diff --git a/debian/docs b/debian/docs
index f3d4ef20e..b43bf86b5 100644
--- a/debian/docs
+++ b/debian/docs
@@ -1,2 +1 @@
-readme.txt
-readme.txt
+README.md
diff --git a/src/Makefile b/src/Makefile
index ce4b569ee..493796820 100644
--- a/src/Makefile
+++ b/src/Makefile
@@ -179,6 +179,9 @@ endif
 
 ifdef LINUX
 UNIXCOMMON=1
+ifndef NOGME
+HAVE_LIBGME=1
+endif
 endif
 
 ifdef SOLARIS
@@ -315,6 +318,13 @@ LIBS+=$(PNG_LDFLAGS)
 CFLAGS+=$(PNG_CFLAGS)
 endif
 
+ZLIB_PKGCONFIG?=zlib
+ZLIB_CFLAGS?=$(shell $(PKG_CONFIG) $(ZLIB_PKGCONFIG) --cflags)
+ZLIB_LDFLAGS?=$(shell $(PKG_CONFIG) $(ZLIB_PKGCONFIG) --libs)
+
+LIBS+=$(ZLIB_LDFLAGS)
+CFLAGS+=$(ZLIB_CFLAGS)
+
 ifdef HAVE_LIBGME
 OPTS+=-DHAVE_LIBGME
 
diff --git a/src/lua_hook.h b/src/lua_hook.h
index fd3130271..7192a2979 100644
--- a/src/lua_hook.h
+++ b/src/lua_hook.h
@@ -62,7 +62,7 @@ UINT8 LUAh_MobjCollideHook(mobj_t *thing1, mobj_t *thing2, enum hook which);
 #define LUAh_MobjMoveCollide(thing1, thing2) LUAh_MobjCollideHook(thing1, thing2, hook_MobjMoveCollide) // Hook for PIT_CheckThing by (tmthing) mobj type
 boolean LUAh_TouchSpecial(mobj_t *special, mobj_t *toucher); // Hook for P_TouchSpecialThing by mobj type
 #define LUAh_MobjFuse(mo) LUAh_MobjHook(mo, hook_MobjFuse) // Hook for mobj->fuse == 0 by mobj type
-#define LUAh_MobjThinker(mo) LUAh_MobjHook(mo, hook_MobjThinker) // Hook for P_MobjThinker or P_SceneryThinker by mobj type
+boolean LUAh_MobjThinker(mobj_t *mo); // Hook for P_MobjThinker or P_SceneryThinker by mobj type
 #define LUAh_BossThinker(mo) LUAh_MobjHook(mo, hook_BossThinker) // Hook for P_GenericBossThinker by mobj type
 UINT8 LUAh_ShouldDamage(mobj_t *target, mobj_t *inflictor, mobj_t *source, INT32 damage, UINT8 damagetype); // Hook for P_DamageMobj by mobj type (Should mobj take damage?)
 boolean LUAh_MobjDamage(mobj_t *target, mobj_t *inflictor, mobj_t *source, INT32 damage, UINT8 damagetype); // Hook for P_DamageMobj by mobj type (Mobj actually takes damage!)
diff --git a/src/lua_hooklib.c b/src/lua_hooklib.c
index a1a34803c..f7ea25224 100644
--- a/src/lua_hooklib.c
+++ b/src/lua_hooklib.c
@@ -76,12 +76,30 @@ typedef struct hook_s* hook_p;
 
 #define FMT_HOOKID "hook_%d"
 
+// For each mobj type, a linked list to its thinker and collision hooks.
+// That way, we don't have to iterate through all the hooks.
+// We could do that with all other mobj hooks, but it would probably just be
+// a waste of memory since they are only called occasionally. Probably...
+static hook_p mobjthinkerhooks[NUMMOBJTYPES];
+static hook_p mobjcollidehooks[NUMMOBJTYPES];
+
+// For each mobj type, a linked list for other mobj hooks
+static hook_p mobjhooks[NUMMOBJTYPES];
+
+// A linked list for player hooks
+static hook_p playerhooks;
+
+// A linked list for linedef executor hooks
+static hook_p linedefexecutorhooks;
+
+// For other hooks, a unique linked list
 hook_p roothook;
 
