct.gsc");
+        let actual = guess(&path).unwrap();
+        let expected = Guess::Kind("GSC".to_string());
+        assert_eq!(actual, expected);
+    }
+
+    #[test]
+    fn test_4() {
+        let path = Path::new(&"./samples/GSC/array_override_common.gsh");
+        let actual = guess(&path).unwrap();
+        let expected = Guess::Kind("GSC".to_string());
+        assert_eq!(actual, expected);
+    }
+
+    #[test]
+    fn test_5() {
+        let path = Path::new(&"./samples/GSC/math_shared.gsc");
+        let actual = guess(&path).unwrap();
+        let expected = Guess::Kind("GSC".to_string());
+        assert_eq!(actual, expected);
+    }
+}
+
 mod game_maker_language {
     use file_expert::guess;
     use file_expert::Guess;