diff --git a/src/d_main.cpp b/src/d_main.cpp
index 9a2089954..133124a44 100644
--- a/src/d_main.cpp
+++ b/src/d_main.cpp
@@ -764,7 +764,7 @@ void D_Display ()
 			//
 
 			// Check for the presence of dynamic lights at the start of the frame once.
-			if (gl_lights)
+			if ((gl_lights && vid_rendermode == 4) || (r_dynlights && vid_rendermode != 4))
 			{
 				TThinkerIterator<ADynamicLight> it(STAT_DLIGHT);
 				level.HasDynamicLights = !!it.Next();
diff --git a/src/g_shared/a_dynlight.h b/src/g_shared/a_dynlight.h
index ae2493ca2..fa9d5840e 100644
--- a/src/g_shared/a_dynlight.h
+++ b/src/g_shared/a_dynlight.h
@@ -3,6 +3,7 @@
 #include "actor.h"
 #include "cycler.h"
 
+EXTERN_CVAR(Bool, r_dynlights)
 EXTERN_CVAR(Bool, gl_lights)
 EXTERN_CVAR(Bool, gl_attachedlights)
 
diff --git a/src/g_statusbar/sbarinfo.cpp b/src/g_statusbar/sbarinfo.cpp
index 7e7ace6a3..9c3c71017 100644
--- a/src/g_statusbar/sbarinfo.cpp
+++ b/src/g_statusbar/sbarinfo.cpp
@@ -1567,7 +1567,11 @@ DBaseStatusBar *CreateCustomStatusBar(int scriptno)
 	auto script = SBarInfoScript[scriptno];
 	if (script == nullptr) return nullptr;
 
-	auto sbar = (DBaseStatusBar*)PClass::FindClass("SBarInfoWrapper")->CreateNew();
+	PClass *sbarclass = PClass::FindClass("SBarInfoWrapper");
+	assert(sbarclass != nullptr);
+	assert(sbarclass->IsDescendantOf(RUNTIME_CLASS(DBaseStatusBar)));
+	auto sbar = (DBaseStatusBar*)sbarclass->CreateNew();
+
 	auto core = new DSBarInfo(sbar, script);
 	sbar->PointerVar<DSBarInfo>("core") = core;
 	sbar->SetSize(script->height, script->_resW, script->_resH);
diff --git a/src/g_statusbar/shared_sbar.cpp b/src/g_statusbar/shared_sbar.cpp
index e0e2cc9d5..7236bc39b 100644
--- a/src/g_statusbar/shared_sbar.cpp
+++ b/src/g_statusbar/shared_sbar.cpp
@@ -247,6 +247,31 @@ static void CreateBaseStatusBar()
 	StatusBar->SetSize(0);
 }
 
+static void CreateGameInfoStatusBar(bool &shouldWarn)
+{
+	auto cls = PClass::FindClass(gameinfo.statusbarclass);
+	if (cls == nullptr)
+	{
+		if (shouldWarn)
+		{
+			Printf(TEXTCOLOR_RED "Unknown status bar class \"%s\"\n", gameinfo.statusbarclass.GetChars());
+			shouldWarn = false;
+		}
+	}
+	else
+	{
+		if (cls->IsDescendantOf(RUNTIME_CLASS(DBaseStatusBar)))
+		{
+			StatusBar = (DBaseStatusBar *)cls->CreateNew();
+		}
+		else if (shouldWarn)
+		{
+			Printf(TEXTCOLOR_RED "Status bar class \"%s\" is not derived from BaseStatusBar\n", gameinfo.statusbarclass.GetChars());
+			shouldWarn = false;
+		}
+	}
+}
+
 void ST_CreateStatusBar(bool bTitleLevel)
 {
 	if (StatusBar != NULL)
@@ -255,6 +280,8 @@ void ST_CreateStatusBar(bool bTitleLevel)
 		StatusBar = NULL;
 	}
 
+	bool shouldWarn = true;
+
 	if (bTitleLevel)
 	{
 		CreateBaseStatusBar();
@@ -268,11 +295,7 @@ void ST_CreateStatusBar(bool bTitleLevel)
 		int sbarinfofile = Wads.GetLumpFile(sbarinfolump);
 		if (gameinfo.statusbarclassfile >= gameinfo.statusbarfile && gameinfo.statusbarclassfile >= sbarinfofile)
 		{
-			auto cls = PClass::FindClass(gameinfo.statusbarclass);
-			if (cls != nullptr)
-			{
-				StatusBar = (DBaseStatusBar *)cls->CreateNew();
-			}
+			CreateGameInfoStatusBar(shouldWarn);
 		}
 	}
 	if (StatusBar == nullptr && SBarInfoScript[SCRIPT_CUSTOM] != nullptr)
@@ -291,11 +314,7 @@ void ST_CreateStatusBar(bool bTitleLevel)
 		// SBARINFO failed so try the current statusbarclass again.
 		if (StatusBar == nullptr)
 		{
-			auto cls = PClass::FindClass(gameinfo.statusbarclass);
-			if (cls != nullptr)
-			{
-				StatusBar = (DBaseStatusBar *)cls->CreateNew();
-			}
+			CreateGameInfoStatusBar(shouldWarn);
 		}
 	}
 	if (StatusBar == nullptr)
@@ -311,6 +330,7 @@ void ST_CreateStatusBar(bool bTitleLevel)
 			auto cls = PClass::FindClass(defname);
 			if (cls != nullptr)
 			{
+				assert(cls->IsDescendantOf(RUNTIME_CLASS(DBaseStatusBar)));
 				StatusBar = (DBaseStatusBar *)cls->CreateNew();
 			}
 		}
diff --git a/src/gl/scene/gl_flats.cpp b/src/gl/scene/gl_flats.cpp
index d50a00f9c..e399037fa 100644
--- a/src/gl/scene/gl_flats.cpp
+++ b/src/gl/scene/gl_flats.cpp
@@ -55,7 +55,6 @@
 
 void FDrawInfo::SetupSubsectorLights(GLFlat *flat, int pass, subsector_t * sub, int *dli)
 {
-	if (isFullbrightScene()) return;
 	if (dli != NULL && *dli != -1)
 	{
 		gl_RenderState.ApplyLightIndex(GLRenderer->mLights->GetIndex(*dli));
@@ -84,7 +83,6 @@ void FDrawInfo::SetupSubsectorLights(GLFlat *flat, int pass, subsector_t * sub,
 
