diff --git a/polymer/eduke32/source/lunatic/con_lang.lua b/polymer/eduke32/source/lunatic/con_lang.lua
index 8fc254e3e..8cf801676 100644
--- a/polymer/eduke32/source/lunatic/con_lang.lua
+++ b/polymer/eduke32/source/lunatic/con_lang.lua
@@ -807,7 +807,7 @@ for member, code in pairs(ProjectileLabels) do
     end
 end
 
-local UD = function(memb) return "_gv._ud"..memb end
+local UD = function(memb) return "_gud(_pli)"..memb end
 local UDRO = function(memb) return { UD(memb) } end
 
 -- NOTE: Only members that actually encountered in existing mods are added here.
diff --git a/polymer/eduke32/source/lunatic/control.lua b/polymer/eduke32/source/lunatic/control.lua
index c6551e253..47a24de6c 100644
--- a/polymer/eduke32/source/lunatic/control.lua
+++ b/polymer/eduke32/source/lunatic/control.lua
@@ -516,6 +516,14 @@ function _getsap(aci, pli)
     return (aci>=0) and sprite[aci], (aci>=0) and actor[aci], (pli>=0) and player[pli]
 end
 
+function _gud(pli)
+    if (pli ~= ffiC.myconnectindex) then
+        error(format("userdefs access with non-local current player %d (we: %d)",
+                     pli, ffiC.myconnectindex), 2)
+    end
+    return ffiC.ud
+end
+
 --- player/actor/sprite searching functions ---
 
 local xmath = require("xmath")
diff --git a/polymer/eduke32/source/lunatic/defs.ilua b/polymer/eduke32/source/lunatic/defs.ilua
index 7b2e7980a..1d2af56fe 100644
--- a/polymer/eduke32/source/lunatic/defs.ilua
+++ b/polymer/eduke32/source/lunatic/defs.ilua
@@ -603,6 +603,7 @@ decl("map_t MapInfo[$*$];", con_lang.MAXVOLUMES+1, con_lang.MAXLEVELS)
 decl("char EpisodeNames[$][33];", con_lang.MAXVOLUMES)
 
 decl[[
+const int32_t myconnectindex;
 int32_t g_RETURN;
 int32_t g_elCONSize;
 char *g_elCON;
diff --git a/polymer/eduke32/source/lunatic/dynsymlist b/polymer/eduke32/source/lunatic/dynsymlist
index a4bb73501..6525a16a3 100644
--- a/polymer/eduke32/source/lunatic/dynsymlist
+++ b/polymer/eduke32/source/lunatic/dynsymlist
@@ -117,6 +117,7 @@ g_sizes_of;
 g_elFirstTime;
 g_elCallDepth;
 block_deletesprite;
+myconnectindex;
 g_RETURN;
 g_elModules;
 g_modDir;
diff --git a/polymer/eduke32/source/lunatic/lunacon.lua b/polymer/eduke32/source/lunatic/lunacon.lua
index 85edba8d5..3219a0b78 100644
--- a/polymer/eduke32/source/lunatic/lunacon.lua
+++ b/polymer/eduke32/source/lunatic/lunacon.lua
@@ -305,6 +305,7 @@ local function new_initial_codetab()
         "local _band, _bor, _bxor = _bit.band, _bit.bor, _bit.bxor",
         "local _lsh, _rsh, _arsh = _bit.lshift, _bit.rshift, _bit.arshift",
         "local _setsprite,_ssp = _con._setsprite,_con._ssp",
+        "local _gud=_con._gud",
 
         -- * CON "states" (subroutines) and
         -- * Switch function table, indexed by global switch sequence number:
diff --git a/polymer/eduke32/source/lunatic/test/getuserdef.con b/polymer/eduke32/source/lunatic/test/getuserdef.con
new file mode 100644
index 000000000..a9869d201
--- /dev/null
+++ b/polymer/eduke32/source/lunatic/test/getuserdef.con
@@ -0,0 +1,17 @@
+// XXX: should be allowed to override existing modes? (Probably yes.)
+// XXX: but currently, this ensues badness? (g_numGametypes becomes inconsistent?)
+definegametype 0 46051 Cooperative
+
+gamevar temp 0 0
+
+// Original version by Fox, from
+// http://forums.duke4.net/topic/775-eduke32-20-and-polymer/page__view__findpost__p__183890
+onevent EVENT_DISPLAYREST
+//    getuserdef[THISACTOR].statusbarscale temp
+    // NOTE: index (THISACTOR) is never used.
+    // NOTE: incorrect if screenpeek != myconnectindex, e.g. by pressing [K]:
+    getuserdef .statusbarscale temp
+    redefinequote 0 %ld
+    qsprintf 0 0 temp
+    gametext STARTALPHANUM 10 10 0 0 0 0 0 0 xdim ydim
+endevent