 // Takes hook, function, and additional arguments (mobj type to act on, etc.)
 static int lib_addHook(lua_State *L)
 {
 	static struct hook_s hook = {NULL, 0, 0, {0}, false};
+	static UINT32 nextid;
 	hook_p hookp, *lastp;
 
 	hook.type = luaL_checkoption(L, 1, NULL, hookNames);
@@ -111,6 +129,7 @@ static int lib_addHook(lua_State *L)
 		hook.s.mt = MT_NULL;
 		if (lua_isnumber(L, 2))
 			hook.s.mt = lua_tonumber(L, 2);
+		luaL_argcheck(L, hook.s.mt < NUMMOBJTYPES, 2, "invalid mobjtype_t");
 		break;
 	case hook_BotAI:
 		hook.s.skinname = NULL;
@@ -143,18 +162,49 @@ static int lib_addHook(lua_State *L)
 
 	hooksAvailable[hook.type/8] |= 1<<(hook.type%8);
 
-	// iterate the hook metadata structs
 	// set hook.id to the highest id + 1
-	// set lastp to the last hook struct's "next" pointer.
-	lastp = &roothook;
-	hook.id = 0;
-	for (hookp = roothook; hookp; hookp = hookp->next)
+	hook.id = nextid++;
+
+	// Special cases for some hook types (see the comments above mobjthinkerhooks declaration)
+	switch(hook.type)
 	{
-		if (hookp->id >= hook.id)
-			hook.id = hookp->id+1;
-		lastp = &hookp->next;
+	case hook_MobjThinker:
+		lastp = &mobjthinkerhooks[hook.s.mt];
+		break;
+	case hook_MobjCollide:
+	case hook_MobjMoveCollide:
+		lastp = &mobjcollidehooks[hook.s.mt];
+		break;
+	case hook_MobjSpawn:
+	case hook_TouchSpecial:
+	case hook_MobjFuse:
+	case hook_BossThinker:
+	case hook_ShouldDamage:
+	case hook_MobjDamage:
+	case hook_MobjDeath:
+	case hook_BossDeath:
+	case hook_MobjRemoved:
+		lastp = &mobjhooks[hook.s.mt];
+		break;
+	case hook_JumpSpecial:
+	case hook_AbilitySpecial:
+	case hook_SpinSpecial:
+	case hook_JumpSpinSpecial:
+	case hook_PlayerSpawn:
+		lastp = &playerhooks;
+		break;
+	case hook_LinedefExecute:
+		lastp = &linedefexecutorhooks;
+		break;
+	default:
+		lastp = &roothook;
+		break;
 	}
 
+	// iterate the hook metadata structs
+	// set lastp to the last hook struct's "next" pointer.
+	for (hookp = *lastp; hookp; hookp = hookp->next)
+		lastp = &hookp->next;
 	// allocate a permanent memory struct to stuff hook.
 	hookp = ZZ_Alloc(sizeof(struct hook_s));
 	memcpy(hookp, &hook, sizeof(struct hook_s));
@@ -185,9 +235,29 @@ boolean LUAh_MobjHook(mobj_t *mo, enum hook which)
 
 	lua_settop(gL, 0);
 