 void FDrawInfo::SetupSectorLights(GLFlat *flat, int pass, int *dli)
 {
-	if (isFullbrightScene()) return;
 	if (dli != NULL && *dli != -1)
 	{
 		gl_RenderState.ApplyLightIndex(GLRenderer->mLights->GetIndex(*dli));
@@ -303,6 +301,7 @@ void FDrawInfo::DrawFlat(GLFlat *flat, int pass, bool trans)	// trans only has m
 	int rel = getExtraLight();
 
 	auto &plane = flat->plane;
+    auto processLights = level.HasDynamicLights && !isFullbrightScene();
 	gl_RenderState.SetNormal(plane.plane.Normal().X, plane.plane.Normal().Z, plane.plane.Normal().Y);
 
 	switch (pass)
@@ -316,19 +315,19 @@ void FDrawInfo::DrawFlat(GLFlat *flat, int pass, bool trans)	// trans only has m
 		{
 			gl_RenderState.SetMaterial(flat->gltexture, CLAMP_NONE, 0, -1, false);
 			gl_RenderState.SetPlaneTextureRotation(&plane, flat->gltexture);
-			DrawSubsectors(flat, pass, (pass == GLPASS_ALL || flat->dynlightindex > -1), false);
+			DrawSubsectors(flat, pass, processLights && (gl.lightmethod == LM_DIRECT || flat->dynlightindex > -1), false);
 			gl_RenderState.EnableTextureMatrix(false);
 		}
 		else
 		{
 			gl_RenderState.SetMaterial(flat->gltexture, CLAMP_XY, 0, -1, false);
-			DrawSkyboxSector(flat, pass, (pass == GLPASS_ALL || flat->dynlightindex > -1));
+			DrawSkyboxSector(flat, pass, processLights && (gl.lightmethod == LM_DIRECT || flat->dynlightindex > -1));
 		}
 		gl_RenderState.SetObjectColor(0xffffffff);
 		break;
 
 	case GLPASS_LIGHTSONLY:
-		if (!trans || flat->gltexture)
+		if ((!trans || flat->gltexture) && processLights)
 		{
 			ProcessLights(flat, trans);
 		}
@@ -353,7 +352,7 @@ void FDrawInfo::DrawFlat(GLFlat *flat, int pass, bool trans)	// trans only has m
 			else gl_RenderState.AlphaFunc(GL_GEQUAL, 0.f);
 			gl_RenderState.SetMaterial(flat->gltexture, CLAMP_NONE, 0, -1, false);
 			gl_RenderState.SetPlaneTextureRotation(&plane, flat->gltexture);
-			DrawSubsectors(flat, pass, (gl.lightmethod == LM_DIRECT || flat->dynlightindex > -1), true);
+			DrawSubsectors(flat, pass, processLights && (gl.lightmethod == LM_DIRECT || flat->dynlightindex > -1), true);
 			gl_RenderState.EnableTextureMatrix(false);
 		}
 		if (flat->renderstyle==STYLE_Add) gl_RenderState.BlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
diff --git a/src/p_sight.cpp b/src/p_sight.cpp
index 1854b743b..d53343594 100644
--- a/src/p_sight.cpp
+++ b/src/p_sight.cpp
@@ -151,6 +151,7 @@ public:
 void SightCheck::P_SightOpening(SightOpening &open, const line_t *linedef, double x, double y)
 {
 	open.portalflags = 0;
+	open.bottom = open.top = 0;
 	sector_t *front = linedef->frontsector;
 	sector_t *back = linedef->backsector;
 
@@ -159,8 +160,10 @@ void SightCheck::P_SightOpening(SightOpening &open, const line_t *linedef, doubl
 		// single sided line
 		if (linedef->flags & ML_PORTALCONNECT)
 		{
-			if (!front->PortalBlocksSight(sector_t::ceiling)) open.portalflags |= SO_TOPFRONT;
-			if (!front->PortalBlocksSight(sector_t::floor)) open.portalflags |= SO_BOTTOMFRONT;
+			if (!front->PortalBlocksSight(sector_t::ceiling)) open.top = LINEOPEN_MAX, open.portalflags |= SO_TOPFRONT;
+			if (!front->PortalBlocksSight(sector_t::floor)) open.bottom = LINEOPEN_MIN, open.portalflags |= SO_BOTTOMFRONT;
+			if (open.top == 0) open.top = front->floorplane.ZatPoint(x, y);
+			if (open.bottom == 0) open.bottom = front->ceilingplane.ZatPoint(x, y);
 		}
 
 		open.range = 0;
@@ -213,7 +216,7 @@ bool SightCheck::PTR_SightTraverse (intercept_t *in)
 //
 
 	// ignore self referencing sectors if COMPAT_TRACE is on
-	if ((i_compatflags & COMPATF_TRACE) && li->frontsector == li->backsector) 
+	if ((i_compatflags & COMPATF_TRACE) && li->frontsector == li->backsector)
 		return true;
 
 	double trX = Trace.x + Trace.dx * in->frac;
@@ -224,7 +227,7 @@ bool SightCheck::PTR_SightTraverse (intercept_t *in)
 	{
 		// This may not skip P_SightOpening, but only reduce the open range to 0.
 		open.range = 0;
-		open.bottom = open.top;
+		if (open.bottom != LINEOPEN_MIN) open.bottom = open.top;
 	}
 
