diff --git a/src/fileio/fileio.hpp b/src/fileio/fileio.hpp
index 1ea9f448..921ed693 100644
--- a/src/fileio/fileio.hpp
+++ b/src/fileio/fileio.hpp
@@ -9,8 +9,10 @@
 #ifndef BOE_FILEIO_HPP
 #define BOE_FILEIO_HPP
 
+#include <ctime>
 #include <string>
 #include <vector>
+#include <set>
 #include <sstream>
 #include <SFML/System/InputStream.hpp>
 #include <boost/filesystem/path.hpp>
@@ -27,6 +29,10 @@ bool load_scenario(fs::path file_to_load, cScenario& scenario, bool only_header
 fs::path nav_get_or_decode_party();
 fs::path nav_put_or_temp_party(fs::path def = "");
 
+const std::set<fs::path> save_extensions = {".exg", ".boe", ".SAV", ".mac"};
+// Return a directory's files sorted by last modified time
+std::vector<std::pair<fs::path, std::time_t>> sorted_file_mtimes(fs::path dir, std::set<fs::path> valid_extensions = save_extensions);
+
 bool load_party(fs::path file_to_load, cUniverse& univ);
 bool save_party(cUniverse& univ, bool save_as = false);
 
diff --git a/src/fileio/fileio_party.cpp b/src/fileio/fileio_party.cpp
index 3cf8b160..d4b4d9e9 100644
--- a/src/fileio/fileio_party.cpp
+++ b/src/fileio/fileio_party.cpp
@@ -552,3 +552,20 @@ bool save_party(cUniverse& univ, bool save_as) {
 	if(univ.file.empty()) return false;
 	return save_party_const(univ, save_as);
 }
+
+static bool compare_mtime(std::pair<fs::path, std::time_t> a, std::pair<fs::path, std::time_t> b) {
+	return std::difftime(a.second, b.second) > 0;
+}
+
+std::vector<std::pair<fs::path, std::time_t>> sorted_file_mtimes(fs::path dir, std::set<fs::path> valid_extensions){
+	std::vector<std::pair<fs::path, std::time_t>> files;
+	for(fs::directory_iterator it{dir}; it != fs::directory_iterator{}; ++it) {
+		fs::path file = *it;
+		if(valid_extensions.count(file.extension())){
+			files.push_back(std::make_pair(file, last_write_time(file)));
+		}
+	}
+
+	std::sort(files.begin(), files.end(), compare_mtime);
+	return files;
+}
\ No newline at end of file