diff --git a/src/sdhlt/sdHLRAD/qrad.cpp b/src/sdhlt/sdHLRAD/qrad.cpp
index a15559d1..32157a07 100644
--- a/src/sdhlt/sdHLRAD/qrad.cpp
+++ b/src/sdhlt/sdHLRAD/qrad.cpp
@@ -28,6 +28,7 @@
  * every surface must be divided into at least two g_patches each axis
  */
 
+bool            g_pre25update = DEFAULT_PRE25UPDATE;
 bool			g_fastmode = DEFAULT_FASTMODE;
 typedef enum
 {
@@ -2695,6 +2696,7 @@ static void     Usage()
     Banner();
 
     Log("\n-= %s Options =-\n\n", g_Program);
+	Log("    -pre25          : Optimize compile for pre-Half-Life 25th anniversary update.\n");
 	Log("    -console #      : Set to 0 to turn off the pop-up console (default is 1)\n");
 	Log("    -lang file      : localization file\n");
 	Log("    -waddir folder  : Search this folder for wad files.\n");
@@ -2817,6 +2819,7 @@ static void     Settings()
         Log("threads              [ %17d ] [ %17d ]\n", g_numthreads, DEFAULT_NUMTHREADS);
     }
 
+	Log("pre-25th anniversary [ %17s ] [ %17s ]\n", g_pre25update ? "on" : "off", DEFAULT_PRE25UPDATE ? "on" : "off");
     Log("verbose              [ %17s ] [ %17s ]\n", g_verbose ? "on" : "off", DEFAULT_VERBOSE ? "on" : "off");
     Log("log                  [ %17s ] [ %17s ]\n", g_log ? "on" : "off", DEFAULT_LOG ? "on" : "off");
     Log("developer            [ %17d ] [ %17d ]\n", g_developer, DEFAULT_DEVELOPER);
@@ -3393,7 +3396,7 @@ int             main(const int argc, char** argv)
         }
         else if (!strcasecmp(argv[i], "-limiter"))
         {
-            if (i + 1 < argc)	//added "1" .--vluzacn
+            if (i + 1 < argc)	//"1" was added to check if there is another argument afterwards (expected value) //seedee
             {
                 g_limitthreshold = atof(argv[++i]);
             }
@@ -3873,7 +3876,11 @@ int             main(const int argc, char** argv)
 				Usage();
 			}
 		}
-
+		else if (!strcasecmp(argv[i], "-pre25")) //Pre25 should be after everything else to override
+		{
+			g_pre25update = true;
+            g_limitthreshold = 188.0;
+		}
         else if (argv[i][0] == '-')
         {
             Log("Unknown option \"%s\"\n", argv[i]);
diff --git a/src/sdhlt/sdHLRAD/qrad.h b/src/sdhlt/sdHLRAD/qrad.h
index 6151de68..ba59d572 100644
--- a/src/sdhlt/sdHLRAD/qrad.h
+++ b/src/sdhlt/sdHLRAD/qrad.h
@@ -43,6 +43,7 @@
 #include <direct.h>
 #endif
 
+#define DEFAULT_PRE25UPDATE         false
 #define DEFAULT_FASTMODE			false
 #define DEFAULT_METHOD eMethodSparseVismatrix
 #define DEFAULT_LERP_ENABLED        true
@@ -52,9 +53,9 @@
 #define DEFAULT_AMBIENT_RED         0.0
 #define DEFAULT_AMBIENT_GREEN       0.0
 #define DEFAULT_AMBIENT_BLUE        0.0
-// 188 is the fullbright threshold for pre-Anniversary update Goldsrc, regardless of the brightness and gamma settings in the graphic options.
+// 188 is the fullbright threshold for Goldsrc before 25th anniversary, regardless of the brightness and gamma settings in the graphic options. This is no longer necessary
 // However, hlrad can only control the light values of each single light style. So the final in-game brightness may exceed 188 if you have set a high value in the "custom appearance" of the light, or if the face receives light from different styles.
-#define DEFAULT_LIMITTHRESHOLD		255.0
+#define DEFAULT_LIMITTHRESHOLD		255.0 // We override to 188 with pre25 argument. //seedee
 #define DEFAULT_TEXSCALE            true
 #define DEFAULT_CHOP                64.0
 #define DEFAULT_TEXCHOP             32.0