 	FLinePortal *lport = li->getPortal();
diff --git a/src/polyrenderer/scene/poly_model.cpp b/src/polyrenderer/scene/poly_model.cpp
index 4251589d9..a49212989 100644
--- a/src/polyrenderer/scene/poly_model.cpp
+++ b/src/polyrenderer/scene/poly_model.cpp
@@ -56,7 +56,7 @@ PolyModelRenderer::PolyModelRenderer(PolyRenderThread *thread, const Mat4f &worl
 
 void PolyModelRenderer::AddLights(AActor *actor)
 {
-	if (gl_lights && actor)
+	if (r_dynlights && actor)
 	{
 		auto &addedLights = Thread->AddedLightsArray;
 
diff --git a/src/polyrenderer/scene/poly_plane.cpp b/src/polyrenderer/scene/poly_plane.cpp
index 55a4c11d0..08a8897e7 100644
--- a/src/polyrenderer/scene/poly_plane.cpp
+++ b/src/polyrenderer/scene/poly_plane.cpp
@@ -269,6 +269,12 @@ void RenderPolyPlane::SetLightLevel(PolyRenderThread *thread, PolyDrawArgs &args
 
 void RenderPolyPlane::SetDynLights(PolyRenderThread *thread, PolyDrawArgs &args, subsector_t *sub, bool ceiling)
 {
+	if (!r_dynlights)
+	{
+		args.SetLights(nullptr, 0);
+		return;
+	}
+
 	FLightNode *light_list = sub->lighthead;
 
 	auto cameraLight = PolyCameraLight::Instance();
diff --git a/src/polyrenderer/scene/poly_wall.cpp b/src/polyrenderer/scene/poly_wall.cpp
index 02eb5e7b2..7aae2c32c 100644
--- a/src/polyrenderer/scene/poly_wall.cpp
+++ b/src/polyrenderer/scene/poly_wall.cpp
@@ -374,6 +374,12 @@ void RenderPolyWall::Render(PolyRenderThread *thread)
 
 void RenderPolyWall::SetDynLights(PolyRenderThread *thread, PolyDrawArgs &args)
 {
+	if (!r_dynlights)
+	{
+		args.SetLights(nullptr, 0);
+		return;
+	}
+
 	FLightNode *light_list = (LineSeg && LineSeg->sidedef) ? LineSeg->sidedef->lighthead : nullptr;
 
 	auto cameraLight = PolyCameraLight::Instance();
diff --git a/src/posix/cocoa/gl_sysfb.h b/src/posix/cocoa/gl_sysfb.h
index 39c8f8ab4..fc957a641 100644
--- a/src/posix/cocoa/gl_sysfb.h
+++ b/src/posix/cocoa/gl_sysfb.h
@@ -83,8 +83,6 @@ protected:
 	void SetFullscreenMode();
 	void SetWindowedMode();
 
-	void InitializeState();
-
 	void SwapBuffers();
 
 	void SetGammaTable(uint16_t* table);
diff --git a/src/posix/cocoa/i_input.mm b/src/posix/cocoa/i_input.mm
index 0c631713e..c3f6d4116 100644
--- a/src/posix/cocoa/i_input.mm
+++ b/src/posix/cocoa/i_input.mm
@@ -555,11 +555,13 @@ void ProcessKeyboardEvent(NSEvent* theEvent)
 		return;
 	}
 
+	const bool isARepeat = [theEvent isARepeat];
+
 	if (k_allowfullscreentoggle
 		&& (kVK_ANSI_F == keyCode)
 		&& (NSCommandKeyMask & [theEvent modifierFlags])
 		&& (NSKeyDown == [theEvent type])
-		&& ![theEvent isARepeat])
+		&& !isARepeat)
 	{
 		ToggleFullscreen = !ToggleFullscreen;
 		return;
@@ -569,7 +571,7 @@ void ProcessKeyboardEvent(NSEvent* theEvent)
 	{
 		ProcessKeyboardEventInMenu(theEvent);
 	}
-	else
+	else if (!isARepeat)
 	{
 		event_t event = {};
 
diff --git a/src/posix/cocoa/i_main.mm b/src/posix/cocoa/i_main.mm
index 665f2203a..e1b388d3d 100644
--- a/src/posix/cocoa/i_main.mm
+++ b/src/posix/cocoa/i_main.mm
@@ -152,6 +152,7 @@ static void I_DetectOS()
 		case 11: name = "OS X El Capitan";       break;
 		case 12: name = "macOS Sierra";          break;
 		case 13: name = "macOS High Sierra";     break;
+		case 14: name = "macOS Mojave";          break;
 	}
 
 	char release[16] = "unknown";
diff --git a/src/posix/cocoa/i_video.mm b/src/posix/cocoa/i_video.mm
index 9305e708f..f4f03f2df 100644
--- a/src/posix/cocoa/i_video.mm
+++ b/src/posix/cocoa/i_video.mm
@@ -319,6 +319,9 @@ NSOpenGLPixelFormat* CreatePixelFormat(const NSOpenGLPixelFormatAttribute profil
 // ---------------------------------------------------------------------------
 
 
+static SystemGLFrameBuffer* frameBuffer;
+
+
 SystemGLFrameBuffer::SystemGLFrameBuffer(void*, const bool fullscreen)
 : DFrameBuffer(vid_defwidth, vid_defheight)
 , m_window(CreateWindow(STYLE_MASK_WINDOWED))
@@ -383,6 +386,8 @@ SystemGLFrameBuffer::SystemGLFrameBuffer(void*, const bool fullscreen)
 		}
 	}
 
+	frameBuffer = this;
+
 	FConsoleWindow::GetInstance().Show(false);
 }
 
@@ -417,10 +422,6 @@ void SystemGLFrameBuffer::SetVSync(bool vsync)
 }
 
 
-void SystemGLFrameBuffer::InitializeState()
-{
-}
-
 void SystemGLFrameBuffer::SwapBuffers()
 {
 	[[NSOpenGLContext currentContext] flushBuffer];
@@ -532,24 +533,19 @@ void SystemGLFrameBuffer::SetMode(const bool fullscreen, const bool hiDPI)
 }
 
 
-static SystemGLFrameBuffer* GetSystemFrameBuffer()
-{
-	return static_cast<SystemGLFrameBuffer*>(screen);
-}
-
 void SystemGLFrameBuffer::UseHiDPI(const bool hiDPI)
 {
-	if (auto fb = GetSystemFrameBuffer())
+	if (frameBuffer != nullptr)
 	{
-		fb->SetMode(fb->m_fullscreen, hiDPI);
+		frameBuffer->SetMode(frameBuffer->m_fullscreen, hiDPI);
 	}
 }
 
 void SystemGLFrameBuffer::SetCursor(NSCursor* cursor)
 {
-	if (auto fb = GetSystemFrameBuffer())
+	if (frameBuffer != nullptr)
 	{
-		NSWindow*  const window = fb->m_window;
+		NSWindow*  const window = frameBuffer->m_window;
 		CocoaView* const view   = [window contentView];
 
