diff --git a/source/duke3d/src/gamedef.cpp b/source/duke3d/src/gamedef.cpp
index 9146270ae..5c93f1e12 100644
--- a/source/duke3d/src/gamedef.cpp
+++ b/source/duke3d/src/gamedef.cpp
@@ -382,6 +382,7 @@ static tokenmap_t const vm_keywords[] =
     { "qspawnvar",              CON_QSPAWNVAR },
     { "qsprintf",               CON_QSPRINTF },
     { "qstrcat",                CON_QSTRCAT },
+    { "qstrcmp",                CON_QSTRCMP },
     { "qstrcpy",                CON_QSTRCPY },
     { "qstrdim",                CON_QSTRDIM },
     { "qstrlen",                CON_QSTRLEN },
@@ -4778,6 +4779,7 @@ DO_DEFSTATE:
 
         case CON_CANSEESPR:
         case CON_UPDATESECTOR:
+        case CON_QSTRCMP:
             C_GetManyVars(2);
             C_GetNextVarType(GAMEVAR_READONLY);
             continue;
diff --git a/source/duke3d/src/gamedef.h b/source/duke3d/src/gamedef.h
index fe3765999..669b4d84b 100644
--- a/source/duke3d/src/gamedef.h
+++ b/source/duke3d/src/gamedef.h
@@ -1168,6 +1168,7 @@ enum ScriptKeywords_t
     CON_ACTORSOUND,         // 408
     CON_STARTSCREEN,        // 409
     CON_SCREENPAL,          // 410
+    CON_QSTRCMP,            // 411
     CON_END
 };
 // KEEPINSYNC with the keyword list in lunatic/con_lang.lua
diff --git a/source/duke3d/src/gameexec.cpp b/source/duke3d/src/gameexec.cpp
index afd154f25..730567ad5 100644
--- a/source/duke3d/src/gameexec.cpp
+++ b/source/duke3d/src/gameexec.cpp
@@ -2245,6 +2245,24 @@ skip_check:
                 continue;
             }
 
+        case CON_QSTRCMP:
+            insptr++;
+            {
+                int const quote1      = Gv_GetVarX(*insptr++);
+                int const quote2      = Gv_GetVarX(*insptr++);
+                int const gameVar     = *insptr++;
+
+                if (EDUKE32_PREDICT_FALSE(apStrings[quote1] == NULL || apStrings[quote2] == NULL))
+                {
+                    CON_ERRPRINTF("null quote %d\n", apStrings[quote1] ? quote2 : quote1);
+                    Gv_SetVarX(gameVar, -2);
+                    continue;
+                }
+
+                Gv_SetVarX(gameVar, strcmp(apStrings[quote1], apStrings[quote2]));
+                continue;
+            }
+
         case CON_GETPNAME:
         case CON_QSTRNCAT:
         case CON_QSTRCAT: