diff --git a/src/loadsave.cc b/src/loadsave.cc
index a67d93f..4bdf654 100644
--- a/src/loadsave.cc
+++ b/src/loadsave.cc
@@ -41,7 +41,6 @@
 #include "world_map.h"
 
 #include <assert.h>
-#include <direct.h>
 #include <stdio.h>
 #include <time.h>
 
@@ -1322,21 +1321,21 @@ int lsgPerformSaveGame()
     backgroundSoundPause();
 
     sprintf(_gmpath, "%s\\%s", _patches, "SAVEGAME");
-    mkdir(_gmpath);
+    compat_mkdir(_gmpath);
 
     sprintf(_gmpath, "%s\\%s\\%s%.2d", _patches, "SAVEGAME", "SLOT", _slot_cursor + 1);
-    mkdir(_gmpath);
+    compat_mkdir(_gmpath);
 
     strcat(_gmpath, "\\proto");
-    mkdir(_gmpath);
+    compat_mkdir(_gmpath);
 
     char* protoBasePath = _gmpath + strlen(_gmpath);
 
     strcpy(protoBasePath, "\\critters");
-    mkdir(_gmpath);
+    compat_mkdir(_gmpath);
 
     strcpy(protoBasePath, "\\items");
-    mkdir(_gmpath);
+    compat_mkdir(_gmpath);
 
     if (_SaveBackup() == -1) {
         debugPrint("\nLOADSAVE: Warning, can't backup save file!\n");
diff --git a/src/map.cc b/src/map.cc
index 21350b2..090e470 100644
--- a/src/map.cc
+++ b/src/map.cc
@@ -33,7 +33,6 @@
 #include "window_manager.h"
 #include "world_map.h"
 
-#include <direct.h>
 #include <stdio.h>
 
 // 0x50B058
@@ -1263,10 +1262,10 @@ int _map_save()
     char* masterPatchesPath;
     if (configGetString(&gGameConfig, GAME_CONFIG_SYSTEM_KEY, GAME_CONFIG_MASTER_PATCHES_KEY, &masterPatchesPath)) {
         strcat(temp, masterPatchesPath);
-        mkdir(temp);
+        compat_mkdir(temp);
 
         strcat(temp, "\\MAPS");
-        mkdir(temp);
+        compat_mkdir(temp);
     }
 
     int rc = -1;
@@ -1451,10 +1450,10 @@ void mapMakeMapsDirectory()
         strcpy(path, "DATA");
     }
 
-    mkdir(path);
+    compat_mkdir(path);
 
     strcat(path, "\\MAPS");
-    mkdir(path);
+    compat_mkdir(path);
 }
 
 // 0x483ED0
diff --git a/src/platform_compat.cc b/src/platform_compat.cc
index 2b9623f..34f6f9e 100644
--- a/src/platform_compat.cc
+++ b/src/platform_compat.cc
@@ -97,3 +97,13 @@ long compat_filelength(int fd)
     lseek(fd, originalOffset, SEEK_SET);
     return filesize;
 }
+
+int compat_mkdir(const char* path)
+{
+    std::error_code ec;
+    if (std::filesystem::create_directory(std::filesystem::path(path), ec)) {
+        return 0;
+    }
+
+    return ec.value();
+}
diff --git a/src/platform_compat.h b/src/platform_compat.h
index 1b63744..759bda8 100644
--- a/src/platform_compat.h
+++ b/src/platform_compat.h
@@ -25,5 +25,6 @@ char* compat_itoa(int value, char* buffer, int radix);
 void compat_splitpath(const char* path, char* drive, char* dir, char* fname, char* ext);
 void compat_makepath(char* path, const char* drive, const char* dir, const char* fname, const char* ext);
 long compat_filelength(int fd);
+int compat_mkdir(const char* path);
 
 #endif /* PLATFORM_COMPAT_H */
diff --git a/src/proto.cc b/src/proto.cc
index 46bab71..d47eeb9 100644
--- a/src/proto.cc
+++ b/src/proto.cc
@@ -19,7 +19,6 @@
 #include "stat.h"
 #include "trait.h"
 
-#include <direct.h>
 #include <stdio.h>
 #include <string.h>
 
@@ -1047,13 +1046,13 @@ int protoInit()
     sprintf(path, "%s\\proto", master_patches);
     len = strlen(path);
 
-    mkdir(path);
+    compat_mkdir(path);
 
     strcpy(path + len, "\\critters");
-    mkdir(path);
+    compat_mkdir(path);
 
     strcpy(path + len, "\\items");
-    mkdir(path);
+    compat_mkdir(path);
 
     // TODO: Get rid of cast.
     _proto_critter_init((Proto*)&gDudeProto, 0x1000000);
diff --git a/src/xfile.cc b/src/xfile.cc
index 3a2f6e3..d0809cf 100644
--- a/src/xfile.cc
+++ b/src/xfile.cc
@@ -3,7 +3,11 @@
 #include "file_find.h"
 
 #include <assert.h>
+#ifdef _WIN32
 #include <direct.h>
+#else
+#include <unistd.h>
+#endif
 #include <io.h>
 #include <stdio.h>
 #include <stdlib.h>
@@ -716,7 +720,7 @@ int xbaseMakeDirectory(const char* filePath)
             *pch = '\0';
 
             if (chdir(path) != 0) {
-                if (mkdir(path) != 0) {
+                if (compat_mkdir(path) != 0) {
                     chdir(workingDirectory);
                     return -1;
                 }
@@ -730,7 +734,7 @@ int xbaseMakeDirectory(const char* filePath)
     }
 
     // Last path component.
-    mkdir(path);
+    compat_mkdir(path);
 
     chdir(workingDirectory);