 		[view setCursor:cursor];
@@ -559,15 +555,15 @@ void SystemGLFrameBuffer::SetCursor(NSCursor* cursor)
 
 void SystemGLFrameBuffer::SetWindowVisible(bool visible)
 {
-	if (auto fb = GetSystemFrameBuffer())
+	if (frameBuffer != nullptr)
 	{
 		if (visible)
 		{
-			[fb->m_window orderFront:nil];
+			[frameBuffer->m_window orderFront:nil];
 		}
 		else
 		{
-			[fb->m_window orderOut:nil];
+			[frameBuffer->m_window orderOut:nil];
 		}
 
 		I_SetNativeMouse(!visible);
@@ -576,11 +572,11 @@ void SystemGLFrameBuffer::SetWindowVisible(bool visible)
 
 void SystemGLFrameBuffer::SetWindowTitle(const char* title)
 {
-	if (auto fb = GetSystemFrameBuffer())
+	if (frameBuffer != nullptr)
 	{
 		NSString* const nsTitle = nullptr == title ? nil :
 			[NSString stringWithCString:title encoding:NSISOLatin1StringEncoding];
-		[fb->m_window setTitle:nsTitle];
+		[frameBuffer->m_window setTitle:nsTitle];
 	}
 }
 
diff --git a/src/posix/sdl/gl_sysfb.h b/src/posix/sdl/gl_sysfb.h
index 16f2171ce..6972dd449 100644
--- a/src/posix/sdl/gl_sysfb.h
+++ b/src/posix/sdl/gl_sysfb.h
@@ -32,7 +32,6 @@ public:
 protected:
 	void SetGammaTable(uint16_t *tbl);
 	void ResetGammaTable();
-	void InitializeState();
 
 	SystemGLFrameBuffer () {}
 	uint8_t GammaTable[3][256];
diff --git a/src/posix/sdl/hardware.cpp b/src/posix/sdl/hardware.cpp
index d82ed18b4..260149ff2 100644
--- a/src/posix/sdl/hardware.cpp
+++ b/src/posix/sdl/hardware.cpp
@@ -65,6 +65,10 @@ void I_ShutdownGraphics ()
 
 void I_InitGraphics ()
 {
+#ifdef __APPLE__
+	SDL_SetHint(SDL_HINT_VIDEO_MAC_FULLSCREEN_SPACES, "0");
+#endif // __APPLE__
+
 	if (SDL_InitSubSystem (SDL_INIT_VIDEO) < 0)
 	{
 		I_FatalError ("Could not initialize SDL video:\n%s\n", SDL_GetError());
diff --git a/src/posix/sdl/i_input.cpp b/src/posix/sdl/i_input.cpp
index 2c8160e68..82bdaab3f 100644
--- a/src/posix/sdl/i_input.cpp
+++ b/src/posix/sdl/i_input.cpp
@@ -62,8 +62,6 @@ EXTERN_CVAR (Bool, fullscreen)
 extern int WaitingForKey, chatmodeon;
 extern constate_e ConsoleState;
 
-static bool DownState[SDL_NUM_SCANCODES];
-
 static const SDL_Keycode DIKToKeySym[256] =
 {
 	0, SDLK_ESCAPE, SDLK_1, SDLK_2, SDLK_3, SDLK_4, SDLK_5, SDLK_6,
@@ -188,10 +186,6 @@ static void I_CheckGUICapture ()
 	if (wantCapt != GUICapture)
 	{
 		GUICapture = wantCapt;
-		if (wantCapt)
-		{
-			memset (DownState, 0, sizeof(DownState));
-		}
 		ResetButtonStates();
 	}
 }
@@ -393,6 +387,11 @@ void MessagePump (const SDL_Event &sev)
 	case SDL_KEYUP:
 		if (!GUICapture)
 		{
+			if (sev.key.repeat)
+			{
+				break;
+			}
+			
 			event.type = sev.type == SDL_KEYDOWN ? EV_KeyDown : EV_KeyUp;
 
 			// Try to look up our key mapped key for conversion to DirectInput.
@@ -422,17 +421,9 @@ void MessagePump (const SDL_Event &sev)
 				((kmod & KMOD_CTRL) ? GKM_CTRL : 0) |
 				((kmod & KMOD_ALT) ? GKM_ALT : 0);
 
-			if (event.subtype == EV_GUI_KeyDown)
+			if (event.subtype == EV_GUI_KeyDown && sev.key.repeat)
 			{
-				if (DownState[sev.key.keysym.scancode])
-				{
-					event.subtype = EV_GUI_KeyRepeat;
-				}
-				DownState[sev.key.keysym.scancode] = 1;
-			}
-			else
-			{
-				DownState[sev.key.keysym.scancode] = 0;
+				event.subtype = EV_GUI_KeyRepeat;
 			}
 
 			switch (sev.key.keysym.sym)
diff --git a/src/posix/sdl/sdlglvideo.cpp b/src/posix/sdl/sdlglvideo.cpp
index 42c7a7c20..34200520a 100644
--- a/src/posix/sdl/sdlglvideo.cpp
+++ b/src/posix/sdl/sdlglvideo.cpp
@@ -273,12 +273,6 @@ SystemGLFrameBuffer::~SystemGLFrameBuffer ()
 }
 
