diff --git a/Build/Compilers/acc.exe b/Build/Compilers/acc.exe
index d9f2585c..7437a6e8 100644
Binary files a/Build/Compilers/acc.exe and b/Build/Compilers/acc.exe differ
diff --git a/Build/Compilers/common.acs b/Build/Compilers/common.acs
new file mode 100644
index 00000000..8b9a0829
--- /dev/null
+++ b/Build/Compilers/common.acs
@@ -0,0 +1,10 @@
+
+//**************************************************************************
+//**
+//** common.acs
+//**
+//**************************************************************************
+
+#include "specials.acs"
+#include "defs.acs"
+#include "wvars.acs"
diff --git a/Build/Compilers/defs.acs b/Build/Compilers/defs.acs
new file mode 100644
index 00000000..0e630a12
--- /dev/null
+++ b/Build/Compilers/defs.acs
@@ -0,0 +1,149 @@
+
+//**************************************************************************
+//**
+//** defs.acs
+//**
+//**************************************************************************
+
+#define TRUE	1
+#define FALSE	0
+#define ON		1
+#define OFF		0
+#define YES		1
+#define NO		0
+
+#define LINE_FRONT	0
+#define LINE_BACK	1
+
+#define SIDE_FRONT	0
+#define SIDE_BACK	1
+
+#define TEXTURE_TOP			0
+#define TEXTURE_MIDDLE		1
+#define TEXTURE_BOTTOM		2
+
+#define GAME_SINGLE_PLAYER		0
+#define GAME_NET_COOPERATIVE	1
+#define GAME_NET_DEATHMATCH		2
+
+#define CLASS_FIGHTER		0
+#define CLASS_CLERIC		1
+#define CLASS_MAGE			2
+
+#define SKILL_VERY_EASY		0
+#define SKILL_EASY			1
+#define SKILL_NORMAL		2
+#define SKILL_HARD			3
+#define SKILL_VERY_HARD		4
+
+#define T_NONE					0
+#define T_CENTAUR				1
+#define T_CENTAURLEADER			2
+#define T_DEMON					3
+#define T_ETTIN					4
+#define T_FIREGARGOYLE			5
+#define T_WATERLURKER			6
+#define T_WATERLURKERLEADER		7
+#define T_WRAITH				8
+#define T_WRAITHBURIED			9
+#define T_FIREBALL1				10
+#define T_MANA1					11
+#define T_MANA2					12
+#define T_ITEMBOOTS				13
+#define T_ITEMEGG				14
+#define T_ITEMFLIGHT			15
+#define T_ITEMSUMMON			16
+#define T_ITEMTPORTOTHER		17
+#define T_ITEMTELEPORT			18
+#define T_BISHOP				19
+#define T_ICEGOLEM				20
+#define T_BRIDGE				21
+#define T_DRAGONSKINBRACERS		22
+#define T_ITEMHEALTHPOTION		23
+#define T_ITEMHEALTHFLASK		24
+#define T_ITEMHEALTHFULL		25
+#define T_ITEMBOOSTMANA			26
+#define T_FIGHTERAXE			27
+#define T_FIGHTERHAMMER			28
+#define T_FIGHTERSWORD1			29
+#define T_FIGHTERSWORD2			30
+#define T_FIGHTERSWORD3			31
+#define T_CLERICSTAFF			32
+#define T_CLERICHOLY1			33
+#define T_CLERICHOLY2			34
+#define T_CLERICHOLY3			35
+#define T_MAGESHARDS			36
+#define T_MAGESTAFF1			37
+#define T_MAGESTAFF2			38
+#define T_MAGESTAFF3			39
+#define T_MORPHBLAST			40
+#define T_ROCK1					41
+#define T_ROCK2					42
+#define T_ROCK3					43
+#define T_DIRT1					44
+#define T_DIRT2					45
+#define T_DIRT3					46
+#define T_DIRT4					47
+#define T_DIRT5					48
+#define T_DIRT6					49
+#define T_ARROW					50
+#define T_DART					51
+#define T_POISONDART			52
+#define T_RIPPERBALL			53
+#define T_STAINEDGLASS1			54
+#define T_STAINEDGLASS2			55
+#define T_STAINEDGLASS3			56
+#define T_STAINEDGLASS4			57
+#define T_STAINEDGLASS5			58
+#define T_STAINEDGLASS6			59
+#define T_STAINEDGLASS7			60
+#define T_STAINEDGLASS8			61
+#define T_STAINEDGLASS9			62
+#define T_STAINEDGLASS0			63
+#define T_BLADE					64
+#define T_ICESHARD				65
+#define T_FLAME_SMALL			66
+#define T_FLAME_LARGE			67
+#define T_MESHARMOR				68
+#define T_FALCONSHIELD			69
+#define T_PLATINUMHELM			70
+#define T_AMULETOFWARDING		71
+#define T_ITEMFLECHETTE			72
+#define T_ITEMTORCH				73
+#define T_ITEMREPULSION			74
+#define T_MANA3					75
+#define T_PUZZSKULL				76
+#define T_PUZZGEMBIG			77
+#define T_PUZZGEMRED			78
+#define T_PUZZGEMGREEN1			79
+#define T_PUZZGEMGREEN2			80
+#define T_PUZZGEMBLUE1			81
+#define T_PUZZGEMBLUE2			82