-	for (hookp = roothook; hookp; hookp = hookp->next)
-		if (hookp->type == which
-		&& (hookp->s.mt == MT_NULL || hookp->s.mt == mo->type))
+	// Look for all generic mobj hooks
+	for (hookp = mobjhooks[MT_NULL]; hookp; hookp = hookp->next)
+		if (hookp->type == which)
+		{
+			if (lua_gettop(gL) == 0)
+				LUA_PushUserdata(gL, mo, META_MOBJ);
+			lua_pushfstring(gL, FMT_HOOKID, hookp->id);
+			lua_gettable(gL, LUA_REGISTRYINDEX);
+			lua_pushvalue(gL, -2);
+			if (lua_pcall(gL, 1, 1, 0)) {
+				if (!hookp->error || cv_debug & DBG_LUA)
+					CONS_Alert(CONS_WARNING,"%s\n",lua_tostring(gL, -1));
+				lua_pop(gL, 1);
+				hookp->error = true;
+				continue;
+			}
+			if (lua_toboolean(gL, -1))
+				hooked = true;
+			lua_pop(gL, 1);
+		}
+
+	for (hookp = mobjhooks[mo->type]; hookp; hookp = hookp->next)
+		if (hookp->type == which)
 		{
 			if (lua_gettop(gL) == 0)
 				LUA_PushUserdata(gL, mo, META_MOBJ);
@@ -219,7 +289,7 @@ boolean LUAh_PlayerHook(player_t *plr, enum hook which)
 
 	lua_settop(gL, 0);
 
-	for (hookp = roothook; hookp; hookp = hookp->next)
+	for (hookp = playerhooks; hookp; hookp = hookp->next)
 		if (hookp->type == which)
 		{
 			if (lua_gettop(gL) == 0)
@@ -340,9 +410,38 @@ UINT8 LUAh_MobjCollideHook(mobj_t *thing1, mobj_t *thing2, enum hook which)
 
 	lua_settop(gL, 0);
 
-	for (hookp = roothook; hookp; hookp = hookp->next)
-		if (hookp->type == which
-		&& (hookp->s.mt == MT_NULL || hookp->s.mt == thing1->type))
+	// Look for all generic mobj collision hooks
+	for (hookp = mobjcollidehooks[MT_NULL]; hookp; hookp = hookp->next)
+		if (hookp->type == which)
+		{
+			if (lua_gettop(gL) == 0)
+			{
+				LUA_PushUserdata(gL, thing1, META_MOBJ);
+				LUA_PushUserdata(gL, thing2, META_MOBJ);
+			}
+			lua_pushfstring(gL, FMT_HOOKID, hookp->id);
+			lua_gettable(gL, LUA_REGISTRYINDEX);
+			lua_pushvalue(gL, -3);
+			lua_pushvalue(gL, -3);
+			if (lua_pcall(gL, 2, 1, 0)) {
+				if (!hookp->error || cv_debug & DBG_LUA)
+					CONS_Alert(CONS_WARNING,"%s\n",lua_tostring(gL, -1));
+				lua_pop(gL, 1);
+				hookp->error = true;
+				continue;
+			}
+			if (!lua_isnil(gL, -1))
+			{ // if nil, leave shouldCollide = 0.
+				if (lua_toboolean(gL, -1))
+					shouldCollide = 1; // Force yes
+				else
+					shouldCollide = 2; // Force no
+			}
+			lua_pop(gL, 1);
+		}
+
+	for (hookp = mobjcollidehooks[thing1->type]; hookp; hookp = hookp->next)
+		if (hookp->type == which)
 		{
 			if (lua_gettop(gL) == 0)
 			{
@@ -374,6 +473,59 @@ UINT8 LUAh_MobjCollideHook(mobj_t *thing1, mobj_t *thing2, enum hook which)
 	return shouldCollide;
 }
 