 
-
-
-void SystemGLFrameBuffer::InitializeState()
-{
-}
-
 void SystemGLFrameBuffer::SetGammaTable(uint16_t *tbl)
 {
 	if (m_supportsGamma)
diff --git a/src/resourcefiles/file_wad.cpp b/src/resourcefiles/file_wad.cpp
index c7a3a262f..a0ae033db 100644
--- a/src/resourcefiles/file_wad.cpp
+++ b/src/resourcefiles/file_wad.cpp
@@ -188,6 +188,17 @@ bool FWadFile::Open(bool quiet)
 		Lumps[i].Namespace = ns_global;
 		Lumps[i].Flags = Lumps[i].Compressed? LUMPF_COMPRESSED : 0;
 		Lumps[i].FullName = NULL;
+		
+		// Check if the lump is within the WAD file and print a warning if not.
+		if (Lumps[i].Position + Lumps[i].LumpSize > wadSize || Lumps[i].Position < 0 || Lumps[i].LumpSize < 0)
+		{
+			if (Lumps[i].LumpSize != 0)
+			{
+				Printf(PRINT_HIGH, "%s: Lump %s contains invalid positioning info and will be ignored\n", Filename, Lumps[i].Name);
+				Lumps[i].Name[0] = 0;
+			}
+			Lumps[i].LumpSize = Lumps[i].Position = 0;
+		}
 	}
 
 	delete[] fileinfo;
diff --git a/src/swrenderer/things/r_model.cpp b/src/swrenderer/things/r_model.cpp
index 0991d1d45..70995c32c 100644
--- a/src/swrenderer/things/r_model.cpp
+++ b/src/swrenderer/things/r_model.cpp
@@ -98,7 +98,7 @@ namespace swrenderer
 
 	void SWModelRenderer::AddLights(AActor *actor)
 	{
-		if (gl_lights && actor)
+		if (r_dynlights && actor)
 		{
 			auto &addedLights = Thread->AddedLightsArray;
 
diff --git a/wadsrc/static/compatibility.txt b/wadsrc/static/compatibility.txt
index f5ea9710d..621f2f9ad 100644
--- a/wadsrc/static/compatibility.txt
+++ b/wadsrc/static/compatibility.txt
@@ -59,6 +59,7 @@ F84AB4557464A383E93F37CD3A82AC48 // MM2 map03
 71C2E6D9CFA3D8750C6A9599FB2453BD // Hacx map03: There are some switches behind 
 96368EB950E33AF62EA6423434E3CEF7 // HacX map17: shootable covers in these levels
 BA530202AF0BA0C6CBAE6A0C7076FB72 // Requiem map04
+E2819F69CB79BA66E0ACBCD7DE652F9D // Hell to Pay MAP32: Exit switch pressable through lasers
 {
 	useblocking
 }
diff --git a/wadsrc/static/language.enu b/wadsrc/static/language.enu
index b73520259..0cb1e42fc 100644
--- a/wadsrc/static/language.enu
+++ b/wadsrc/static/language.enu
@@ -598,6 +598,27 @@ CC_SPIDER = "THE SPIDER MASTERMIND";
 CC_CYBER = "THE CYBERDEMON";
 CC_HERO = "OUR HERO";
 
+// Friendly names
+FN_ZOMBIE = "Zombieman";
+FN_SHOTGUN = "Sergeant";
+FN_HEAVY = "Chaingunner";
+FN_IMP = "Imp";
+FN_DEMON = "Demon";
+FN_SPECTRE = "Spectre";
+FN_LOST = "Lost Soul";
+FN_CACO = "Cacodemon";
+FN_HELL = "Hell Knight";
+FN_BARON = "Baron of Hell";
+FN_ARACH = "Arachnotron";
+FN_PAIN = "Pain Elemental";
+FN_REVEN = "Revenant";
+FN_MANCU = "Mancubus";
+FN_ARCH = "Arch-vile";
+FN_SPIDER = "Spider Mastermind";
+FN_CYBER = "Cyberdemon";
+FN_WOLFSS = "Nazi";
+FN_DOG = "Dog";
+
 // New strings from BOOM
 PD_BLUEC = "You need a blue card to open this door";
 PD_REDC = "You need a red card to open this door";
@@ -1300,6 +1321,20 @@ TXT_IMTIME = "TIME";
 
 RAVENQUITMSG = "ARE YOU SURE YOU WANT TO QUIT?";
 
+// Friendly names
+FN_CHICKEN = "Chicken";
+FN_BEAST = "Weredragon";
+FN_CLINK = "Sabreclaw";
+FN_DSPARIL = "D'Sparil";
+FN_HERETICIMP = "Gargoyle";
+FN_IRONLICH = "Ironlich";
+FN_BONEKNIGHT = "Undead Warrior";
+FN_MINOTAUR = "Maulotaur";
+FN_MUMMY = "Golem";
+FN_MUMMYLEADER = "Nitrogolem";
+FN_SNAKE = "Ophidian";
+FN_WIZARD = "Wizard";
+
 // Hexen strings
 
