diff --git a/polymer/eduke32/source/gamedef.c b/polymer/eduke32/source/gamedef.c
index 29f81becc..e29693149 100644
--- a/polymer/eduke32/source/gamedef.c
+++ b/polymer/eduke32/source/gamedef.c
@@ -1073,6 +1073,10 @@ const memberlabel_t UserdefsLabels[]=
     { "m_origin_x", USERDEFS_M_ORIGIN_X, 0, 0 },
     { "m_origin_y", USERDEFS_M_ORIGIN_Y, 0, 0 },
 
+    { "usevoxels", USERDEFS_USEVOXELS, 0, 0 },
+    { "usehightile", USERDEFS_USEHIGHTILE, 0, 0 },
+    { "usemodels", USERDEFS_USEMODELS, 0, 0 },
+
     { "entered_name", USERDEFS_ENTERED_NAME, 0, 0 },
     { "screen_tilting", USERDEFS_SCREEN_TILTING, 0, 0 },
     { "shadows", USERDEFS_SHADOWS, 0, 0 },
diff --git a/polymer/eduke32/source/gamedef.h b/polymer/eduke32/source/gamedef.h
index 800683326..cdb88bd28 100644
--- a/polymer/eduke32/source/gamedef.h
+++ b/polymer/eduke32/source/gamedef.h
@@ -435,6 +435,9 @@ enum UserdefsLabel_t
     USERDEFS_M_ORIGIN_Y,
     USERDEFS_PLAYERBEST,
     USERDEFS_MUSICTOGGLE,
+    USERDEFS_USEVOXELS,
+    USERDEFS_USEHIGHTILE,
+    USERDEFS_USEMODELS,
     USERDEFS_END
 };
 
diff --git a/polymer/eduke32/source/gamestructures.c b/polymer/eduke32/source/gamestructures.c
index 3e2ae1431..12c3ecbe1 100644
--- a/polymer/eduke32/source/gamestructures.c
+++ b/polymer/eduke32/source/gamestructures.c
@@ -253,6 +253,19 @@ static void __fastcall VM_AccessUserdef(int32_t iSet, int32_t lLabelID, int32_t
             case USERDEFS_M_ORIGIN_Y: lLabelID = ud.m_origin.y; break;
             case USERDEFS_PLAYERBEST: lLabelID = ud.playerbest; break;
             case USERDEFS_MUSICTOGGLE: lLabelID = ud.config.MusicToggle; break;
+            case USERDEFS_USEVOXELS: lLabelID = usevoxels; break;
+            case USERDEFS_USEHIGHTILE:
+#ifdef USE_OPENGL
+                lLabelID = usehightile;
+                break;
+#endif
+            case USERDEFS_USEMODELS:
+#ifdef USE_OPENGL
+                lLabelID = usemodels;
+#else
+                lLabelID = 0;
+#endif
+                break;
             default: lLabelID = -1; break;
         }
         Gv_SetVarX(lVar2, lLabelID);