+// Hook for mobj thinkers
+boolean LUAh_MobjThinker(mobj_t *mo)
+{
+	hook_p hookp;
+	boolean hooked = false;
+	if (!gL || !(hooksAvailable[hook_MobjThinker/8] & (1<<(hook_MobjThinker%8))))
+		return false;
+
+	lua_settop(gL, 0);
+
+	// Look for all generic mobj thinker hooks
+	for (hookp = mobjthinkerhooks[MT_NULL]; hookp; hookp = hookp->next)
+	{
+		if (lua_gettop(gL) == 0)
+			LUA_PushUserdata(gL, mo, META_MOBJ);
+		lua_pushfstring(gL, FMT_HOOKID, hookp->id);
+		lua_gettable(gL, LUA_REGISTRYINDEX);
+		lua_pushvalue(gL, -2);
+		if (lua_pcall(gL, 1, 1, 0)) {
+			if (!hookp->error || cv_debug & DBG_LUA)
+				CONS_Alert(CONS_WARNING,"%s\n",lua_tostring(gL, -1));
+			lua_pop(gL, 1);
+			hookp->error = true;
+			continue;
+		}
+		if (lua_toboolean(gL, -1))
+			hooked = true;
+		lua_pop(gL, 1);
+	}
+
+	for (hookp = mobjthinkerhooks[mo->type]; hookp; hookp = hookp->next)
+	{
+		if (lua_gettop(gL) == 0)
+			LUA_PushUserdata(gL, mo, META_MOBJ);
+		lua_pushfstring(gL, FMT_HOOKID, hookp->id);
+		lua_gettable(gL, LUA_REGISTRYINDEX);
+		lua_pushvalue(gL, -2);
+		if (lua_pcall(gL, 1, 1, 0)) {
+			if (!hookp->error || cv_debug & DBG_LUA)
+				CONS_Alert(CONS_WARNING,"%s\n",lua_tostring(gL, -1));
+			lua_pop(gL, 1);
+			hookp->error = true;
+			continue;
+		}
+		if (lua_toboolean(gL, -1))
+			hooked = true;
+		lua_pop(gL, 1);
+	}
+
+	lua_settop(gL, 0);
+	return hooked;
+}
+
 // Hook for P_TouchSpecialThing by mobj type
 boolean LUAh_TouchSpecial(mobj_t *special, mobj_t *toucher)
 {
@@ -384,9 +536,33 @@ boolean LUAh_TouchSpecial(mobj_t *special, mobj_t *toucher)
 
 	lua_settop(gL, 0);
 
-	for (hookp = roothook; hookp; hookp = hookp->next)
-		if (hookp->type == hook_TouchSpecial
-		&& (hookp->s.mt == MT_NULL || hookp->s.mt == special->type))
+	// Look for all generic touch special hooks
+	for (hookp = mobjhooks[MT_NULL]; hookp; hookp = hookp->next)
+		if (hookp->type == hook_TouchSpecial)
+		{
+			if (lua_gettop(gL) == 0)
+			{
+				LUA_PushUserdata(gL, special, META_MOBJ);
+				LUA_PushUserdata(gL, toucher, META_MOBJ);
+			}
+			lua_pushfstring(gL, FMT_HOOKID, hookp->id);
+			lua_gettable(gL, LUA_REGISTRYINDEX);
+			lua_pushvalue(gL, -3);
+			lua_pushvalue(gL, -3);
+			if (lua_pcall(gL, 2, 1, 0)) {
+				if (!hookp->error || cv_debug & DBG_LUA)
+					CONS_Alert(CONS_WARNING,"%s\n",lua_tostring(gL, -1));
+				lua_pop(gL, 1);
+				hookp->error = true;
+				continue;
+			}
+			if (lua_toboolean(gL, -1))
+				hooked = true;
+			lua_pop(gL, 1);
+		}
+
+	for (hookp = mobjhooks[special->type]; hookp; hookp = hookp->next)
+		if (hookp->type == hook_TouchSpecial)
 		{
 			if (lua_gettop(gL) == 0)
 			{
@@ -423,9 +599,42 @@ UINT8 LUAh_ShouldDamage(mobj_t *target, mobj_t *inflictor, mobj_t *source, INT32
 
 	lua_settop(gL, 0);
 
