diff --git a/source/games/duke/src/actors.cpp b/source/games/duke/src/actors.cpp
index 621031502..626b8ea2a 100644
--- a/source/games/duke/src/actors.cpp
+++ b/source/games/duke/src/actors.cpp
@@ -644,6 +644,7 @@ void movecrane(DDukeActor *actor, int crane)
 	auto spri = actor->s;
 	auto sectp = spri->sector();
 	int x;
+	auto& cpt = cranes[t[4]];
 
 	//t[0] = state
 	//t[1] = checking sector number
@@ -661,8 +662,8 @@ void movecrane(DDukeActor *actor, int crane)
 			case STAT_ZOMBIEACTOR:
 			case STAT_STANDABLE:
 			case STAT_PLAYER:
-				spri->ang = getangle(msx[t[4] + 1] - spri->x, msy[t[4] + 1] - spri->y);
-				setsprite(a2, msx[t[4] + 1], msy[t[4] + 1], a2->s->z);
+				spri->ang = getangle(cpt.polex - spri->x, cpt.poley - spri->y);
+				setsprite(a2, cpt.polex, cpt.poley, a2->s->z);
 				t[0]++;
 				return;
 			}
@@ -758,7 +759,7 @@ void movecrane(DDukeActor *actor, int crane)
 			if ((sectp->floorz - spri->z) > 8192)
 				spri->picnum++;
 
-		if (spri->z < msx[t[4] + 2])
+		if (spri->z < cpt.z)
 		{
 			t[0]++;
 			spri->xvel = 0;
@@ -770,16 +771,16 @@ void movecrane(DDukeActor *actor, int crane)
 	{
 		if (spri->xvel < 192)
 			spri->xvel += 8;
-		spri->ang = getangle(msx[t[4]] - spri->x, msy[t[4]] - spri->y);
+		spri->ang = getangle(cpt.x - spri->x, cpt.y - spri->y);
 		ssp(actor, CLIPMASK0);
-		if (((spri->x - msx[t[4]]) * (spri->x - msx[t[4]]) + (spri->y - msy[t[4]]) * (spri->y - msy[t[4]])) < (128 * 128))
+		if (((spri->x - cpt.x) * (spri->x - cpt.x) + (spri->y - cpt.y) * (spri->y - cpt.y)) < (128 * 128))
 			t[0]++;
 	}
 
 	else if (t[0] == 9)
 		t[0] = 0;
 
-	setsprite(ScriptIndexToActor(msy[t[4] + 2]), spri->x, spri->y, spri->z - (34 << 8));
+	setsprite(cpt.poleactor, spri->x, spri->y, spri->z - (34 << 8));
 
 	auto Owner = actor->GetOwner();
 	if (Owner != nullptr || actor->IsActiveCrane())
diff --git a/source/games/duke/src/constants.h b/source/games/duke/src/constants.h
index 2ada74e68..e0ebee802 100644
--- a/source/games/duke/src/constants.h
+++ b/source/games/duke/src/constants.h
@@ -267,6 +267,7 @@ enum
 	MAXANIMATES     = 1024,
 	MAXANIMWALLS    = 512,
 	MAXANIMPOINTS   = 2048,
+	MAXCRANES		= 16,
 };
 
 enum amoveflags_t
diff --git a/source/games/duke/src/global.cpp b/source/games/duke/src/global.cpp
index 9a1ceaa70..a7df7869b 100644
--- a/source/games/duke/src/global.cpp
+++ b/source/games/duke/src/global.cpp
@@ -87,6 +87,8 @@ int show_shareware;							// display only.
 int rtsplaying;								// RTS playback state
 int tempwallptr;							// msx/y index.
 int msx[MAXANIMPOINTS], msy[MAXANIMPOINTS];
+TArray<CraneDef> cranes;
+
 bool sound445done;							// used in checksectors_r. This was local state inside a function, but this must be maintained globally and serialized
 
 // serialized
diff --git a/source/games/duke/src/global.h b/source/games/duke/src/global.h
index 3a125611f..b87d5019b 100644
--- a/source/games/duke/src/global.h
+++ b/source/games/duke/src/global.h
@@ -120,7 +120,8 @@ extern int geocnt;
 extern short ambientlotag[64];
 extern short ambienthitag[64];
 extern unsigned ambientfx;
-extern int msx[MAXANIMPOINTS], msy[MAXANIMPOINTS];
+extern int msx[MAXANIMPOINTS], msy[MAXANIMPOINTS]; // todo: unlimit
+extern TArray<CraneDef> cranes;
 extern int WindTime, WindDir;
 extern short fakebubba_spawn, mamaspawn_count, banjosound;
 extern short BellTime;
diff --git a/source/games/duke/src/premap.cpp b/source/games/duke/src/premap.cpp
index a9fd69054..0f4663381 100644
--- a/source/games/duke/src/premap.cpp
+++ b/source/games/duke/src/premap.cpp
@@ -420,6 +420,7 @@ void resetprestat(int snum,int g)
 	paused             = 0;
 	ud.cameraactor =nullptr;
 	tempwallptr             = 0;
+	cranes.Clear();
 	camsprite               =nullptr;
 	earthquaketime          = 0;
 
