diff --git a/source/duke3d/src/game.h b/source/duke3d/src/game.h
index e44299067..6ba96156c 100644
--- a/source/duke3d/src/game.h
+++ b/source/duke3d/src/game.h
@@ -150,6 +150,8 @@ extern camera_t g_camera;
 #define MAXPWLOCKOUT 128
 #define MAXRTSNAME 128
 
+#define MAX_RETURN_VALUES 4
+
 // KEEPINSYNC lunatic/_defs_game.lua
 typedef struct {
 #if !defined LUNATIC
@@ -165,7 +167,6 @@ typedef struct {
     int32_t team, viewbob, weaponsway, althud, weaponscale, textscale;
     int32_t statusbarflags, statusbarrange, statusbarcustom;
     int32_t hudontop;
-    int32_t screenarea_x1, screenarea_y1, screenarea_x2, screenarea_y2;
     int32_t menu_slidebarz, menu_slidebarmargin, menu_slidecursorz;
     int32_t menu_scrollbartilenum, menu_scrollbarz, menu_scrollcursorz;
 
@@ -179,13 +180,14 @@ typedef struct {
     int32_t player_skill,level_number,volume_number,m_marker,marker,mouseflip;
     int32_t music_episode, music_level;
 
-    vec2_t m_origin;
     int32_t playerbest;
 
     int32_t configversion, bgstretch;
 
     int32_t default_volume, default_skill;
 
+    int32_t returnvar[MAX_RETURN_VALUES-1];
+
 #if !defined LUNATIC
     int16_t cameraang, camerasect, camerahoriz;
 #endif
diff --git a/source/duke3d/src/gamedef.cpp b/source/duke3d/src/gamedef.cpp
index 9fc178ed0..2d0b86045 100644
--- a/source/duke3d/src/gamedef.cpp
+++ b/source/duke3d/src/gamedef.cpp
@@ -1317,6 +1317,7 @@ const memberlabel_t UserdefsLabels[]=
     { "menu_scrollbartilenum",  USERDEFS_MENU_SCROLLBARTILENUM,  0, 0 },
     { "menu_scrollbarz",        USERDEFS_MENU_SCROLLBARZ,        0, 0 },
     { "menu_scrollcursorz",     USERDEFS_MENU_SCROLLCURSORZ,     0, 0 },
+    { "return",                 USERDEFS_RETURN,                 LABEL_HASPARM2, MAX_RETURN_VALUES },
     { NULL,                     -1,                              0, 0  } // END OF LIST
 };
 
diff --git a/source/duke3d/src/gamedef.h b/source/duke3d/src/gamedef.h
index 33d52318c..0aceade91 100644
--- a/source/duke3d/src/gamedef.h
+++ b/source/duke3d/src/gamedef.h
@@ -588,6 +588,7 @@ enum UserdefsLabel_t
     USERDEFS_MENU_SCROLLBARTILENUM,
     USERDEFS_MENU_SCROLLBARZ,
     USERDEFS_MENU_SCROLLCURSORZ,
+    USERDEFS_RETURN,
     USERDEFS_END
 };
 