+#define T_PUZZBOOK1				83
+#define T_PUZZBOOK2				84
+#define T_METALKEY				85
+#define T_SMALLMETALKEY			86
+#define T_AXEKEY				87
+#define T_FIREKEY				88
+#define T_GREENKEY				89
+#define T_MACEKEY				90
+#define T_SILVERKEY				91
+#define T_RUSTYKEY				92
+#define T_HORNKEY				93
+#define T_SERPENTKEY			94
+#define T_WATERDRIP				95
+#define T_TEMPSMALLFLAME		96
+#define T_PERMSMALLFLAME		97
+#define T_TEMPLARGEFLAME		98
+#define T_PERMLARGEFLAME		99
+#define T_DEMON_MASH			100
+#define T_DEMON2_MASH			101
+#define T_ETTIN_MASH			102
+#define T_CENTAUR_MASH			103
+#define T_THRUSTSPIKEUP			104
+#define T_THRUSTSPIKEDOWN		105
+#define T_FLESH_DRIP1			106
+#define T_FLESH_DRIP2			107
+#define T_SPARK_DRIP			108
+			
+
diff --git a/Build/Compilers/specials.acs b/Build/Compilers/specials.acs
new file mode 100644
index 00000000..91f346e8
--- /dev/null
+++ b/Build/Compilers/specials.acs
@@ -0,0 +1,84 @@
+//**************************************************************************
+//**
+//** specials.acs
+//**
+//**************************************************************************
+
+special
+	80:ACS_Execute(5),
+	81:ACS_Suspend(2),
+	82:ACS_Terminate(2),
+	83:ACS_LockedExecute(5),
+	42:Ceiling_CrushAndRaise(3),
+	44:Ceiling_CrushStop(1),
+	43:Ceiling_LowerAndCrush(3),
+	40:Ceiling_LowerByValue(3),
+	41:Ceiling_RaiseByValue(3),
+	45:Ceiling_CrushRaiseAndStay(3),
+	69:Ceiling_MoveToValueTimes8(4),
+	10:Door_Close(2),
+	11:Door_Open(2),
+	12:Door_Raise(3),
+	13:Door_LockedRaise(4),
+	20:Floor_LowerByValue(3),
+	36:Floor_LowerByValueTimes8(3),
+	66:Floor_LowerInstant(3),
+	68:Floor_MoveToValueTimes8(4),
+	21:Floor_LowerToLowest(2),
+	22:Floor_LowerToNearest(2),
+	28:Floor_RaiseAndCrush(3),
+	23:Floor_RaiseByValue(3),
+	35:Floor_RaiseByValueTimes8(3),
+	67:Floor_RaiseInstant(3),
+	24:Floor_RaiseToHighest(2),
+	25:Floor_RaiseToNearest(2),
+	95:FloorAndCeiling_LowerByValue(3),
+	96:FloorAndCeiling_RaiseByValue(3),
+	46:Floor_CrushStop(1),
+	109:Light_ForceLightning(1),
+	110:Light_RaiseByValue(2),
+	111:Light_LowerByValue(2),
+	112:Light_ChangeToValue(2),
+	113:Light_Fade(3),
+	114:Light_Glow(4),
+	115:Light_Flicker(3),
+	116:Light_Strobe(5),
+	29:Pillar_Build(3),
+	94:Pillar_BuildAndCrush(4),
+	30:Pillar_Open(4),
+	62:Plat_DownWaitUpStay(3),
+	63:Plat_DownByValue(4),
+	64:Plat_UpWaitDownStay(3),
+	65:Plat_UpByValue(4),
+	60:Plat_PerpetualRaise(3),
+	61:Plat_Stop(1),
+	6:Polyobj_MoveTimes8(4),
+	4:Polyobj_Move(4),
+	2:Polyobj_RotateLeft(3),
+	3:Polyobj_RotateRight(3),
+	7:Polyobj_DoorSwing(4),
+	8:Polyobj_DoorSlide(5),
+	93:Polyobj_OR_MoveTimes8(4),
+	92:Polyobj_OR_Move(4),
+	90:Polyobj_OR_RotateLeft(3),
+	91:Polyobj_OR_RotateRight(3),
+	120:Radius_Quake(5),
+	140:Sector_ChangeSound(2),
+	26:Stairs_BuildDown(5),
+	27:Stairs_BuildUp(5),
+	31:Stairs_BuildDownSync(4),
+	32:Stairs_BuildUpSync(4),
+	70:Teleport(1),
+	71:Teleport_NoFog(1),
+	74:Teleport_NewMap(2),
+	72:ThrustThing(2),
+	73:DamageThing(1),
+	130:Thing_Activate(1),
+	131:Thing_Deactivate(1),
+	133:Thing_Destroy(1),
+	134:Thing_Projectile(5),
+	136:Thing_ProjectileGravity(5),
+	132:Thing_Remove(1),
+	135:Thing_Spawn(3),
+	137:Thing_SpawnNoFog(3),
+	138:Floor_Waggle(5);
diff --git a/Build/Compilers/wvars.acs b/Build/Compilers/wvars.acs
new file mode 100644
index 00000000..252b4a17
--- /dev/null
+++ b/Build/Compilers/wvars.acs
@@ -0,0 +1,13 @@
+
+//**************************************************************************
+//**
+//** wvars.acs
+//**
+//**************************************************************************
+
+/*
+world int 0:WorldFree1;
+world int 1:WorldFree2;
+world int 2:WorldFree3;
+world int 3:WorldFree4;
+*/
diff --git a/Build/Compilers/zacc.exe b/Build/Compilers/zacc.exe
new file mode 100644
index 00000000..d9f2585c
Binary files /dev/null and b/Build/Compilers/zacc.exe differ