diff --git a/source/core/gameinput.cpp b/source/core/gameinput.cpp
index 7913857db..e93778e56 100644
--- a/source/core/gameinput.cpp
+++ b/source/core/gameinput.cpp
@@ -127,12 +127,12 @@ void processMovement(InputPacket* const currInput, InputPacket* const inputBuffe
 	{
 		const float turndir = clamp(turning + strafing * !allowstrafe, -1.f, 1.f);
 		const float turnspeed = float(getTicrateScale(YAW_TURNSPEEDS[keymove]) * turnscale * (isTurboTurnTime() ? 1. : YAW_PREAMBLESCALE));
-		currInput->avel += hidInput->mouseturnx + (hidInput->dyaw * hidspeed + turndir * turnspeed) * scaleAdjustf;
+		currInput->avel += hidInput->mouseturnx - (hidInput->dyaw * hidspeed - turndir * turnspeed) * scaleAdjustf;
 		if (turndir) updateTurnHeldAmt(scaleAdjust); else resetTurnHeldAmt();
 	}
 	else
 	{
-		currInput->svel += hidInput->mousemovex + (hidInput->dyaw + turning) * keymove * scaleAdjustf;
+		currInput->svel += hidInput->mousemovex - (hidInput->dyaw - turning) * keymove * scaleAdjustf;
 	}
 
 	// process player pitch input.
diff --git a/source/core/inputstate.cpp b/source/core/inputstate.cpp
index b4c59fb12..3bda76595 100644
--- a/source/core/inputstate.cpp
+++ b/source/core/inputstate.cpp
@@ -212,7 +212,7 @@ void getHidInput(HIDInput* const hidInput)
 
 		I_GetAxes(joyaxes);
 
-		hidInput->dyaw += -joyaxes[JOYAXIS_Yaw];
+		hidInput->dyaw += joyaxes[JOYAXIS_Yaw];
 		hidInput->dpitch += -joyaxes[JOYAXIS_Pitch];
 		hidInput->dforward += joyaxes[JOYAXIS_Forward] * .5f;
 		hidInput->dside += joyaxes[JOYAXIS_Side] * .5f;		
@@ -405,9 +405,9 @@ void ApplyGlobalInput(InputPacket& input, HIDInput* hidInput, bool const croucha
 		else dpad_lock &= ~1;
 		if (hidInput->dforward < 0 && !(dpad_lock & 2)) { dpad_lock |= 2;  input.setNewWeapon(WeaponSel_Next); }
 		else dpad_lock &= ~2;
-		if ((hidInput->dside < 0 || hidInput->dyaw < 0) && !(dpad_lock & 4)) { dpad_lock |= 4;  input.actions |= SB_INVPREV; }
+		if ((hidInput->dside < 0 || hidInput->dyaw > 0) && !(dpad_lock & 4)) { dpad_lock |= 4;  input.actions |= SB_INVPREV; }
 		else dpad_lock &= ~4;
-		if ((hidInput->dside > 0 || hidInput->dyaw > 0) && !(dpad_lock & 8)) { dpad_lock |= 8;  input.actions |= SB_INVNEXT; }
+		if ((hidInput->dside > 0 || hidInput->dyaw < 0) && !(dpad_lock & 8)) { dpad_lock |= 8;  input.actions |= SB_INVNEXT; }
 		else dpad_lock &= ~8;
 
 		// This eats the controller input for regular use
diff --git a/source/games/duke/src/input.cpp b/source/games/duke/src/input.cpp
index 892c2eb81..97589d589 100644
--- a/source/games/duke/src/input.cpp
+++ b/source/games/duke/src/input.cpp
@@ -564,13 +564,13 @@ static float motoApplyTurn(player_struct* p, HIDInput* const hidInput, bool cons
 	{
 		resetTurnHeldAmt();
 
-		if (kbdLeft || hidInput->mouseturnx < 0 || hidInput->dyaw < 0)
+		if (kbdLeft || hidInput->mouseturnx < 0 || hidInput->dyaw > 0)
 		{
 			p->TiltStatus -= (float)factor;
 			if (p->TiltStatus < -10)
 				p->TiltStatus = -10;
 		}
-		else if (kbdRight || hidInput->mouseturnx > 0 || hidInput->dyaw > 0)
+		else if (kbdRight || hidInput->mouseturnx > 0 || hidInput->dyaw < 0)
 		{
 			p->TiltStatus += (float)factor;
 			if (p->TiltStatus > 10)
@@ -584,7 +584,7 @@ static float motoApplyTurn(player_struct* p, HIDInput* const hidInput, bool cons
 			constexpr float velScale = (3.f / 10.f);
 			const float baseVel = (buttonMap.ButtonDown(gamefunc_Move_Backward) || hidInput->dforward < 0) && p->MotoSpeed <= 0 ? -VEHICLETURN : VEHICLETURN;
 
