diff --git a/source/games/blood/all.cpp b/source/games/blood/all.cpp
index 614475060..4d987c715 100644
--- a/source/games/blood/all.cpp
+++ b/source/games/blood/all.cpp
@@ -65,5 +65,6 @@
 #include "src/weapon.cpp"
 
 // This includes the VM so it is last
+#include "src/vmexports.cpp"
 #include "src/d_menu.cpp"
 
diff --git a/source/games/blood/src/bloodactor.h b/source/games/blood/src/bloodactor.h
index a260dde36..8cc3bed64 100644
--- a/source/games/blood/src/bloodactor.h
+++ b/source/games/blood/src/bloodactor.h
@@ -140,6 +140,18 @@ public:
 			return true;
 		}
 	}
+
+	void ChangeType(PClass* newtype)
+	{
+		if (newtype->IsDescendantOf(RUNTIME_CLASS(DBloodActor)) && newtype->Size == RUNTIME_CLASS(DBloodActor)->Size && GetClass()->Size == RUNTIME_CLASS(DBloodActor)->Size)
+		{
+			// It sucks having to do this but the game heavily depends on being able to swap out the class type and often uses this to manage actor state.
+			// We'll allow this only for classes that do not add their own data, though.
+			SetClass(newtype);
+			//spr.setspritetexture(GetDefaultByType(newtype)->spr.spritetexture());
+		}
+	}
+
 	int GetType() const
 	{
 		return spr.type;
diff --git a/source/games/blood/src/sound.h b/source/games/blood/src/sound.h
index c843fad3c..527806c2a 100644
--- a/source/games/blood/src/sound.h
+++ b/source/games/blood/src/sound.h
@@ -1,25 +1,3 @@
-//-------------------------------------------------------------------------
-/*
-Copyright (C) 2010-2019 EDuke32 developers and contributors
-Copyright (C) 2019 Nuke.YKT
-
-This file is part of NBlood.
-
-NBlood is free software; you can redistribute it and/or
-modify it under the terms of the GNU General Public License version 2
-as published by the Free Software Foundation.
-
-This program is distributed in the hope that it will be useful,
-but WITHOUT ANY WARRANTY; without even the implied warranty of
-MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
-
-See the GNU General Public License for more details.
-
-You should have received a copy of the GNU General Public License
-along with this program; if not, write to the Free Software
-Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
-*/
-//-------------------------------------------------------------------------
 #pragma once
 
 #include "misc.h"
diff --git a/source/games/blood/src/vmexports.cpp b/source/games/blood/src/vmexports.cpp
new file mode 100644
index 000000000..53d5c31ce
--- /dev/null
+++ b/source/games/blood/src/vmexports.cpp
@@ -0,0 +1,42 @@
+//-------------------------------------------------------------------------
+/*
+Copyright (C) 2020-2023 - Christoph Oelckers
+
+This file is part of Raze
+
+This is free software; you can redistribute it and/or
+modify it under the terms of the GNU General Public License
+as published by the Free Software Foundation; either version 2
+of the License, or (at your option) any later version.
+
+This program is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  
+
+See the GNU General Public License for more details.
