diff --git a/src/mapper/map_func.cc b/src/mapper/map_func.cc
index 9d96f2e..b9f297d 100644
--- a/src/mapper/map_func.cc
+++ b/src/mapper/map_func.cc
@@ -8,4 +8,10 @@ void setup_map_dirs()
     // TODO: Incomplete.
 }
 
+// 0x4826B4
+void copy_proto_lists()
+{
+    // TODO: Incomplete.
+}
+
 } // namespace fallout
diff --git a/src/mapper/map_func.h b/src/mapper/map_func.h
index fb71b2b..1292604 100644
--- a/src/mapper/map_func.h
+++ b/src/mapper/map_func.h
@@ -4,6 +4,7 @@
 namespace fallout {
 
 void setup_map_dirs();
+void copy_proto_lists();
 
 } // namespace fallout
 
diff --git a/src/mapper/mapper.cc b/src/mapper/mapper.cc
index 786b5a5..8afe3eb 100644
--- a/src/mapper/mapper.cc
+++ b/src/mapper/mapper.cc
@@ -12,6 +12,7 @@
 #include "graph_lib.h"
 #include "inventory.h"
 #include "kb.h"
+#include "loadsave.h"
 #include "mapper/map_func.h"
 #include "mapper/mp_proto.h"
 #include "mapper/mp_targt.h"
@@ -97,6 +98,8 @@ static char kRebuildBinary[] = " Rebuild Binary ";
 static char kArtToProtos[] = " Art => New Protos ";
 static char kSwapPrototypse[] = " Swap Prototypes ";
 
+static char kTmpMapName[] = "TMP$MAP#.MAP";
+
 // 0x559648
 char* menu_0[] = {
     kNew,
@@ -177,6 +180,9 @@ int art_scale_width = 49;
 // 0x559888
 int art_scale_height = 48;
 
+// 0x5598A4
+static char* tmp_map_name = kTmpMapName;
+
 // 0x5598A8
 static int bookmarkWin = -1;
 
@@ -1219,7 +1225,31 @@ int mapper_edit_init(int argc, char** argv)
 // 0x48752C
 void mapper_edit_exit()
 {
-    // TODO: Incomplete.
+    remove(tmp_map_name);
+    remove("\\fallout\\cd\\data\\maps\\TMP$MAP#.MAP");
+    remove("\\fallout\\cd\\data\\maps\\TMP$MAP#.CFG");
+
+    MapDirErase("MAPS\\", "SAV");
+
+    if (can_modify_protos) {
+        copy_proto_lists();
+
+        // NOTE: There is a call to an ambiguous function at `0x4B9ACC`, likely
+        // `proto_save`.
+    }
+
+    target_exit();
+    _map_exit();
+    bookmarkExit();
+    categoryExit();
+
+    windowDestroy(tool_win);
+    tool = NULL;
+
+    windowDestroy(menu_bar);
+
+    internal_free(art_shape);
+    gameExit();
 }
 
 // 0x4875B4
diff --git a/src/mapper/mp_targt.cc b/src/mapper/mp_targt.cc
index b9892bd..1bbea4a 100644
--- a/src/mapper/mp_targt.cc
+++ b/src/mapper/mp_targt.cc
@@ -16,4 +16,12 @@ int target_init()
     return 0;
 }
 
+// 0x49B434
+int target_exit()
+{
+    // TODO: Incomplete.
+
+    return 0;
+}
+
 } // namespace fallout
diff --git a/src/mapper/mp_targt.h b/src/mapper/mp_targt.h
index 9e7f071..ef308e4 100644
--- a/src/mapper/mp_targt.h
+++ b/src/mapper/mp_targt.h
@@ -5,6 +5,7 @@ namespace fallout {
 
 void target_override_protection();
 int target_init();
+int target_exit();
 
 } // namespace fallout