diff --git a/source/games/duke/src/savegame.cpp b/source/games/duke/src/savegame.cpp
index 55278b9b1..8879ffbd3 100644
--- a/source/games/duke/src/savegame.cpp
+++ b/source/games/duke/src/savegame.cpp
@@ -55,6 +55,21 @@ void lava_serialize(FSerializer& arc);
 void SerializeGameVars(FSerializer &arc);
 
 
+FSerializer& Serialize(FSerializer& arc, const char* keyname, CraneDef& w, CraneDef* def)
+{
+	if (arc.BeginObject(keyname))
+	{
+		arc("x", w.x)
+			("y", w.y)
+			("z", w.z)
+			("polex", w.polex)
+			("poley", w.poley)
+			("pole", w.poleactor)
+			.EndObject();
+	}
+	return arc;
+}
+
 FSerializer& Serialize(FSerializer& arc, const char* keyname, animwalltype& w, animwalltype* def)
 {
 	if (arc.BeginObject(keyname))
@@ -373,6 +388,7 @@ void GameInterface::SerializeGameState(FSerializer& arc)
 			.Array("sectorextra", sectorextra, numsectors)
 			("rtsplaying", rtsplaying)
 			("tempwallptr", tempwallptr)
+			("cranes", cranes)
 			("sound445done", sound445done)
 			.Array("players", ps, ud.multimode)
 			("spriteqamount", spriteqamount)
diff --git a/source/games/duke/src/spawn.cpp b/source/games/duke/src/spawn.cpp
index d4712a8ff..5eba8ded8 100644
--- a/source/games/duke/src/spawn.cpp
+++ b/source/games/duke/src/spawn.cpp
@@ -488,11 +488,12 @@ void initcrane(DDukeActor* actj, DDukeActor* acti, int CRANEPOLE)
 
 	sp->picnum += 2;
 	sp->z = sector[sect].ceilingz + (48 << 8);
-	t[4] = tempwallptr;
+	t[4] = cranes.Reserve(1);
 
-	msx[tempwallptr] = sp->x;
-	msy[tempwallptr] = sp->y;
-	msx[tempwallptr + 2] = sp->z;
+	auto& apt = cranes[t[4]];
+	apt.x = sp->x;
+	apt.y = sp->y;
+	apt.z = sp->z;
 
 	DukeStatIterator it(STAT_DEFAULT);
 	while (auto act = it.Next())
@@ -500,15 +501,15 @@ void initcrane(DDukeActor* actj, DDukeActor* acti, int CRANEPOLE)
 		auto ss = act->s;
 		if (ss->picnum == CRANEPOLE && sp->hitag == (ss->hitag))
 		{
-			msy[tempwallptr + 2] = ActorToScriptIndex(act);
+			apt.poleactor = act;
 
 			t[1] = ss->sectnum;
 
 			ss->xrepeat = 48;
 			ss->yrepeat = 128;
 
-			msx[tempwallptr + 1] = ss->x;
-			msy[tempwallptr + 1] = ss->y;
+			apt.polex = ss->x;
+			apt.poley = ss->y;
 
 			ss->x = sp->x;
 			ss->y = sp->y;
@@ -520,7 +521,6 @@ void initcrane(DDukeActor* actj, DDukeActor* acti, int CRANEPOLE)
 		}
 	}
 
-	tempwallptr += 3;
 	acti->SetOwner(nullptr);
 	sp->extra = 8;
 	changeactorstat(acti, STAT_STANDABLE);
diff --git a/source/games/duke/src/types.h b/source/games/duke/src/types.h
index e70fd75f2..14afdc6d1 100644
--- a/source/games/duke/src/types.h
+++ b/source/games/duke/src/types.h
@@ -160,6 +160,13 @@ struct player_orig
 	short oa, os;
 };
 
+struct CraneDef
+{
+	int x, y, z;
+	int polex, poley;
+	DDukeActor* poleactor;
+};
+
 struct player_struct 
 {
 	// This is basically the version from JFDuke but this first block contains a few changes to make it work with other parts of Raze.