diff --git a/source/duke3d/src/gamestructures.cpp b/source/duke3d/src/gamestructures.cpp
index 18aa0ad81..048505a70 100644
--- a/source/duke3d/src/gamestructures.cpp
+++ b/source/duke3d/src/gamestructures.cpp
@@ -151,8 +151,8 @@ int32_t __fastcall VM_GetUserdef(int32_t labelNum, int32_t const lParm2)
         case USERDEFS_WEAPONSCALE: labelNum = ud.weaponscale; break;
         case USERDEFS_TEXTSCALE: labelNum = ud.textscale; break;
         case USERDEFS_RUNKEY_MODE: labelNum = ud.runkey_mode; break;
-        case USERDEFS_M_ORIGIN_X: labelNum = ud.m_origin.x; break;
-        case USERDEFS_M_ORIGIN_Y: labelNum = ud.m_origin.y; break;
+        case USERDEFS_M_ORIGIN_X: labelNum = ud.returnvar[0]; break;
+        case USERDEFS_M_ORIGIN_Y: labelNum = ud.returnvar[1]; break;
         case USERDEFS_PLAYERBEST: labelNum = ud.playerbest; break;
         case USERDEFS_MUSICTOGGLE: labelNum = ud.config.MusicToggle; break;
         case USERDEFS_USEVOXELS: labelNum = usevoxels; break;
@@ -179,10 +179,10 @@ int32_t __fastcall VM_GetUserdef(int32_t labelNum, int32_t const lParm2)
         case USERDEFS_GAMETEXT_TRACKING: labelNum = MF_Bluefont.between.x; break;
         case USERDEFS_MENUTEXT_TRACKING: labelNum = MF_Redfont.between.x; break;
         case USERDEFS_MAXSPRITESONSCREEN: labelNum = maxspritesonscreen; break;
-        case USERDEFS_SCREENAREA_X1: labelNum = ud.screenarea_x1; break;
-        case USERDEFS_SCREENAREA_Y1: labelNum = ud.screenarea_y1; break;
-        case USERDEFS_SCREENAREA_X2: labelNum = ud.screenarea_x2; break;
-        case USERDEFS_SCREENAREA_Y2: labelNum = ud.screenarea_y2; break;
+        case USERDEFS_SCREENAREA_X1: labelNum = aGameVars[g_returnVarID].global; break;
+        case USERDEFS_SCREENAREA_Y1: labelNum = ud.returnvar[0]; break;
+        case USERDEFS_SCREENAREA_X2: labelNum = ud.returnvar[1]; break;
+        case USERDEFS_SCREENAREA_Y2: labelNum = ud.returnvar[2]; break;
         case USERDEFS_SCREENFADE: labelNum = ud.screenfade; break;
         case USERDEFS_MENUBACKGROUND: labelNum = ud.menubackground; break;
         case USERDEFS_STATUSBARFLAGS: labelNum = ud.statusbarflags; break;
@@ -224,6 +224,12 @@ int32_t __fastcall VM_GetUserdef(int32_t labelNum, int32_t const lParm2)
         case USERDEFS_MENU_SCROLLBARTILENUM: labelNum = ud.menu_scrollbartilenum; break;
         case USERDEFS_MENU_SCROLLBARZ: labelNum = ud.menu_scrollbarz; break;
         case USERDEFS_MENU_SCROLLCURSORZ: labelNum = ud.menu_scrollcursorz; break;
+        case USERDEFS_RETURN:
+            if (lParm2 == 0)
+                labelNum = aGameVars[g_returnVarID].global;
+            else
+                labelNum = ud.returnvar[lParm2-1];
+            break;
         default: labelNum = -1; break;
     }
 
