diff --git a/src/g_level.cpp b/src/g_level.cpp
index 42e7be1ed..ebd08022f 100644
--- a/src/g_level.cpp
+++ b/src/g_level.cpp
@@ -1789,6 +1789,7 @@ void FLevelLocals::Init()
 	flags = 0;
 	flags2 = 0;
 	flags3 = 0;
+	flags9 = 0;
 	ImpactDecalCount = 0;
 	frozenstate = 0;
 
@@ -1837,6 +1838,7 @@ void FLevelLocals::Init()
 	flags |= info->flags;
 	flags2 |= info->flags2;
 	flags3 |= info->flags3;
+	flags9 |= info->flags9;
 	levelnum = info->levelnum;
 	Music = info->Music;
 	musicorder = info->musicorder;
diff --git a/src/gamedata/g_mapinfo.cpp b/src/gamedata/g_mapinfo.cpp
index 59f37bc52..79b0017d9 100644
--- a/src/gamedata/g_mapinfo.cpp
+++ b/src/gamedata/g_mapinfo.cpp
@@ -250,6 +250,7 @@ void level_info_t::Reset()
 	else
 		flags2 = LEVEL2_LAXMONSTERACTIVATION;
 	flags3 = 0;
+	flags9 = 0;
 	Music = "";
 	LevelName = "";
 	AuthorName = "";
diff --git a/src/p_saveg.cpp b/src/p_saveg.cpp
index 25b244ffd..769917802 100644
--- a/src/p_saveg.cpp
+++ b/src/p_saveg.cpp
@@ -969,6 +969,7 @@ void FLevelLocals::Serialize(FSerializer &arc, bool hubload)
 
 	arc("flags", flags)
 		("flags2", flags2)
+		("flags9", flags9)
 		("fadeto", fadeto)
 		("found_secrets", found_secrets)
 		("found_items", found_items)
diff --git a/src/scripting/vmthunks.cpp b/src/scripting/vmthunks.cpp
index 44bbf27b4..b08935405 100644
--- a/src/scripting/vmthunks.cpp
+++ b/src/scripting/vmthunks.cpp
@@ -2763,6 +2763,7 @@ DEFINE_FIELD_X(LevelInfo, level_info_t, sucktime)
 DEFINE_FIELD_X(LevelInfo, level_info_t, flags)
 DEFINE_FIELD_X(LevelInfo, level_info_t, flags2)
 DEFINE_FIELD_X(LevelInfo, level_info_t, flags3)
+DEFINE_FIELD_X(LevelInfo, level_info_t, flags9)
 DEFINE_FIELD_X(LevelInfo, level_info_t, Music)
 DEFINE_FIELD_X(LevelInfo, level_info_t, LevelName)
 DEFINE_FIELD_X(LevelInfo, level_info_t, AuthorName)
diff --git a/wadsrc/static/zscript/constants.zs b/wadsrc/static/zscript/constants.zs
index fe44f2c3d..db8526203 100644
--- a/wadsrc/static/zscript/constants.zs
+++ b/wadsrc/static/zscript/constants.zs
@@ -1379,6 +1379,9 @@ enum ELevelFlags
 	LEVEL3_AVOIDMELEE			= 0x00020000,	// global flag needed for proper MBF support.
 	LEVEL3_NOJUMPDOWN			= 0x00040000,	// only for MBF21. Inverse of MBF's dog_jumping flag.
 	LEVEL3_LIGHTCREATED			= 0x00080000,	// a light had been created in the last frame
+
+	LEVEL9_NOUSERSAVE			= 0x00000001,
+	LEVEL9_NOAUTOMAP			= 0x00000002,
 };
 
 // [RH] Compatibility flags.
diff --git a/wadsrc/static/zscript/doombase.zs b/wadsrc/static/zscript/doombase.zs
index 0cca07c42..9bf33698f 100644
--- a/wadsrc/static/zscript/doombase.zs
+++ b/wadsrc/static/zscript/doombase.zs
@@ -337,6 +337,7 @@ struct LevelInfo native
 	native readonly int flags;
 	native readonly int flags2;
 	native readonly int flags3;
+	native readonly int flags9;
 	native readonly String Music;
 	native readonly String LevelName;
 	native readonly String AuthorName;