diff --git a/source/games/duke/src/actors_d.cpp b/source/games/duke/src/actors_d.cpp
index 41bd670b3..d53b50f3d 100644
--- a/source/games/duke/src/actors_d.cpp
+++ b/source/games/duke/src/actors_d.cpp
@@ -1372,8 +1372,8 @@ void movetransports_d(void)
 							ps[p].backupxy();
 
 							if (ps[p].jetpack_on && (PlayerInput(p, SB_JUMP) || ps[p].jetpack_on < 11))
-								ps[p].PlayerNowPosition.Z = Owner->spr.pos.Z - 24;
-							else ps[p].PlayerNowPosition.Z = Owner->spr.pos.Z + 24;
+								ps[p].posZset(Owner->spr.pos.Z - 24);
+							else ps[p].posZset(Owner->spr.pos.Z + 24);
 							ps[p].backupz();
 
 							auto pa = ps[p].GetActor();
@@ -1397,7 +1397,7 @@ void movetransports_d(void)
 						}
 						if (ps[p].GetActor()->spr.extra > 0)
 							S_PlayActorSound(DUKE_UNDERWATER, act2);
-						ps[p].PlayerNowPosition.Z = Owner->sector()->ceilingz + 7;
+						ps[p].posZset(Owner->sector()->ceilingz + 7);
 						ps[p].backupz();
 
 						// this is actually below the precision óf the original Build coordinate system...
@@ -1416,7 +1416,7 @@ void movetransports_d(void)
 						}
 						S_PlayActorSound(DUKE_GASP, act2);
 
-						ps[p].PlayerNowPosition.Z = Owner->sector()->floorz - 7;
+						ps[p].posZset(Owner->sector()->floorz - 7);
 						ps[p].backupz();
 
 						ps[p].jumping_toggle = 1;
diff --git a/source/games/duke/src/actors_r.cpp b/source/games/duke/src/actors_r.cpp
index 8fab05bad..a7770f5bd 100644
--- a/source/games/duke/src/actors_r.cpp
+++ b/source/games/duke/src/actors_r.cpp
@@ -1257,8 +1257,8 @@ void movetransports_r(void)
 							ps[p].backupxy();
 
 							if (ps[p].jetpack_on && (PlayerInput(p, SB_JUMP) || ps[p].jetpack_on < 11))
-								ps[p].PlayerNowPosition.Z = Owner->spr.pos.Z - 24;
-							else ps[p].PlayerNowPosition.Z = Owner->spr.pos.Z + 24;
+								ps[p].posZset(Owner->spr.pos.Z - 24);
+							else ps[p].posZset(Owner->spr.pos.Z + 24);
 							ps[p].backupz();
 
 							ChangeActorSect(act2, Owner->sector());
@@ -1274,7 +1274,7 @@ void movetransports_r(void)
 						if (onfloorz && sectlotag == 160 && ps[p].PlayerNowPosition.Z > sectp->floorz - 48)
 						{
 							k = 2;
-							ps[p].PlayerNowPosition.Z = Owner->sector()->ceilingz + 7;
+							ps[p].posZset(Owner->sector()->ceilingz + 7);
 							ps[p].backupz();
 						}
 
@@ -1282,7 +1282,7 @@ void movetransports_r(void)
 						{
 							k = 2;
 							if (ps[p].GetActor()->spr.extra <= 0) break;
-							ps[p].PlayerNowPosition.Z = Owner->sector()->floorz - 49;
+							ps[p].posZset(Owner->sector()->floorz - 49);
 							ps[p].backupz();
 						}
 					}
@@ -1297,7 +1297,7 @@ void movetransports_r(void)
 							FX_StopAllSounds();
 						}
 						S_PlayActorSound(DUKE_UNDERWATER, ps[p].GetActor());
-						ps[p].PlayerNowPosition.Z = Owner->sector()->ceilingz + 7;
+						ps[p].posZset(Owner->sector()->ceilingz + 7);
 						ps[p].backupz();
 						if (ps[p].OnMotorcycle)
 							ps[p].moto_underwater = 1;
@@ -1313,7 +1313,7 @@ void movetransports_r(void)
 						}
 						S_PlayActorSound(DUKE_GASP, ps[p].GetActor());
 
-						ps[p].PlayerNowPosition.Z = Owner->sector()->floorz - 7;
+						ps[p].posZset(Owner->sector()->floorz - 7);
 						ps[p].backupz();
 					}
 
diff --git a/source/games/duke/src/player_d.cpp b/source/games/duke/src/player_d.cpp
index f919cd08c..8a265cce7 100644
--- a/source/games/duke/src/player_d.cpp
+++ b/source/games/duke/src/player_d.cpp
@@ -1732,7 +1732,7 @@ static void operateJetpack(int snum, ESyncBits actions, int psectlotag, double f
 	if (p->PlayerNowPosition.Z > floorz - k)
 		p->PlayerNowPosition.Z += ((floorz - k) - p->PlayerNowPosition.Z) * 0.5;
 	if (p->PlayerNowPosition.Z < pact->ceilingz + 18)
-		p->PlayerNowPosition.Z = pact->ceilingz + 18;
+		p->posZset(pact->ceilingz + 18);
 
 }
 
@@ -1791,7 +1791,7 @@ static void movement(int snum, ESyncBits actions, sectortype* psect, double floo
 