@@ -341,8 +347,8 @@ void __fastcall VM_SetUserdef(int32_t const labelNum, int32_t const lParm2, int3
         case USERDEFS_WEAPONSCALE: ud.weaponscale = iSet; break;
         case USERDEFS_TEXTSCALE: ud.textscale = iSet; break;
         case USERDEFS_RUNKEY_MODE: ud.runkey_mode = iSet; break;
-        case USERDEFS_M_ORIGIN_X: ud.m_origin.x = iSet; break;
-        case USERDEFS_M_ORIGIN_Y: ud.m_origin.y = iSet; break;
+        case USERDEFS_M_ORIGIN_X: ud.returnvar[0] = iSet; break;
+        case USERDEFS_M_ORIGIN_Y: ud.returnvar[1] = iSet; break;
         case USERDEFS_GLOBALFLAGS: globalflags = iSet; break;
         case USERDEFS_GLOBALGAMEFLAGS: duke3d_globalflags = iSet; break;
         case USERDEFS_VM_PLAYER: vm.playerNum = iSet; vm.pPlayer = g_player[iSet].ps; break;
@@ -351,10 +357,10 @@ void __fastcall VM_SetUserdef(int32_t const labelNum, int32_t const lParm2, int3
         case USERDEFS_GAMETEXT_TRACKING: MF_Bluefont.between.x = iSet; break;
         case USERDEFS_MENUTEXT_TRACKING: MF_Redfont.between.x = iSet; break;
         case USERDEFS_MAXSPRITESONSCREEN: maxspritesonscreen = clamp(iSet, MAXSPRITESONSCREEN>>2, MAXSPRITESONSCREEN); break;
-        case USERDEFS_SCREENAREA_X1: ud.screenarea_x1 = iSet; break;
-        case USERDEFS_SCREENAREA_Y1: ud.screenarea_y1 = iSet; break;
-        case USERDEFS_SCREENAREA_X2: ud.screenarea_x2 = iSet; break;
-        case USERDEFS_SCREENAREA_Y2: ud.screenarea_y2 = iSet; break;
+        case USERDEFS_SCREENAREA_X1: aGameVars[g_returnVarID].global = iSet; break;
+        case USERDEFS_SCREENAREA_Y1: ud.returnvar[0] = iSet; break;
+        case USERDEFS_SCREENAREA_X2: ud.returnvar[1] = iSet; break;
+        case USERDEFS_SCREENAREA_Y2: ud.returnvar[2] = iSet; break;
         case USERDEFS_SCREENFADE: ud.screenfade = iSet; break;
         case USERDEFS_MENUBACKGROUND: ud.menubackground = iSet; break;
         case USERDEFS_STATUSBARFLAGS: ud.statusbarflags = iSet; break;
@@ -406,6 +412,12 @@ void __fastcall VM_SetUserdef(int32_t const labelNum, int32_t const lParm2, int3
         case USERDEFS_MENU_SCROLLBARTILENUM: ud.menu_scrollbartilenum = iSet; break;
         case USERDEFS_MENU_SCROLLBARZ: ud.menu_scrollbarz = iSet; break;
         case USERDEFS_MENU_SCROLLCURSORZ: ud.menu_scrollcursorz = iSet; break;
+        case USERDEFS_RETURN:
+            if (lParm2 == 0)
+                aGameVars[g_returnVarID].global = iSet;
+            else
+                ud.returnvar[lParm2-1] = iSet;
+            break;
         default: break;
     }
 }
diff --git a/source/duke3d/src/menus.cpp b/source/duke3d/src/menus.cpp
index 1dad5a19f..8036db467 100644
--- a/source/duke3d/src/menus.cpp
+++ b/source/duke3d/src/menus.cpp
@@ -6660,9 +6660,11 @@ void M_DisplayMenus(void)
 
     if (m_parentMenu)
     {
-        ud.m_origin = origin;
+        ud.returnvar[0] = origin.x;
+        ud.returnvar[1] = origin.y;
         VM_OnEventWithReturn(EVENT_DISPLAYINACTIVEMENU, g_player[screenpeek].ps->i, screenpeek, m_parentMenu->menuID);
-        origin = ud.m_origin;
+        origin.x = ud.returnvar[0];
+        origin.y = ud.returnvar[1];
     }
 
     // Determine animation values.
@@ -6673,14 +6675,18 @@ void M_DisplayMenus(void)
         origin.x = mulscale15(screenwidth, m_animation.in(&m_animation));
         previousOrigin.x = mulscale15(screenwidth, m_animation.out(&m_animation));
 
-        ud.m_origin = previousOrigin;
+        ud.returnvar[0] = previousOrigin.x;
+        ud.returnvar[1] = previousOrigin.y;
         VM_OnEventWithReturn(EVENT_DISPLAYINACTIVEMENU, g_player[screenpeek].ps->i, screenpeek, m_animation.previous->menuID);
-        previousOrigin = ud.m_origin;
+        previousOrigin.x = ud.returnvar[0];
+        previousOrigin.y = ud.returnvar[1];
     }
 