-	for (hookp = roothook; hookp; hookp = hookp->next)
-		if (hookp->type == hook_ShouldDamage
-		&& (hookp->s.mt == MT_NULL || hookp->s.mt == target->type))
+	// Look for all generic should damage hooks
+	for (hookp = mobjhooks[MT_NULL]; hookp; hookp = hookp->next)
+		if (hookp->type == hook_ShouldDamage)
+		{
+			if (lua_gettop(gL) == 0)
+			{
+				LUA_PushUserdata(gL, target, META_MOBJ);
+				LUA_PushUserdata(gL, inflictor, META_MOBJ);
+				LUA_PushUserdata(gL, source, META_MOBJ);
+				lua_pushinteger(gL, damage);
+			}
+			lua_pushfstring(gL, FMT_HOOKID, hookp->id);
+			lua_gettable(gL, LUA_REGISTRYINDEX);
+			lua_pushvalue(gL, -5);
+			lua_pushvalue(gL, -5);
+			lua_pushvalue(gL, -5);
+			lua_pushvalue(gL, -5);
+			if (lua_pcall(gL, 4, 1, 0)) {
+				if (!hookp->error || cv_debug & DBG_LUA)
+					CONS_Alert(CONS_WARNING,"%s\n",lua_tostring(gL, -1));
+				lua_pop(gL, 1);
+				hookp->error = true;
+				continue;
+			}
+			if (!lua_isnil(gL, -1))
+			{
+				if (lua_toboolean(gL, -1))
+					shouldDamage = 1; // Force yes
+				else
+					shouldDamage = 2; // Force no
+			}
+			lua_pop(gL, 1);
+		}
+
+	for (hookp = mobjhooks[target->type]; hookp; hookp = hookp->next)
+		if (hookp->type == hook_ShouldDamage)
 		{
 			if (lua_gettop(gL) == 0)
 			{
@@ -473,9 +682,37 @@ boolean LUAh_MobjDamage(mobj_t *target, mobj_t *inflictor, mobj_t *source, INT32
 
 	lua_settop(gL, 0);
 
-	for (hookp = roothook; hookp; hookp = hookp->next)
-		if (hookp->type == hook_MobjDamage
-		&& (hookp->s.mt == MT_NULL || hookp->s.mt == target->type))
+	// Look for all generic mobj damage hooks
+	for (hookp = mobjhooks[MT_NULL]; hookp; hookp = hookp->next)
+		if (hookp->type == hook_MobjDamage)
+		{
+			if (lua_gettop(gL) == 0)
+			{
+				LUA_PushUserdata(gL, target, META_MOBJ);
+				LUA_PushUserdata(gL, inflictor, META_MOBJ);
+				LUA_PushUserdata(gL, source, META_MOBJ);
+				lua_pushinteger(gL, damage);
+			}
+			lua_pushfstring(gL, FMT_HOOKID, hookp->id);
+			lua_gettable(gL, LUA_REGISTRYINDEX);
+			lua_pushvalue(gL, -5);
+			lua_pushvalue(gL, -5);
+			lua_pushvalue(gL, -5);
+			lua_pushvalue(gL, -5);
+			if (lua_pcall(gL, 4, 1, 0)) {
+				if (!hookp->error || cv_debug & DBG_LUA)
+					CONS_Alert(CONS_WARNING,"%s\n",lua_tostring(gL, -1));
+				lua_pop(gL, 1);
+				hookp->error = true;
+				continue;
+			}
+			if (lua_toboolean(gL, -1))
+				hooked = true;
+			lua_pop(gL, 1);
+		}
+
+	for (hookp = mobjhooks[target->type]; hookp; hookp = hookp->next)
+		if (hookp->type == hook_MobjDamage)
 		{
 			if (lua_gettop(gL) == 0)
 			{
@@ -518,9 +755,35 @@ boolean LUAh_MobjDeath(mobj_t *target, mobj_t *inflictor, mobj_t *source, UINT8
 
 	lua_settop(gL, 0);
 
