diff --git a/Source/Core/Core/CoreParameter.cpp b/Source/Core/Core/CoreParameter.cpp
index 7f418cbd3a..5b4937657f 100644
--- a/Source/Core/Core/CoreParameter.cpp
+++ b/Source/Core/Core/CoreParameter.cpp
@@ -375,58 +375,59 @@ void SCoreStartupParameter::CheckMemcardPath(std::string& memcardPath, std::stri
 
 IniFile SCoreStartupParameter::LoadDefaultGameIni() const
 {
-	IniFile game_ini;
-	LoadGameIni(&game_ini, File::GetSysDirectory() + GAMESETTINGS_DIR DIR_SEP, GetUniqueID(), m_revision);
-	return game_ini;
+	return LoadDefaultGameIni(GetUniqueID(), m_revision);
 }
 
 IniFile SCoreStartupParameter::LoadLocalGameIni() const
 {
-	IniFile game_ini;
-	LoadGameIni(&game_ini, File::GetUserPath(D_GAMESETTINGS_IDX), GetUniqueID(), m_revision);
-	return game_ini;
+	return LoadLocalGameIni(GetUniqueID(), m_revision);
 }
 
 IniFile SCoreStartupParameter::LoadGameIni() const
 {
-	IniFile game_ini;
-	LoadGameIni(&game_ini, File::GetSysDirectory() + GAMESETTINGS_DIR DIR_SEP, GetUniqueID(), m_revision);
-	LoadGameIni(&game_ini, File::GetUserPath(D_GAMESETTINGS_IDX), GetUniqueID(), m_revision);
-	return game_ini;
+	return LoadGameIni(GetUniqueID(), m_revision);
 }
 
 IniFile SCoreStartupParameter::LoadDefaultGameIni(const std::string& id, int revision)
 {
 	IniFile game_ini;
-	LoadGameIni(&game_ini, File::GetSysDirectory() + GAMESETTINGS_DIR DIR_SEP, id, revision);
+	for (const std::string& filename : GetGameIniFilenames(id, revision))
+		game_ini.Load(File::GetSysDirectory() + GAMESETTINGS_DIR DIR_SEP + filename, true);
 	return game_ini;
 }
 
 IniFile SCoreStartupParameter::LoadLocalGameIni(const std::string& id, int revision)
 {
 	IniFile game_ini;
-	LoadGameIni(&game_ini, File::GetUserPath(D_GAMESETTINGS_IDX), id, revision);
+	for (const std::string& filename : GetGameIniFilenames(id, revision))
+		game_ini.Load(File::GetUserPath(D_GAMESETTINGS_IDX) + filename, true);
 	return game_ini;
 }
 
 IniFile SCoreStartupParameter::LoadGameIni(const std::string& id, int revision)
 {
 	IniFile game_ini;
-	LoadGameIni(&game_ini, File::GetSysDirectory() + GAMESETTINGS_DIR DIR_SEP, id, revision);
-	LoadGameIni(&game_ini, File::GetUserPath(D_GAMESETTINGS_IDX), id, revision);
+	for (const std::string& filename : GetGameIniFilenames(id, revision))
+		game_ini.Load(File::GetSysDirectory() + GAMESETTINGS_DIR DIR_SEP + filename, true);
+	for (const std::string& filename : GetGameIniFilenames(id, revision))
+		game_ini.Load(File::GetUserPath(D_GAMESETTINGS_IDX) + filename, true);
 	return game_ini;
 }
 
-void SCoreStartupParameter::LoadGameIni(IniFile* game_ini, const std::string& path,
-                                        const std::string& id, int revision)
+// Returns all possible filenames in ascending order of priority
+std::vector<std::string> SCoreStartupParameter::GetGameIniFilenames(const std::string& id, int revision)
 {
+	std::vector<std::string> filenames;
+
 	// INIs that match all regions
 	if (id.size() >= 4)
-		game_ini->Load(path + id.substr(0, 3) + ".ini", true);
+		filenames.push_back(id.substr(0, 3) + ".ini");
 
 	// Regular INIs
-	game_ini->Load(path + id + ".ini", true);
+	filenames.push_back(id + ".ini");
 
 	// INIs with specific revisions
-	game_ini->Load(path + id + StringFromFormat("r%d", revision) + ".ini", true);
+	filenames.push_back(id + StringFromFormat("r%d", revision) + ".ini");
+
+	return filenames;
 }
diff --git a/Source/Core/Core/CoreParameter.h b/Source/Core/Core/CoreParameter.h
index 80ab3a628b..e5f9cac9b1 100644
--- a/Source/Core/Core/CoreParameter.h
+++ b/Source/Core/Core/CoreParameter.h
@@ -257,6 +257,5 @@ struct SCoreStartupParameter
 	static IniFile LoadLocalGameIni(const std::string& id, int revision);
 	static IniFile LoadGameIni(const std::string& id, int revision);
 
-private:
-	static void LoadGameIni(IniFile* game_ini, const std::string& path, const std::string& id, int revision);
+	static std::vector<std::string> GetGameIniFilenames(const std::string& id, int revision);
 };
diff --git a/Source/Core/DolphinWX/ISOProperties.cpp b/Source/Core/DolphinWX/ISOProperties.cpp
index c580606c42..e0f83a76d6 100644
--- a/Source/Core/DolphinWX/ISOProperties.cpp
+++ b/Source/Core/DolphinWX/ISOProperties.cpp
@@ -149,22 +149,21 @@ CISOProperties::CISOProperties(const std::string fileName, wxWindow* parent, wxW
 		}
 	}
 
-	// Is it really necessary to use GetTitleID in case GetUniqueID fails?
-	std::string _iniFilename = OpenISO->GetUniqueID();
-	if (_iniFilename.empty())
+	// TODO: Is it really necessary to use GetTitleID in case GetUniqueID fails?
+	game_id = OpenISO->GetUniqueID();
+	if (game_id.empty())
 	{
-		u8 title_id[8];
-		if (OpenISO->GetTitleID(title_id))
+		u8 game_id_bytes[8];
+		if (OpenISO->GetTitleID(game_id_bytes))
 		{
-			_iniFilename = StringFromFormat("%016" PRIx64, Common::swap64(title_id));
+			game_id = StringFromFormat("%016" PRIx64, Common::swap64(game_id_bytes));
 		}
 	}
 
 	// Load game INIs
-	GameIniFileDefault = File::GetSysDirectory() + GAMESETTINGS_DIR DIR_SEP + _iniFilename + ".ini";
-	GameIniFileLocal = File::GetUserPath(D_GAMESETTINGS_IDX) + _iniFilename + ".ini";
-	GameIniDefault = SCoreStartupParameter::LoadDefaultGameIni(_iniFilename, OpenISO->GetRevision());
-	GameIniLocal = SCoreStartupParameter::LoadLocalGameIni(_iniFilename, OpenISO->GetRevision());
+	GameIniFileLocal = File::GetUserPath(D_GAMESETTINGS_IDX) + game_id + ".ini";
+	GameIniDefault = SCoreStartupParameter::LoadDefaultGameIni(game_id, OpenISO->GetRevision());
+	GameIniLocal = SCoreStartupParameter::LoadLocalGameIni(game_id, OpenISO->GetRevision());
 
 	// Setup GUI
 	OpenGameListItem = new GameListItem(fileName);
@@ -643,7 +642,16 @@ void CISOProperties::CreateGUIControls(bool IsWad)
 	sButtons->Add(new wxButton(this, wxID_OK, _("Close")));
 
 	// If there is no default gameini, disable the button.
-	if (!File::Exists(GameIniFileDefault))
+	bool game_ini_exists = false;
+	for (const std::string& ini_filename : SCoreStartupParameter::GetGameIniFilenames(game_id, OpenISO->GetRevision()))
+	{
+		if (File::Exists(File::GetSysDirectory() + GAMESETTINGS_DIR DIR_SEP + ini_filename))
+		{
+			game_ini_exists = true;
+			break;
+		}
+	}
+	if (!game_ini_exists)
 		EditConfigDefault->Disable();
 
 	// Add notebook and buttons to the dialog
@@ -1283,9 +1291,16 @@ void CISOProperties::OnComputeMD5Sum(wxCommandEvent& WXUNUSED (event))
 	m_MD5Sum->SetValue(output_string);
 }
 
+// Opens all pre-defined INIs for the game. If there are multiple ones,
+// they will all be opened, but there is usually only one
 void CISOProperties::OnShowDefaultConfig(wxCommandEvent& WXUNUSED (event))
 {
-	LaunchExternalEditor(GameIniFileDefault);
+	for (const std::string& filename : SCoreStartupParameter::GetGameIniFilenames(game_id, OpenISO->GetRevision()))
+	{
+		std::string path = File::GetSysDirectory() + GAMESETTINGS_DIR DIR_SEP + filename;
+		if (File::Exists(path))
+			LaunchExternalEditor(path);
+	}
 }
 
 void CISOProperties::ListSelectionChanged(wxCommandEvent& event)
diff --git a/Source/Core/DolphinWX/ISOProperties.h b/Source/Core/DolphinWX/ISOProperties.h
index 8b396d5b2c..46b31fe12c 100644
--- a/Source/Core/DolphinWX/ISOProperties.h
+++ b/Source/Core/DolphinWX/ISOProperties.h
@@ -241,8 +241,8 @@ private:
 
 	IniFile GameIniDefault;
 	IniFile GameIniLocal;
-	std::string GameIniFileDefault;
 	std::string GameIniFileLocal;
+	std::string game_id;
 
 	std::set<std::string> DefaultPatches;
 	std::set<std::string> DefaultCheats;