-    ud.m_origin = origin;
+    ud.returnvar[0] = origin.x;
+    ud.returnvar[1] = origin.y;
     VM_OnEventWithReturn(EVENT_DISPLAYMENU, g_player[screenpeek].ps->i, screenpeek, g_currentMenu);
-    origin = ud.m_origin;
+    origin.x = ud.returnvar[0];
+    origin.y = ud.returnvar[1];
 
     if (m_parentMenu && backgroundOK)
     {
@@ -6707,17 +6713,20 @@ void M_DisplayMenus(void)
 
     if (m_parentMenu)
     {
-        ud.m_origin = origin;
+        ud.returnvar[0] = origin.x;
+        ud.returnvar[1] = origin.y;
         VM_OnEventWithReturn(EVENT_DISPLAYINACTIVEMENUREST, g_player[screenpeek].ps->i, screenpeek, m_parentMenu->menuID);
     }
 
     if (totalclock < m_animation.start + m_animation.length)
     {
-        ud.m_origin = previousOrigin;
+        ud.returnvar[0] = previousOrigin.x;
+        ud.returnvar[1] = previousOrigin.y;
         VM_OnEventWithReturn(EVENT_DISPLAYINACTIVEMENUREST, g_player[screenpeek].ps->i, screenpeek, m_animation.previous->menuID);
     }
 
-    ud.m_origin = origin;
+    ud.returnvar[0] = origin.x;
+    ud.returnvar[1] = origin.y;
     VM_OnEventWithReturn(EVENT_DISPLAYMENUREST, g_player[screenpeek].ps->i, screenpeek, g_currentMenu);
 
 #if !defined EDUKE32_TOUCH_DEVICES
diff --git a/source/duke3d/src/premap.cpp b/source/duke3d/src/premap.cpp
index 3afe33215..d56b80d89 100644
--- a/source/duke3d/src/premap.cpp
+++ b/source/duke3d/src/premap.cpp
@@ -601,15 +601,13 @@ void G_UpdateScreenArea(void)
 
         if (VM_HaveEvent(EVENT_UPDATESCREENAREA))
         {
-            ud.screenarea_x1 = x1;
-            ud.screenarea_y1 = y1;
-            ud.screenarea_x2 = x2;
-            ud.screenarea_y2 = y2;
-            VM_OnEvent(EVENT_UPDATESCREENAREA, g_player[screenpeek].ps->i, screenpeek);
-            x1 = ud.screenarea_x1;
-            y1 = ud.screenarea_y1;
-            x2 = ud.screenarea_x2;
-            y2 = ud.screenarea_y2;
+            ud.returnvar[0] = y1;
+            ud.returnvar[1] = x2;
+            ud.returnvar[2] = y2;
+            x1 = VM_OnEventWithReturn(EVENT_UPDATESCREENAREA, g_player[screenpeek].ps->i, screenpeek, x1);
+            y1 = ud.returnvar[0];
+            x2 = ud.returnvar[1];
+            y2 = ud.returnvar[2];
         }
 
         if (g_halveScreenArea)
diff --git a/source/duke3d/src/sounds.cpp b/source/duke3d/src/sounds.cpp
index de3939638..5215601be 100644
--- a/source/duke3d/src/sounds.cpp
+++ b/source/duke3d/src/sounds.cpp
@@ -280,13 +280,9 @@ static void S_SetMusicIndex(unsigned int m)
 
 int S_TryPlayLevelMusic(unsigned int m)
 {
-    auto m_volume_number = ud.m_volume_number;
-    auto m_level_number  = ud.m_level_number;
-    ud.m_volume_number = m / MAXLEVELS;
-    ud.m_level_number  = m % MAXLEVELS;
+    ud.returnvar[0] = m / MAXLEVELS;
+    ud.returnvar[1] = m % MAXLEVELS;
     int retval = VM_OnEvent(EVENT_PLAYLEVELMUSICSLOT, g_player[myconnectindex].ps->i, myconnectindex);
-    ud.m_volume_number = m_volume_number;
-    ud.m_level_number  = m_level_number;
 
     if (retval < 0)
         return 0;