-	for (hookp = roothook; hookp; hookp = hookp->next)
-		if (hookp->type == hook_MobjDeath
-		&& (hookp->s.mt == MT_NULL || hookp->s.mt == target->type))
+	// Look for all generic mobj death hooks
+	for (hookp = mobjhooks[MT_NULL]; hookp; hookp = hookp->next)
+		if (hookp->type == hook_MobjDeath)
+		{
+			if (lua_gettop(gL) == 0)
+			{
+				LUA_PushUserdata(gL, target, META_MOBJ);
+				LUA_PushUserdata(gL, inflictor, META_MOBJ);
+				LUA_PushUserdata(gL, source, META_MOBJ);
+			}
+			lua_pushfstring(gL, FMT_HOOKID, hookp->id);
+			lua_gettable(gL, LUA_REGISTRYINDEX);
+			lua_pushvalue(gL, -4);
+			lua_pushvalue(gL, -4);
+			lua_pushvalue(gL, -4);
+			if (lua_pcall(gL, 3, 1, 0)) {
+				if (!hookp->error || cv_debug & DBG_LUA)
+					CONS_Alert(CONS_WARNING,"%s\n",lua_tostring(gL, -1));
+				lua_pop(gL, 1);
+				hookp->error = true;
+				continue;
+			}
+			if (lua_toboolean(gL, -1))
+				hooked = true;
+			lua_pop(gL, 1);
+		}
+
+	for (hookp = mobjhooks[target->type]; hookp; hookp = hookp->next)
+		if (hookp->type == hook_MobjDeath)
 		{
 			if (lua_gettop(gL) == 0)
 			{
@@ -660,9 +923,8 @@ boolean LUAh_LinedefExecute(line_t *line, mobj_t *mo, sector_t *sector)
 
 	lua_settop(gL, 0);
 
-	for (hookp = roothook; hookp; hookp = hookp->next)
-		if (hookp->type == hook_LinedefExecute
-		&& !strcmp(hookp->s.funcname, line->text))
+	for (hookp = linedefexecutorhooks; hookp; hookp = hookp->next)
+		if (!strcmp(hookp->s.funcname, line->text))
 		{
 			if (lua_gettop(gL) == 0)
 			{
diff --git a/src/win32/Makefile.cfg b/src/win32/Makefile.cfg
index f309f7db1..99b8bc9b2 100644
--- a/src/win32/Makefile.cfg
+++ b/src/win32/Makefile.cfg
@@ -85,13 +85,21 @@ endif
 	OBJS=$(OBJDIR)/dx_error.o $(OBJDIR)/fabdxlib.o $(OBJDIR)/win_vid.o $(OBJDIR)/win_dll.o
 endif
 
+
+ZLIB_CFLAGS?=-I../libs/zlib
+ifdef MINGW64
+ZLIB_LDFLAGS?=-L../libs/zlib/win32 -lz64
+else
+ZLIB_LDFLAGS?=-L../libs/zlib/win32 -lz32
+endif
+
 ifndef NOPNG
 ifndef PNG_CONFIG
-	PNG_CFLAGS?=-I../libs/libpng-src -I../libs/zlib
+	PNG_CFLAGS?=-I../libs/libpng-src
 ifdef MINGW64
-	PNG_LDFLAGS?=-L../libs/libpng-src/projects -lpng64 -L../libs/zlib/win32 -lz64
+	PNG_LDFLAGS?=-L../libs/libpng-src/projects -lpng64
 else
-	PNG_LDFLAGS?=-L../libs/libpng-src/projects -lpng32 -L../libs/zlib/win32 -lz32
+	PNG_LDFLAGS?=-L../libs/libpng-src/projects -lpng32
 endif #MINGW64
 endif #PNG_CONFIG
 endif #NOPNG