 // Mana
diff --git a/wadsrc/static/zscript/doom/arachnotron.txt b/wadsrc/static/zscript/doom/arachnotron.txt
index 36bb2b38e..35b9daf2a 100644
--- a/wadsrc/static/zscript/doom/arachnotron.txt
+++ b/wadsrc/static/zscript/doom/arachnotron.txt
@@ -21,6 +21,7 @@ class Arachnotron : Actor
 		DeathSound "baby/death";
 		ActiveSound "baby/active";
 		Obituary "$OB_BABY";
+		Tag "$FN_ARACH";
 	}
 	States
 	{
diff --git a/wadsrc/static/zscript/doom/archvile.txt b/wadsrc/static/zscript/doom/archvile.txt
index c6c3f53a8..4969c4553 100644
--- a/wadsrc/static/zscript/doom/archvile.txt
+++ b/wadsrc/static/zscript/doom/archvile.txt
@@ -25,6 +25,7 @@ class Archvile : Actor
 		ActiveSound "vile/active";
 		MeleeSound "vile/stop";
 		Obituary "$OB_VILE";
+		Tag "$FN_ARCH";
 	}
 	States
 	{
diff --git a/wadsrc/static/zscript/doom/bruiser.txt b/wadsrc/static/zscript/doom/bruiser.txt
index 234166669..1a8f97011 100644
--- a/wadsrc/static/zscript/doom/bruiser.txt
+++ b/wadsrc/static/zscript/doom/bruiser.txt
@@ -22,6 +22,7 @@ class BaronOfHell : Actor
 		ActiveSound "baron/active";
 		Obituary "$OB_BARON";
 		HitObituary "$OB_BARONHIT";
+		Tag "$FN_BARON";
 	}
 	States
 	{
@@ -72,6 +73,7 @@ class HellKnight : BaronOfHell
 		DeathSound "knight/death";
 		HitObituary "$OB_KNIGHTHIT";
 		Obituary "$OB_KNIGHT";
+		Tag "$FN_HELL";
 	}
 	States
 	{
diff --git a/wadsrc/static/zscript/doom/cacodemon.txt b/wadsrc/static/zscript/doom/cacodemon.txt
index bdd3a6bbd..da6b58b16 100644
--- a/wadsrc/static/zscript/doom/cacodemon.txt
+++ b/wadsrc/static/zscript/doom/cacodemon.txt
@@ -21,6 +21,7 @@ class Cacodemon : Actor
 		ActiveSound "caco/active";
 		Obituary "$OB_CACO";
 		HitObituary "$OB_CACOHIT";
+		Tag "$FN_CACO";
 	}
 	States
 	{
diff --git a/wadsrc/static/zscript/doom/cyberdemon.txt b/wadsrc/static/zscript/doom/cyberdemon.txt
index 1a2890f9a..61fd1d273 100644
--- a/wadsrc/static/zscript/doom/cyberdemon.txt
+++ b/wadsrc/static/zscript/doom/cyberdemon.txt
@@ -27,6 +27,7 @@ class Cyberdemon : Actor
 		DeathSound "cyber/death";
 		ActiveSound "cyber/active";
 		Obituary "$OB_CYBORG";
+		Tag "$FN_CYBER";
 	}
 	States
 	{
diff --git a/wadsrc/static/zscript/doom/demon.txt b/wadsrc/static/zscript/doom/demon.txt
index ab51adccd..b93621da6 100644
--- a/wadsrc/static/zscript/doom/demon.txt
+++ b/wadsrc/static/zscript/doom/demon.txt
@@ -21,6 +21,7 @@ class Demon : Actor
 		DeathSound "demon/death";
 		ActiveSound "demon/active";
 		Obituary "$OB_DEMONHIT";
+		Tag "$FN_DEMON";
 	}
 	States
 	{
@@ -71,6 +72,7 @@ class Spectre : Demon
 		DeathSound "spectre/death";
 		ActiveSound "spectre/active";
 		HitObituary "$OB_SPECTREHIT";
+		Tag "$FN_SPECTRE";
 	}
 }
 
diff --git a/wadsrc/static/zscript/doom/doomimp.txt b/wadsrc/static/zscript/doom/doomimp.txt
index 9a963c7d1..d690fffce 100644
--- a/wadsrc/static/zscript/doom/doomimp.txt
+++ b/wadsrc/static/zscript/doom/doomimp.txt
@@ -21,6 +21,7 @@ class DoomImp : Actor
 		ActiveSound "imp/active";
 		HitObituary "$OB_IMPHIT";
 		Obituary "$OB_IMP";
+		Tag "$FN_IMP";
 	}
 	States
 	{
diff --git a/wadsrc/static/zscript/doom/fatso.txt b/wadsrc/static/zscript/doom/fatso.txt
index 2e6321650..7d3c1197a 100644
--- a/wadsrc/static/zscript/doom/fatso.txt
+++ b/wadsrc/static/zscript/doom/fatso.txt
@@ -21,6 +21,7 @@ class Fatso : Actor
 		DeathSound "fatso/death";
 		ActiveSound "fatso/active";
 		Obituary "$OB_FATSO";
+		Tag "$FN_MANCU";
 	}
 	States
 	{
diff --git a/wadsrc/static/zscript/doom/lostsoul.txt b/wadsrc/static/zscript/doom/lostsoul.txt
index ce7f07f51..89086bf17 100644
--- a/wadsrc/static/zscript/doom/lostsoul.txt
+++ b/wadsrc/static/zscript/doom/lostsoul.txt
@@ -22,6 +22,7 @@ class LostSoul : Actor
 		ActiveSound "skull/active";
 		RenderStyle "SoulTrans";
 		Obituary "$OB_SKULL";
+		Tag "$FN_LOST";
 	}
 	States
 	{
diff --git a/wadsrc/static/zscript/doom/painelemental.txt b/wadsrc/static/zscript/doom/painelemental.txt
index fe9e0590a..f953e47ef 100644
--- a/wadsrc/static/zscript/doom/painelemental.txt
+++ b/wadsrc/static/zscript/doom/painelemental.txt
@@ -20,6 +20,7 @@ class PainElemental : Actor
 		PainSound "pain/pain";
 		DeathSound "pain/death";
 		ActiveSound "pain/active";
+		Tag "$FN_PAIN";
 	}
 	States
 	{
diff --git a/wadsrc/static/zscript/doom/possessed.txt b/wadsrc/static/zscript/doom/possessed.txt
index 8b6612076..51505c80b 100644
--- a/wadsrc/static/zscript/doom/possessed.txt
+++ b/wadsrc/static/zscript/doom/possessed.txt
@@ -21,6 +21,7 @@ class ZombieMan : Actor
 		DeathSound "grunt/death";
 		ActiveSound "grunt/active";
 		Obituary "$OB_ZOMBIE";
+		Tag "$FN_ZOMBIE";
 		DropItem "Clip";
 	}
 	States
@@ -84,6 +85,7 @@ class ShotgunGuy : Actor
 		DeathSound "shotguy/death";
 		ActiveSound "shotguy/active";
 		Obituary "$OB_SHOTGUY";
+		Tag "$FN_SHOTGUN";
 		DropItem "Shotgun";
 	}
 	States
@@ -147,6 +149,7 @@ class ChaingunGuy : Actor
 		ActiveSound "chainguy/active";
 		AttackSound "chainguy/attack";
 		Obituary "$OB_CHAINGUY";
+		Tag "$FN_HEAVY";
 		Dropitem "Chaingun";
 	}
 	States
@@ -209,6 +212,7 @@ class WolfensteinSS : Actor
 		ActiveSound "wolfss/active";
 		AttackSound "wolfss/attack";
 		Obituary "$OB_WOLFSS";
+		Tag "$FN_WOLFSS";
 		Dropitem "Clip";
 	}
 	States
diff --git a/wadsrc/static/zscript/doom/revenant.txt b/wadsrc/static/zscript/doom/revenant.txt
index 67b5d0b1d..91363edb8 100644
--- a/wadsrc/static/zscript/doom/revenant.txt
+++ b/wadsrc/static/zscript/doom/revenant.txt
@@ -24,6 +24,7 @@ class Revenant : Actor
 		MeleeSound "skeleton/melee";
 		HitObituary "$OB_UNDEADHIT";
 		Obituary "$OB_UNDEAD";
+		Tag "$FN_REVEN";
 	}
 	States
 	{
diff --git a/wadsrc/static/zscript/doom/spidermaster.txt b/wadsrc/static/zscript/doom/spidermaster.txt
index 5e1a39d76..c6aaa9cfd 100644
--- a/wadsrc/static/zscript/doom/spidermaster.txt
+++ b/wadsrc/static/zscript/doom/spidermaster.txt
@@ -26,6 +26,7 @@ class SpiderMastermind : Actor
 		DeathSound "spider/death";
 		ActiveSound "spider/active";
 		Obituary "$OB_SPIDER";
+		Tag "$FN_SPIDER";
 	}
 	States
 	{
diff --git a/wadsrc/static/zscript/heretic/beast.txt b/wadsrc/static/zscript/heretic/beast.txt
index e5f30d25b..a27bb70bd 100644
--- a/wadsrc/static/zscript/heretic/beast.txt
+++ b/wadsrc/static/zscript/heretic/beast.txt
@@ -19,6 +19,7 @@ class Beast : Actor
 		DeathSound "beast/death";
 		ActiveSound "beast/active";
 		Obituary "$OB_BEAST";
+		Tag "$FN_BEAST";
 		DropItem "CrossbowAmmo", 84, 10;
 	}
 	States
diff --git a/wadsrc/static/zscript/heretic/chicken.txt b/wadsrc/static/zscript/heretic/chicken.txt
index b60a89136..38b76894e 100644
--- a/wadsrc/static/zscript/heretic/chicken.txt
+++ b/wadsrc/static/zscript/heretic/chicken.txt
@@ -256,6 +256,7 @@ class Chicken : MorphedMonster
 		DeathSound "chicken/death";
 		ActiveSound "chicken/active";
 		Obituary "$OB_CHICKEN";
+		Tag "$FN_CHICKEN";
 	}
 	States
 	{
diff --git a/wadsrc/static/zscript/heretic/clink.txt b/wadsrc/static/zscript/heretic/clink.txt
index 7549ff097..5dc1aa39d 100644
--- a/wadsrc/static/zscript/heretic/clink.txt
+++ b/wadsrc/static/zscript/heretic/clink.txt
@@ -17,6 +17,7 @@ class Clink : Actor
 		DeathSound "clink/death";
 		ActiveSound "clink/active";
 		Obituary "$OB_CLINK";
+		Tag "$FN_CLINK";
 		DropItem "SkullRodAmmo", 84, 20;
 	}
 	States
diff --git a/wadsrc/static/zscript/heretic/dsparil.txt b/wadsrc/static/zscript/heretic/dsparil.txt
index fc4ade00e..c8c78bb8e 100644
--- a/wadsrc/static/zscript/heretic/dsparil.txt
+++ b/wadsrc/static/zscript/heretic/dsparil.txt
@@ -36,6 +36,7 @@ class Sorcerer1 : Actor
 		ActiveSound "dsparilserpent/active";
 		Obituary "$OB_DSPARIL1";
 		HitObituary "$OB_DSPARIL1HIT";
+		Tag "$FN_DSPARIL";
 	}
 
