diff --git a/source/CMakeLists.txt b/source/CMakeLists.txt
index 52af19b7b..d2723f810 100644
--- a/source/CMakeLists.txt
+++ b/source/CMakeLists.txt
@@ -773,6 +773,7 @@ set (PCH_SOURCES
 
 	core/movie/playmve.cpp
 	core/automap.cpp
+	core/binaryangle.cpp
 	core/cheats.cpp
 	core/cheathandler.cpp
 	core/mathutil.cpp
diff --git a/source/core/binaryangle.cpp b/source/core/binaryangle.cpp
new file mode 100644
index 000000000..e50abcbec
--- /dev/null
+++ b/source/core/binaryangle.cpp
@@ -0,0 +1,64 @@
+/*
+** binaryangle.cpp
+**
+** type safe representations of high precision angle and horizon values. 
+** Angle uses natural 32 bit overflow to clamp to one rotation.
+**
+**---------------------------------------------------------------------------
+** Copyright 2020 Christoph Oelckers
+** 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.
+**---------------------------------------------------------------------------
+**
+*/
+
+#include "binaryangle.h"
+
+FSerializer &Serialize(FSerializer &arc, const char *key, binangle &obj, binangle *defval)
+{
+	if (arc.BeginObject(key))
+	{
+		arc("value", obj.value).EndObject();
+	}
+	return arc;
+}
+
+FSerializer &Serialize(FSerializer &arc, const char *key, lookangle &obj, lookangle *defval)
+{
+	if (arc.BeginObject(key))
+	{
+		arc("value", obj.value).EndObject();
+	}
+	return arc;
+}
+
+FSerializer &Serialize(FSerializer &arc, const char *key, fixedhoriz &obj, fixedhoriz *defval)
+{
+	if (arc.BeginObject(key))
+	{
+		arc("value", obj.value).EndObject();
+	}
+	return arc;
+}
diff --git a/source/core/binaryangle.h b/source/core/binaryangle.h
index 811c5acd1..f7ed7c566 100644
--- a/source/core/binaryangle.h
+++ b/source/core/binaryangle.h
@@ -39,8 +39,11 @@
 #include <math.h>
 #include "m_fixed.h"
 #include "xs_Float.h"	// needed for reliably overflowing float->int conversions.
+#include "serializer.h"
 #include "build.h"
 
+class FSerializer;
+
 enum
 {
 	BAMUNIT = 1 << 21
@@ -57,6 +60,8 @@ class binangle
 	friend constexpr binangle buildang(uint32_t v);
 	friend binangle radang(double v);
 	friend binangle degang(double v);
+
+	friend FSerializer &Serialize(FSerializer &arc, const char *key, binangle &obj, binangle *defval);
 	
 public:
 	binangle() = default;
@@ -119,6 +124,8 @@ class lookangle
 	friend constexpr lookangle buildlook(int32_t v);
 	friend lookangle radlook(double v);
 	friend lookangle deglook(double v);
+
+	friend FSerializer &Serialize(FSerializer &arc, const char *key, lookangle &obj, lookangle *defval);
 	
 public:
 	lookangle() = default;
@@ -201,6 +208,8 @@ class fixedhoriz
 	friend constexpr fixedhoriz buildhoriz(int v);
 	friend fixedhoriz pitchhoriz(double v);
 	friend fixedhoriz bamhoriz(int32_t v);
+
+	friend FSerializer &Serialize(FSerializer &arc, const char *key, fixedhoriz &obj, fixedhoriz *defval);
 	
 public:
 	fixedhoriz() = default;
diff --git a/source/games/duke/src/savegame.cpp b/source/games/duke/src/savegame.cpp
index 1d11c04f6..998fb26a5 100644
--- a/source/games/duke/src/savegame.cpp
+++ b/source/games/duke/src/savegame.cpp
@@ -113,12 +113,12 @@ FSerializer& Serialize(FSerializer& arc, const char* keyname, player_struct& w,
 		arc("posx", w.posx)
 			("posy", w.posy)
 			("posz", w.posz)
-			//("q16ang", w.angle.ang.asq16())
-			//("q16horiz", w.horizon.horiz.asq16())
-			//("q16horizoff", w.horizon.horizoff.asq16())
-			//("q16rotscrnang", w.angle.rotscrnang.asbuild())
-			//("q16look_ang", w.angle.look_ang.asq16())
-			//("one_eighty_count", w.angle.spin.asq16())
+			("ang", w.angle.ang)
+			("look_ang", w.angle.look_ang)
+			("rotscrnang", w.angle.rotscrnang)
+			("horiz", w.horizon.horiz)
+			("horizoff", w.horizon.horizoff)
+			("spin", w.angle.spin)
 			("gotweapon", w.gotweapon)
 			("palette", w.palette)
 			("pals", w.pals)
@@ -284,10 +284,11 @@ FSerializer& Serialize(FSerializer& arc, const char* keyname, player_struct& w,
 			.EndObject();
 
 		w.invdisptime = 0;
-		//w.angle.oang = w.angle.ang;
-		//w.horizon.ohoriz = w.horizon.horiz;
-		//w.horizon.ohorizoff = w.horizon.horizoff;
-		//w.oq16rotscrnang = w.angle.rotscrnang;
+		w.angle.oang = w.angle.ang;
+		w.angle.olook_ang = w.angle.look_ang;
+		w.angle.orotscrnang = w.angle.rotscrnang;
+		w.horizon.ohoriz = w.horizon.horiz;
+		w.horizon.ohorizoff = w.horizon.horizoff;
 		w.oposx = w.posx;
 		w.oposy = w.posy;
 		w.oposz = w.posz;