+
+*/
+//-------------------------------------------------------------------------
+
+#include "vm.h"
+#include "ns.h"
+#include "buildtiles.h"
+#include "blood.h"
+BEGIN_BLD_NS
+
+
+
+void Blood_ChangeType(DBloodActor* self, PClassActor* type)
+{
+	self->ChangeType(type);
+}
+
+DEFINE_ACTION_FUNCTION_NATIVE(DBloodActor, ChangeType, Blood_ChangeType)
+{
+	PARAM_SELF_PROLOGUE(DBloodActor);
+	PARAM_POINTER(type, PClassActor);
+	self->ChangeType(type);
+	return 0;
+}
+
+END_BLD_NS
diff --git a/wadsrc/static/zscript.txt b/wadsrc/static/zscript.txt
index df9a2ddc4..d0dc0adbd 100644
--- a/wadsrc/static/zscript.txt
+++ b/wadsrc/static/zscript.txt
@@ -30,14 +30,14 @@ version "4.10"
 
 
 #include "zscript/constants.zs"
-#include "zscript/razebase.zs"
+#include "zscript/games/razebase.zs"
 #include "zscript/summary.zs"
-#include "zscript/statusbar.zs"
-#include "zscript/usermapmenu.zs"
-#include "zscript/maptypes.zs"
-#include "zscript/coreactor.zs"
+#include "zscript/games/statusbar.zs"
+#include "zscript/games/usermapmenu.zs"
+#include "zscript/games/maptypes.zs"
+#include "zscript/games/coreactor.zs"
 #include "zscript/level_postprocessor.zs"
-#include "zscript/level_compatibility.zs"
+#include "zscript/games/level_compatibility.zs"
 #include "zscript/alt_hud.zs"
 #include "zscript/games/duke/dukeactor.zs"
 #include "zscript/games/blood/bloodactor.zs"
diff --git a/wadsrc/static/zscript/games/blood/bloodactor.zs b/wadsrc/static/zscript/games/blood/bloodactor.zs
index ec7541d81..a6b14c67a 100644
--- a/wadsrc/static/zscript/games/blood/bloodactor.zs
+++ b/wadsrc/static/zscript/games/blood/bloodactor.zs
@@ -1,3 +1,5 @@
 class BloodActor : CoreActor native
 {
+	native void ChangeType(class<BloodActor> newtype);
+
 }
diff --git a/wadsrc/static/zscript/coreactor.zs b/wadsrc/static/zscript/games/coreactor.zs
similarity index 100%
rename from wadsrc/static/zscript/coreactor.zs
rename to wadsrc/static/zscript/games/coreactor.zs
diff --git a/wadsrc/static/zscript/level_compatibility.zs b/wadsrc/static/zscript/games/level_compatibility.zs
similarity index 100%
rename from wadsrc/static/zscript/level_compatibility.zs
rename to wadsrc/static/zscript/games/level_compatibility.zs
diff --git a/wadsrc/static/zscript/maptypes.zs b/wadsrc/static/zscript/games/maptypes.zs
similarity index 100%
rename from wadsrc/static/zscript/maptypes.zs
rename to wadsrc/static/zscript/games/maptypes.zs
diff --git a/wadsrc/static/zscript/razebase.zs b/wadsrc/static/zscript/games/razebase.zs
similarity index 100%
rename from wadsrc/static/zscript/razebase.zs
rename to wadsrc/static/zscript/games/razebase.zs
diff --git a/wadsrc/static/zscript/statusbar.zs b/wadsrc/static/zscript/games/statusbar.zs
similarity index 100%
rename from wadsrc/static/zscript/statusbar.zs
rename to wadsrc/static/zscript/games/statusbar.zs
diff --git a/wadsrc/static/zscript/usermapmenu.zs b/wadsrc/static/zscript/games/usermapmenu.zs
similarity index 100%
rename from wadsrc/static/zscript/usermapmenu.zs
rename to wadsrc/static/zscript/games/usermapmenu.zs
diff --git a/wadsrc/static/zscript/gamescreen.zs b/wadsrc/static/zscript/gamescreen.zs
deleted file mode 100644
index 143f228a0..000000000
--- a/wadsrc/static/zscript/gamescreen.zs
+++ /dev/null
@@ -1,18 +0,0 @@
-
-// Base class for game screens.