 
@@ -237,6 +238,7 @@ class Sorcerer2 : Actor
 		ActiveSound "dsparil/active";
 		Obituary "$OB_DSPARIL2";
 		HitObituary "$OB_DSPARIL2HIT";
+		Tag "$FN_DSPARIL";
 	}
 
 
diff --git a/wadsrc/static/zscript/heretic/hereticimp.txt b/wadsrc/static/zscript/heretic/hereticimp.txt
index 11430712a..3a938b4ed 100644
--- a/wadsrc/static/zscript/heretic/hereticimp.txt
+++ b/wadsrc/static/zscript/heretic/hereticimp.txt
@@ -26,6 +26,7 @@ class HereticImp : Actor
 		ActiveSound "himp/active";
 		Obituary "$OB_HERETICIMP";
 		HitObituary "$OB_HERETICIMPHIT";
+		Tag "$FN_HERETICIMP";
 	}
 	
 	States
diff --git a/wadsrc/static/zscript/heretic/ironlich.txt b/wadsrc/static/zscript/heretic/ironlich.txt
index db0985e6d..cf64a6aec 100644
--- a/wadsrc/static/zscript/heretic/ironlich.txt
+++ b/wadsrc/static/zscript/heretic/ironlich.txt
@@ -23,6 +23,7 @@ class Ironlich : Actor
 		ActiveSound "ironlich/active";
 		Obituary "$OB_IRONLICH";
 		HitObituary "$OB_IRONLICHHIT";
+		Tag "$FN_IRONLICH";
 		DropItem "BlasterAmmo", 84, 10;
 		DropItem "ArtiEgg", 51, 0;
 	}
diff --git a/wadsrc/static/zscript/heretic/knight.txt b/wadsrc/static/zscript/heretic/knight.txt
index ada592ccf..1bc71d6af 100644
--- a/wadsrc/static/zscript/heretic/knight.txt
+++ b/wadsrc/static/zscript/heretic/knight.txt
@@ -20,6 +20,7 @@ class Knight : Actor
 		ActiveSound "hknight/active";
 		Obituary "$OB_BONEKNIGHT";
 		HitObituary "$OB_BONEKNIGHTHIT";
+		Tag "$FN_BONEKNIGHT";
 		DropItem "CrossbowAmmo", 84, 5;
 	}
 	