-			if (kbdLeft || p->moto_drink < 0 || hidInput->mouseturnx < 0 || hidInput->dyaw < 0)
+			if (kbdLeft || p->moto_drink < 0 || hidInput->mouseturnx < 0 || hidInput->dyaw > 0)
 			{
 				p->TiltStatus -= (float)factor;
 
@@ -597,13 +597,13 @@ static float motoApplyTurn(player_struct* p, HIDInput* const hidInput, bool cons
 				if (hidInput->mouseturnx < 0)
 					turnvel -= Sgn(baseVel) * sqrtf(abs(p->MotoSpeed > 0 ? baseVel : baseVel * velScale) * -(hidInput->mouseturnx / factor) * (7.f / 20.f));
 
-				if (hidInput->dyaw < 0)
+				if (hidInput->dyaw > 0)
 					turnvel += (p->MotoSpeed > 0 ? baseVel : baseVel * velScale) * hidInput->dyaw;
 
 				updateTurnHeldAmt(factor);
 			}
 
-			if (kbdRight || p->moto_drink > 0 || hidInput->mouseturnx > 0 || hidInput->dyaw > 0)
+			if (kbdRight || p->moto_drink > 0 || hidInput->mouseturnx > 0 || hidInput->dyaw < 0)
 			{
 				p->TiltStatus += (float)factor;
 
@@ -616,7 +616,7 @@ static float motoApplyTurn(player_struct* p, HIDInput* const hidInput, bool cons
 				if (hidInput->mouseturnx > 0)
 					turnvel += Sgn(baseVel) * sqrtf(abs(p->MotoSpeed > 0 ? baseVel : baseVel * velScale) * (hidInput->mouseturnx / factor) * (7.f / 20.f));
 
-				if (hidInput->dyaw > 0)
+				if (hidInput->dyaw < 0)
 					turnvel += (p->MotoSpeed > 0 ? baseVel : baseVel * velScale) * hidInput->dyaw;
 
 				updateTurnHeldAmt(factor);
@@ -657,7 +657,7 @@ static float boatApplyTurn(player_struct *p, HIDInput* const hidInput, bool cons
 			const float velScale = !p->NotOnWater? 1.f : (6.f / 19.f);
 			const float baseVel = VEHICLETURN * velScale;
 
-			if (kbdLeft || p->moto_drink < 0 || hidInput->mouseturnx < 0 || hidInput->dyaw < 0)
+			if (kbdLeft || p->moto_drink < 0 || hidInput->mouseturnx < 0 || hidInput->dyaw > 0)
 			{
 				if (!p->NotOnWater)
 				{
@@ -672,13 +672,13 @@ static float boatApplyTurn(player_struct *p, HIDInput* const hidInput, bool cons
 				if (hidInput->mouseturnx < 0)
 					turnvel -= Sgn(baseVel) * sqrtf(abs(baseVel) * -(hidInput->mouseturnx / factor) * (7.f / 20.f));
 
-				if (hidInput->dyaw < 0)
+				if (hidInput->dyaw > 0)
 					turnvel += baseVel * hidInput->dyaw;
 
 				updateTurnHeldAmt(factor);
 			}
 
-			if (kbdRight || p->moto_drink > 0 || hidInput->mouseturnx > 0 || hidInput->dyaw > 0)
+			if (kbdRight || p->moto_drink > 0 || hidInput->mouseturnx > 0 || hidInput->dyaw < 0)
 			{
 				if (!p->NotOnWater)
 				{
@@ -693,7 +693,7 @@ static float boatApplyTurn(player_struct *p, HIDInput* const hidInput, bool cons
 				if (hidInput->mouseturnx > 0)
 					turnvel += Sgn(baseVel) * sqrtf(abs(baseVel) * (hidInput->mouseturnx / factor) * (7.f / 20.f));
 
-				if (hidInput->dyaw > 0)
+				if (hidInput->dyaw < 0)
 					turnvel += baseVel * hidInput->dyaw;
 
 				updateTurnHeldAmt(factor);
@@ -739,8 +739,8 @@ static void processVehicleInput(player_struct *p, HIDInput* const hidInput, Inpu
 	// Cancel out micro-movement
 	if (fabs(hidInput->mouseturnx) < (m_sensitivity_x * m_yaw * backendinputscale() * 2.f)) hidInput->mouseturnx = 0;
 
-	p->vehTurnLeft = kbdLeft || hidInput->mouseturnx < 0 || hidInput->dyaw < 0;
-	p->vehTurnRight = kbdRight || hidInput->mouseturnx > 0 || hidInput->dyaw > 0;
+	p->vehTurnLeft = kbdLeft || hidInput->mouseturnx < 0 || hidInput->dyaw > 0;
+	p->vehTurnRight = kbdRight || hidInput->mouseturnx > 0 || hidInput->dyaw < 0;
 
 	if (p->OnBoat || !p->moto_underwater)
 	{