-class GameScreen : Object ui
-{
-	virtual bool OnEvent(InputEvent ev)
-	{
-		return false;
-	}
-
-	virtual bool Tick(int framenum)
-	{
-		return false;
-	}
-
-	virtual void Draw()
-	{
-	}
-}
diff --git a/wadsrc/static/zscript/zscript_license.txt b/wadsrc/static/zscript/zscript_license.txt
new file mode 100644
index 000000000..c9e5b20f1
--- /dev/null
+++ b/wadsrc/static/zscript/zscript_license.txt
@@ -0,0 +1,127 @@
+Unless noted differently in the file, the following license applies to all ZScript sources *outside* the 'engine' folder:
+
+//-----------------------------------------------------------------------------
+//
+// Copyright 1993-2023 Christoph Oelckers et.al.
+//
+// This program is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 2 of the License, or
+// (at your option) any later version.
+//
+// This program is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with this program.  If not, see http://www.gnu.org/licenses/
+//
+//-----------------------------------------------------------------------------
+//
+
+Unless noted differently in the file, the following license applies to all ZScript sources *inside* the 'engine' folder:
+
+/*
+**
+**---------------------------------------------------------------------------
+** Copyright 2005-2023 Randy Heit, Christoph Oelckers et.al.
+** All rights reserved.
+**
+** Redistribution and use in source and binary forms, with or without
+** modification, are permitted provided that the following conditions
+** are met:
+**
+** 1. Redistributions of source code must retain the above copyright
+**    notice, this list of conditions and the following disclaimer.
+** 2. Redistributions in binary form must reproduce the above copyright
+**    notice, this list of conditions and the following disclaimer in the
+**    documentation and/or other materials provided with the distribution.
+** 3. The name of the author may not be used to endorse or promote products
+**    derived from this software without specific prior written permission.
+**
+** THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
+** IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
+** OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
+** IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
+** INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
+** NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
+** THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+**---------------------------------------------------------------------------
+**
+*/
+
+Unless noted differently in the file, the following license applies to all ZScript sources *inside* the 'games/duke' folder:
+Unless noted differently in the file, all scripted code for Duke Nukem 3D/Redneck Rampage that has not been newly written originates from:
+* EDuke 2.0 for Duke Nukem 3D
+* DukeGDX for the World Tour extensions
+* Redneck Reconstructed for Redneck Rampage
+
+//-------------------------------------------------------------------------
+/*
+Copyright (C) 1996, 2003 - 3D Realms Entertainment
+Copyright (C) 2000, 2003 - Matt Saettler (EDuke Enhancements)
+Copyright (C) 2017-2019 Nuke.YKT
+Copyright (C) 2020-2023 - Christoph Oelckers
+
+This program is free software; you can redistribute it and/or
+modify it under the terms of the GNU General Public License
+as published by the Free Software Foundation; either version 2
+of the License, or (at your option) any later version.
+
+This program is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  
+
+See the GNU General Public License for more details.
+
+*/
+//-------------------------------------------------------------------------
+
+Unless noted differently in the file, the following license applies to all ZScript sources *inside* the 'games/blood' folder:
+Unless noted differently in the file, all scripted code for Blood that has not been newly written originates from Blood-RE:
+
+//-------------------------------------------------------------------------
+/*
+Copyright (C) 2018, 2022 nukeykt
+Copyright (C) 2020-2022 Christoph Oelckers
+
+This file is part of Raze
+
+Raze is free software; you can redistribute it and/or
+modify it under the terms of the GNU General Public License version 2
+of the License, or (at your option) any later version.
+
+This program is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+
+See the GNU General Public License for more details.
+
+*/
+//-------------------------------------------------------------------------
+
+Unless noted differently in the file, the following license applies to all ZScript sources *inside* the 'games/sw' folder:
+
+//-------------------------------------------------------------------------
+/*
+Copyright (C) 1997, 2005 - 3D Realms Entertainment
+Copyright (C) 2020-2022 Christoph Oelckers
+
+This program is free software; you can redistribute it and/or
+modify it under the terms of the GNU General Public License
+as published by the Free Software Foundation; either version 2
+of the License, or (at your option) any later version.
+
+This program is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+
+See the GNU General Public License for more details.
+
+*/
+//-------------------------------------------------------------------------
+