diff --git a/wadsrc/static/zscript/heretic/mummy.txt b/wadsrc/static/zscript/heretic/mummy.txt
index 5ccedc9e4..928439ecc 100644
--- a/wadsrc/static/zscript/heretic/mummy.txt
+++ b/wadsrc/static/zscript/heretic/mummy.txt
@@ -19,6 +19,7 @@ class Mummy : Actor
 		DeathSound "mummy/death";
 		ActiveSound "mummy/active";
 		HitObituary "$OB_MUMMY";
+		Tag "$FN_MUMMY";
 		DropItem "GoldWandAmmo", 84, 3;
 	}
 	States
@@ -60,6 +61,7 @@ class MummyLeader : Mummy
 		Health 100;
 		Painchance 64;
 		Obituary "$OB_MUMMYLEADER";
+		Tag "$FN_MUMMYLEADER";
 	}
 	States
 	{
diff --git a/wadsrc/static/zscript/heretic/snake.txt b/wadsrc/static/zscript/heretic/snake.txt
index e2f5b381f..6f741e93d 100644
--- a/wadsrc/static/zscript/heretic/snake.txt
+++ b/wadsrc/static/zscript/heretic/snake.txt
@@ -16,6 +16,7 @@ class Snake : Actor
 		DeathSound "snake/death";
 		ActiveSound "snake/active";
 		Obituary "$OB_SNAKE";
+		Tag "$FN_SNAKE";
 		DropItem "PhoenixRodAmmo", 84, 5;
 	}
 	States
diff --git a/wadsrc/static/zscript/heretic/wizard.txt b/wadsrc/static/zscript/heretic/wizard.txt
index d799e5721..ae12e5838 100644
--- a/wadsrc/static/zscript/heretic/wizard.txt
+++ b/wadsrc/static/zscript/heretic/wizard.txt
@@ -22,6 +22,7 @@ class Wizard : Actor
 		ActiveSound "wizard/active";
 		Obituary "$OB_WIZARD";
 		HitObituary "$OB_WIZARDHIT";
+		Tag "$FN_WIZARD";
 		DropItem "BlasterAmmo", 84, 10;
 		DropItem "ArtiTomeOfPower", 4, 0;
 	}
diff --git a/wadsrc/static/zscript/level_compatibility.txt b/wadsrc/static/zscript/level_compatibility.txt
index ddd308a75..d91f1b19b 100644
--- a/wadsrc/static/zscript/level_compatibility.txt
+++ b/wadsrc/static/zscript/level_compatibility.txt
@@ -401,6 +401,26 @@ class LevelCompatibility play
 				}
 				break;
 			}
+			
+			case '915409A89746D6BFD92C7956BE6A0A2D': // Doom II: BFG Edition MAP33
+			{
+				// Missing textures on sector with a Super Shotgun at map start.
+				TextureID rock2 = TexMan.CheckForTexture("ROCK2", TexMan.Type_Wall);
+				for(int i=0; i<4; i++)
+				{
+					SetWallTextureID(567+i, Line.front, Side.bottom, ROCK2);
+					SetWallTextureID(567+i, Line.back, Side.top, ROCK2);
+				}
+				// Tags the linedefs on the teleporter at the end of the level so that
+				// it's possible to leave the room near the yellow keycard door.
+				for(int i=0; i<2; i++)
+				{
+					SetLineSpecial(400+i, Teleport, 0, 36);
+					SetLineSpecial(559+i, Teleport, 0, 36);
+				}
+				break;
+			}
+
 			case 'ABC4EB5A1535ECCD0061AD14F3547908': // Plutonia Experiment, map26
 			{
 				SetSectorSpecial(156, 0);
@@ -702,6 +722,47 @@ class LevelCompatibility play
 				GetDefaultActor('WolfensteinSS').bActivateMCross = true;
 				break;
 			}
+			
+			case 'D67CECE3F60083383DF992B8C824E4AC': // Icarus: Alien Vanuguard MAP13
+			{
+				// Moves sector special to platform with Berserk powerup. The
+				// map's only secret can now be scored.
+				SetSectorSpecial(119, 0);
+				SetSectorSpecial(122, 1024);
+				break;
+			}
+			
+			case '61373587339A768854E2912CC99A4781': // Icarus: Alien Vanuguard MAP15
+			{
+				// Can press use on the lift to reveal the secret Shotgun,
+				// making 100% secrets possible.
+				SetLineSpecial(222, Plat_DownWaitUpStayLip, 11, 64, 105, 0);
+				SetLineActivation(222, SPAC_Use);
+				SetLineFlags(222, Line.ML_REPEAT_SPECIAL);
+				break;
+			}
+			
+			case '9F66B0797925A09D4DC0725540F8EEF7': // Icarus: Alien Vanuguard MAP16
+			{
+				// Can press use on the walls at the secret Rocket Launcher in
+				// case of getting stuck.
+				for(int i=0; i<7; i++)
+				{
+					SetLineSpecial(703+i, Plat_DownWaitUpStayLip, 14, 64, 105, 0);
+					SetLineActivation(703+i, SPAC_Use);
+					SetLineFlags(703+i, Line.ML_REPEAT_SPECIAL);
+				}
+				break;
+			}
+			
+			case '09645D198010BF634EF0DE3EFCB0052C': // Flashback to Hell MAP12
+			{
+				// Can press use behind bookshelf in case of getting stuck.
+				SetLineSpecial(4884, Plat_DownWaitUpStayLip, 15, 32, 105, 0);
+				SetLineActivation(4884, SPAC_UseBack);
+				SetLineFlags(4884, Line.ML_REPEAT_SPECIAL);
+				break;
+			}
 		}
 	}
 
diff --git a/wadsrc/static/zscript/raven/minotaur.txt b/wadsrc/static/zscript/raven/minotaur.txt
index 1738bc3f6..5a85ac877 100644
--- a/wadsrc/static/zscript/raven/minotaur.txt
+++ b/wadsrc/static/zscript/raven/minotaur.txt
@@ -30,6 +30,7 @@ class Minotaur : Actor
 		DropItem "PhoenixRodAmmo", 84, 10;
 		Obituary "$OB_MINOTAUR";
 		HitObituary "$OB_MINOTAURHIT";
+		Tag "$FN_MINOTAUR";
 	}
 
 	States
diff --git a/wadsrc/static/zscript/shared/dog.txt b/wadsrc/static/zscript/shared/dog.txt
index 663dd6b98..a623344c7 100644
--- a/wadsrc/static/zscript/shared/dog.txt
+++ b/wadsrc/static/zscript/shared/dog.txt
@@ -16,6 +16,7 @@ class MBFHelperDog : Actor
 		PainSound "dog/pain";
 		SeeSound "dog/sight";
 		Obituary "$OB_DOG";
+		Tag "$FN_DOG";
 	}
 	States
 	{