diff --git a/src/modules/languages-syntax-highlighting/src/eepp/ui/doc/languages/cmakecache.cpp b/src/modules/languages-syntax-highlighting/src/eepp/ui/doc/languages/cmakecache.cpp
new file mode 100644
index 000000000..0471c1796
--- /dev/null
+++ b/src/modules/languages-syntax-highlighting/src/eepp/ui/doc/languages/cmakecache.cpp
@@ -0,0 +1,37 @@
+#include <eepp/ui/doc/languages/cmakecache.hpp>
+#include <eepp/ui/doc/syntaxdefinitionmanager.hpp>
+
+namespace EE { namespace UI { namespace Doc { namespace Language {
+
+SyntaxDefinition& addCMakeCache() {
+
+	return SyntaxDefinitionManager::instance()->add(
+
+		{ "CMakeCache",
+		  { "^CMakeCache.txt$" },
+		  {
+			  { { "//+.*$|#+.*$" }, "comment", "", SyntaxPatternMatchType::RegEx },
+			  { { "\\b-ADVANCED\\b" }, "keyword", "", SyntaxPatternMatchType::RegEx },
+			  { { "%f[^=].*" }, "string" },
+			  { { "\\b(?i:(YES|NO|ON|OFF|TRUE|FALSE|Y|N|\\d+))$" },
+				"literal",
+				"",
+				SyntaxPatternMatchType::RegEx },
+			  { { "\\b(?i:([.\\w_-]+))\\b" }, "parameter", "", SyntaxPatternMatchType::RegEx },
+			  { { "(:)(BOOL|STRING|FILEPATH|PATH|STATIC|INTERNAL)(=)" },
+				{ "operator", "type", "operator" },
+				{},
+				"",
+				SyntaxPatternMatchType::RegEx },
+
+		  },
+		  {
+
+		  },
+		  "",
+		  {}
+
+		} );
+}
+
+}}}} // namespace EE::UI::Doc::Language
diff --git a/src/modules/languages-syntax-highlighting/src/eepp/ui/doc/languages/cmakecache.hpp b/src/modules/languages-syntax-highlighting/src/eepp/ui/doc/languages/cmakecache.hpp
new file mode 100644
index 000000000..4baee3d83
--- /dev/null
+++ b/src/modules/languages-syntax-highlighting/src/eepp/ui/doc/languages/cmakecache.hpp
@@ -0,0 +1,11 @@
+#ifndef EE_UI_DOC_Cmakecache
+#define EE_UI_DOC_Cmakecache
+#include <eepp/ui/doc/syntaxdefinition.hpp>
+
+namespace EE { namespace UI { namespace Doc { namespace Language {
+
+extern SyntaxDefinition& addCMakeCache();
+
+}}}} // namespace EE::UI::Doc::Language
+
+#endif
diff --git a/src/modules/languages-syntax-highlighting/src/eepp/ui/doc/languages/rcscript.cpp b/src/modules/languages-syntax-highlighting/src/eepp/ui/doc/languages/rcscript.cpp
index 094b42475..ad4a52a9d 100644
--- a/src/modules/languages-syntax-highlighting/src/eepp/ui/doc/languages/rcscript.cpp
+++ b/src/modules/languages-syntax-highlighting/src/eepp/ui/doc/languages/rcscript.cpp
@@ -9,7 +9,7 @@ SyntaxDefinition& addRcscript() {
 		->add(
 
 			{ "RC Script",
-			  { "%.rc$", "%.rc2$" },
+			  { "%.rc$", "%.rc2$", "%.dlg$" },
 			  {
 				  { { "include", "#comments" },
 					{ "normal" },
diff --git a/src/modules/languages-syntax-highlighting/src/eepp/ui/doc/languagessyntaxhighlighting.cpp b/src/modules/languages-syntax-highlighting/src/eepp/ui/doc/languagessyntaxhighlighting.cpp
index 04d9e98bb..a53967d4b 100644
--- a/src/modules/languages-syntax-highlighting/src/eepp/ui/doc/languagessyntaxhighlighting.cpp
+++ b/src/modules/languages-syntax-highlighting/src/eepp/ui/doc/languagessyntaxhighlighting.cpp
@@ -14,6 +14,7 @@
 #include <eepp/ui/doc/languages/carbon.hpp>
 #include <eepp/ui/doc/languages/clojure.hpp>
 #include <eepp/ui/doc/languages/cmake.hpp>
+#include <eepp/ui/doc/languages/cmakecache.hpp>
 #include <eepp/ui/doc/languages/containerfile.hpp>
 #include <eepp/ui/doc/languages/covscript.hpp>
 #include <eepp/ui/doc/languages/crystal.hpp>
@@ -221,6 +222,10 @@ void LanguagesSyntaxHighlighting::load() {
 
 	} );
 
+	sdm->addPreDefinition( { "CMakeCache",
+							 []() -> SyntaxDefinition& { return addCMakeCache(); },
+							 { "^CMakeCache.txt$" } } );
+
 	sdm->addPreDefinition( {
 		"Crystal",
 		[]() -> SyntaxDefinition& { return addCrystal(); },
@@ -561,7 +566,7 @@ void LanguagesSyntaxHighlighting::load() {
 
 	sdm->addPreDefinition( { "RC Script",
 							 []() -> SyntaxDefinition& { return addRcscript(); },
-							 { "%.rc$", "%.rc2$" } } );
+							 { "%.rc$", "%.rc2$", "%.dlg$" } } );
 
 	sdm->addPreDefinition(
 		{ "Rave", []() -> SyntaxDefinition& { return addRave(); }, { "%.rave$" } } );