 		// not jumping or crouching
 		if ((actions & (SB_JUMP|SB_CROUCH)) == 0 && p->on_ground && (psect->floorstat & CSTAT_SECTOR_SLOPE) && p->PlayerNowPosition.Z >= (floorz - i - 16))
-			p->PlayerNowPosition.Z = floorz - i;
+			p->posZset(floorz - i);
 		else
 		{
 			p->on_ground = 0;
@@ -1859,7 +1859,7 @@ static void movement(int snum, ESyncBits actions, sectortype* psect, double floo
 			p->PlayerNowPosition.Z += ((floorz - i * 0.5) - p->PlayerNowPosition.Z) * 0.5; //Smooth on the water
 			if (p->on_warping_sector == 0 && p->PlayerNowPosition.Z > floorz - 16)
 			{
-				p->PlayerNowPosition.Z = floorz - 16;
+				p->posZset(floorz - 16);
 				p->vel.Z *= 0.5;
 			}
 		}
@@ -1918,7 +1918,7 @@ static void movement(int snum, ESyncBits actions, sectortype* psect, double floo
 		if (p->vel.Z < 0)
 			p->vel.X = p->vel.Y = 0;
 		p->vel.Z = 0.5;
-		p->PlayerNowPosition.Z = ceilingz + 4;
+		p->posZset(ceilingz + 4);
 	}
 }
 
@@ -1984,7 +1984,7 @@ static void underwater(int snum, ESyncBits actions, double floorz, double ceilin
 
 	if (p->PlayerNowPosition.Z < ceilingz + 4)
 	{
-		p->PlayerNowPosition.Z = ceilingz + 4;
+		p->posZset(ceilingz + 4);
 		p->vel.Z = 0;
 	}
 
@@ -2043,7 +2043,7 @@ int operateTripbomb(int snum)
 			auto delta = hit.hitpos.XY() - p->posXY();
 			if (delta.LengthSquared() < (18.125 * 18.125))
 			{
-				p->PlayerNowPosition.Z = p->PlayerOldPosition.Z;
+				p->posZset(p->PlayerOldPosition.Z);
 				p->vel.Z = 0;
 				return 1;
 			}
@@ -2585,7 +2585,7 @@ static void operateweapon(int snum, ESyncBits actions)
 	case TRIPBOMB_WEAPON:	// Claymore in NAM
 		if (p->kickback_pic < 4)
 		{
-			p->PlayerNowPosition.Z = p->PlayerOldPosition.Z;
+			p->posZset(p->PlayerOldPosition.Z);
 			p->vel.Z = 0;
 			if (p->kickback_pic == 3)
 				fi.shoot(pact, HANDHOLDINGLASER);
diff --git a/source/games/duke/src/player_r.cpp b/source/games/duke/src/player_r.cpp
index 7167365ee..cc440bc3f 100644
--- a/source/games/duke/src/player_r.cpp
+++ b/source/games/duke/src/player_r.cpp
@@ -2080,7 +2080,7 @@ static void movement(int snum, ESyncBits actions, sectortype* psect, double floo
 	if (p->PlayerNowPosition.Z < floorz - i) //falling
 	{
 		if ((actions & (SB_JUMP|SB_CROUCH)) == 0 && p->on_ground && (psect->floorstat & CSTAT_SECTOR_SLOPE) && p->PlayerNowPosition.Z >= (floorz - i - 16))
-			p->PlayerNowPosition.Z = floorz - i;
+			p->posZset(floorz - i);
 		else
 		{
 			p->on_ground = 0;
@@ -2186,7 +2186,7 @@ static void movement(int snum, ESyncBits actions, sectortype* psect, double floo
 			p->PlayerNowPosition.Z += ((floorz - i * 0.5) - p->PlayerNowPosition.Z) * 0.5; //Smooth on the water
 			if (p->on_warping_sector == 0 && p->PlayerNowPosition.Z > floorz - 16)
 			{
-				p->PlayerNowPosition.Z = floorz - 16;
+				p->posZset(floorz - 16);
 				p->vel.Z *= 0.5;
 			}
 		}
@@ -2241,7 +2241,7 @@ static void movement(int snum, ESyncBits actions, sectortype* psect, double floo
 		if (p->vel.Z < 0)
 			p->vel.X = p->vel.Y = 0;
 		p->vel.Z = 0.5;
-		p->PlayerNowPosition.Z = ceilingz + 4;
+		p->posZset(ceilingz + 4);
 	}
 }
 
@@ -2303,7 +2303,7 @@ static void underwater(int snum, ESyncBits actions, double floorz, double ceilin
 
 	if (p->PlayerNowPosition.Z < ceilingz + 4)
 	{
-		p->PlayerNowPosition.Z = ceilingz + 4;
+		p->posZset(ceilingz + 4);
 		p->vel.Z = 0;
 	}
 
diff --git a/source/games/duke/src/player_w.cpp b/source/games/duke/src/player_w.cpp
index 8e448e441..3106662ba 100644
--- a/source/games/duke/src/player_w.cpp
+++ b/source/games/duke/src/player_w.cpp
@@ -436,7 +436,7 @@ void operateweapon_ww(int snum, ESyncBits actions)
 		if (aplWeaponFlags(p->curr_weapon, snum) & WEAPON_FLAG_STANDSTILL
 			&& p->kickback_pic < (aplWeaponFireDelay(p->curr_weapon, snum) + 1))
 		{
-			p->PlayerNowPosition.Z = p->PlayerOldPosition.Z;
+			p->posZset(p->PlayerOldPosition.Z);
 			p->vel.Z = 0;
 		}
 		if (p->kickback_pic == aplWeaponSound2Time(p->curr_weapon, snum))
diff --git a/source/games/duke/src/types.h b/source/games/duke/src/types.h
index 4716922f3..629fb8449 100644
--- a/source/games/duke/src/types.h
+++ b/source/games/duke/src/types.h
@@ -370,6 +370,11 @@ struct player_struct
 	{
 		return PlayerNowPosition.XY();
 	}
+
+	void posZset(const double val)
+	{
+		PlayerNowPosition.Z = val;
+	}
 };
 
 struct Cycler