diff --git a/distribution/linux/openrct2-mimeinfo.xml b/distribution/linux/openrct2-mimeinfo.xml
index 7b72a6b3bb..b950c5747a 100644
--- a/distribution/linux/openrct2-mimeinfo.xml
+++ b/distribution/linux/openrct2-mimeinfo.xml
@@ -25,6 +25,7 @@
     <glob weight="60" pattern="*.sv6"/>
     <glob weight="60" pattern="*.sv4"/>
     <glob weight="60" pattern="*.sv7"/>
+    <glob weight="60" pattern="*.park"/>
   </mime-type>
 
   <mime-type type="application/x-openrct2-scenario">
diff --git a/src/openrct2-ui/windows/LoadSave.cpp b/src/openrct2-ui/windows/LoadSave.cpp
index 9485bb8cc9..7bc68f1d7e 100644
--- a/src/openrct2-ui/windows/LoadSave.cpp
+++ b/src/openrct2-ui/windows/LoadSave.cpp
@@ -358,16 +358,16 @@ static bool Browse(bool isSave, char* path, size_t pathSize)
             break;
 
         case LOADSAVETYPE_LANDSCAPE:
-            extension = ".sc6";
-            fileType = FILE_EXTENSION_SC6;
+            extension = ".park";
+            fileType = FILE_EXTENSION_PARK;
             title = isSave ? STR_FILE_DIALOG_TITLE_SAVE_LANDSCAPE : STR_FILE_DIALOG_TITLE_LOAD_LANDSCAPE;
             desc.filters[0].name = language_get_string(STR_OPENRCT2_LANDSCAPE_FILE);
             desc.filters[0].pattern = GetFilterPatternByType(_type, isSave);
             break;
 
         case LOADSAVETYPE_SCENARIO:
-            extension = ".sc6";
-            fileType = FILE_EXTENSION_SC6;
+            extension = ".park";
+            fileType = FILE_EXTENSION_PARK;
             title = STR_FILE_DIALOG_TITLE_SAVE_SCENARIO;
             desc.filters[0].name = language_get_string(STR_OPENRCT2_SCENARIO_FILE);
             desc.filters[0].pattern = GetFilterPatternByType(_type, isSave);
diff --git a/src/openrct2/Game.cpp b/src/openrct2/Game.cpp
index caa7e6954c..c012028653 100644
--- a/src/openrct2/Game.cpp
+++ b/src/openrct2/Game.cpp
@@ -609,7 +609,7 @@ static void limit_autosave_count(const size_t numberOfFilesToKeep, bool processL
     if (processLandscapeFolder)
     {
         folderDirectory = environment->GetDirectoryPath(DIRBASE::USER, DIRID::LANDSCAPE);
-        fileFilter = "autosave_*.sc6";
+        fileFilter = "autosave_*.park";
     }
 
     utf8 filter[MAX_PATH];
@@ -671,7 +671,7 @@ void game_autosave()
     if (gScreenFlags & SCREEN_FLAGS_EDITOR)
     {
         subDirectory = "landscape";
-        fileExtension = ".sc6";
+        fileExtension = ".park";
         saveFlags |= 2;
     }
 
diff --git a/src/openrct2/platform/Platform.Win32.cpp b/src/openrct2/platform/Platform.Win32.cpp
index 02a39ca464..96e12986c2 100644
--- a/src/openrct2/platform/Platform.Win32.cpp
+++ b/src/openrct2/platform/Platform.Win32.cpp
@@ -365,6 +365,7 @@ namespace Platform
     void SetUpFileAssociations()
     {
         // Setup file extensions
+        SetUpFileAssociation(".park", "OpenRCT2 park (.park)", "Play", "\"%1\"", 0);
         SetUpFileAssociation(".sc4", "RCT1 Scenario (.sc4)", "Play", "\"%1\"", 0);
         SetUpFileAssociation(".sc6", "RCT2 Scenario (.sc6)", "Play", "\"%1\"", 0);
         SetUpFileAssociation(".sv4", "RCT1 Saved Game (.sc4)", "Play", "\"%1\"", 0);
@@ -510,6 +511,7 @@ namespace Platform
     void RemoveFileAssociations()
     {
         // Remove file extensions
+        RemoveFileAssociation(".park");
         RemoveFileAssociation(".sc4");
         RemoveFileAssociation(".sc6");
         RemoveFileAssociation(".sv4");
diff --git a/src/openrct2/title/TitleSequence.cpp b/src/openrct2/title/TitleSequence.cpp
index 4bb66640fa..e85dab8923 100644
--- a/src/openrct2/title/TitleSequence.cpp
+++ b/src/openrct2/title/TitleSequence.cpp
@@ -291,7 +291,7 @@ static std::vector<std::string> GetSaves(const std::string& directory)
 {
     std::vector<std::string> saves;
 
-    auto pattern = Path::Combine(directory, "*.sc6;*.sv6");
+    auto pattern = Path::Combine(directory, "*.sc6;*.sv6;*.park;*.sv4;*.sc4");
     auto scanner = Path::ScanDirectory(pattern, true);
     while (scanner->Next())
     {