diff --git a/baystation12.dme b/baystation12.dme
index d5d6d411620..d8248340b5e 100644
--- a/baystation12.dme
+++ b/baystation12.dme
@@ -1411,6 +1411,12 @@
 #include "code\modules\mob\new_player\preferences_setup.dm"
 #include "code\modules\mob\new_player\skill.dm"
 #include "code\modules\mob\new_player\sprite_accessories.dm"
+#include "code\modules\multiz\_stubs.dm"
+#include "code\modules\multiz\basic.dm"
+#include "code\modules\multiz\movement.dm"
+#include "code\modules\multiz\pipes.dm"
+#include "code\modules\multiz\structures.dm"
+#include "code\modules\multiz\turf.dm"
 #include "code\modules\nano\_JSON.dm"
 #include "code\modules\nano\JSON Reader.dm"
 #include "code\modules\nano\JSON Writer.dm"
@@ -1785,13 +1791,6 @@
 #include "code\modules\virus2\items_devices.dm"
 #include "code\modules\xgm\xgm_gas_data.dm"
 #include "code\modules\xgm\xgm_gas_mixture.dm"
-#include "code\TriDimension\controller.dm"
-#include "code\TriDimension\controller_presets.dm"
-#include "code\TriDimension\Movement.dm"
-#include "code\TriDimension\Pipes.dm"
-#include "code\TriDimension\Structures.dm"
-#include "code\TriDimension\Structures_presets.dm"
-#include "code\TriDimension\Turfs.dm"
 #include "code\ZAS\_docs.dm"
 #include "code\ZAS\Airflow.dm"
 #include "code\ZAS\Atom.dm"
diff --git a/code/TriDimension/Movement.dm b/code/TriDimension/Movement.dm
deleted file mode 100644
index 3637184d31a..00000000000
--- a/code/TriDimension/Movement.dm
+++ /dev/null
@@ -1,52 +0,0 @@
-/obj/item/weapon/tank/jetpack/verb/moveup()
-	set name = "Move Upwards"
-	set category = "Object"
-	if(allow_thrust(0.01, usr))
-		var/turf/controllerlocation = locate(1, 1, usr.z)
-		var/legal = 0
-		for(var/obj/effect/landmark/zcontroller/controller in controllerlocation)
-			legal = controller.up
-			if (controller.up)
-				var/turf/T = locate(usr.x, usr.y, controller.up_target)
-				if(T && (istype(T, /turf/space) || istype(T, /turf/simulated/floor/open)))
-					var/blocked = 0
-					for(var/atom/A in T.contents)
-						if(A.density)
-							blocked = 1
-							usr << "<span class='warning'>You bump into \the [A].</span>"
-							break
-					if(!blocked)
-						usr.Move(T)
-						usr << "You move upwards."
-				else
-					usr << "<span class='warning'>There is something in your way.</span>"
-		if (legal == 0)
-			usr << "There is nothing of interest in this direction."
-	return 1
-
-/obj/item/weapon/tank/jetpack/verb/movedown()
-	set name = "Move Downwards"
-	set category = "Object"
-	if(allow_thrust(0.01, usr))
-		var/turf/controllerlocation = locate(1, 1, usr.z)
-		var/legal = 0
-		for(var/obj/effect/landmark/zcontroller/controller in controllerlocation)
-			legal = controller.down
-			if (controller.down == 1)
-				var/turf/T = locate(usr.x, usr.y, controller.down_target)
-				var/turf/S = locate(usr.x, usr.y, usr.z)
-				if(T && (istype(S, /turf/space) || istype(S, /turf/simulated/floor/open)))
-					var/blocked = 0
-					for(var/atom/A in T.contents)
-						if(A.density)
-							blocked = 1
-							usr << "<span class='warning'>You bump into \the [A].</span>"
-							break
-					if(!blocked)
-						usr.Move(T)
-						usr << "You move downwards."
-				else
-					usr << "<span class='warning'>You cant move through the floor.</span>"
-		if (legal == 0)
-			usr << "There is nothing of interest in this direction."
-	return 1
diff --git a/code/TriDimension/Structures.dm b/code/TriDimension/Structures.dm
deleted file mode 100644
index 99151936f5f..00000000000
--- a/code/TriDimension/Structures.dm
+++ /dev/null
@@ -1,274 +0,0 @@
-///////////////////////////////////////
-//Contents: Ladders, Hatches, Stairs.//
-///////////////////////////////////////
-
-/obj/multiz
-	icon = 'icons/obj/structures.dmi'
-	density = 0
-	opacity = 0
-	anchored = 1
-
-	CanPass(obj/mover, turf/source, height, airflow)
-		return airflow || !density
-
-/obj/multiz/ladder
-	icon_state = "ladderdown"
-	name = "ladder"
-	desc = "A ladder.  You climb up and down it."
-
-	var/d_state = 1
-	var/obj/multiz/target
-
-	New()
-		. = ..()
-
-	proc/connect()
-		if(icon_state == "ladderdown") // the upper will connect to the lower
-			d_state = 1
-			var/turf/controllerlocation = locate(1, 1, z)
-			for(var/obj/effect/landmark/zcontroller/controller in controllerlocation)
-				if(controller.down)
-					var/turf/below = locate(src.x, src.y, controller.down_target)
-					for(var/obj/multiz/ladder/L in below)
-						if(L.icon_state == "ladderup")
-							target = L
-							L.target = src
-							d_state = 0
-							break
-		return
-
-/*	ex_act(severity)
-		switch(severity)
-			if(1.0)
-				if(icon_state == "ladderup" && prob(10))
-					qdel(src)
-			if(2.0)
-				if(prob(50))
-					qdel(src)
-			if(3.0)
-				qdel(src)
-		return*/
-
-	Destroy()
-		spawn(1)
-			if(target && icon_state == "ladderdown")
-				qdel(target)
-		return ..()
-
-	attackby(obj/item/C as obj, mob/user as mob)
-		(..)
-
-// construction commented out for balance concerns
-/*		if (!target && istype(C, /obj/item/stack/rods))
-			var/turf/controllerlocation = locate(1, 1, z)
-			var/found = 0
-			var/obj/item/stack/rods/S = C
-			if(S.amount < 2)
-				user << "You dont have enough rods to finish the ladder."
-				return
-			for(var/obj/effect/landmark/zcontroller/controller in controllerlocation)
-				if(controller.down)
-					found = 1
-					var/turf/below = locate(src.x, src.y, controller.down_target)
-					var/blocked = 0
-					for(var/atom/A in below.contents)
-						if(A.density)
-							blocked = 1
-							break
-					if(!blocked && !istype(below, /turf/simulated/wall))
-						var/obj/multiz/ladder/X = new /obj/multiz/ladder(below)
-						S.amount = S.amount - 2
-						if(S.amount == 0) qdel(S)
-						X.icon_state = "ladderup"
-						connect()
-						user << "You finish the ladder."
-					else
-						user << "The area below is blocked."
-			if(!found)
-				user << "You cant build a ladder down there."
-			return
-
-		else if  (icon_state == "ladderdown" && d_state == 0 && istype(C, /obj/item/weapon/wrench))
-			user << "<span class='notice'>You start loosening the anchoring bolts which secure the ladder to the frame.</span>"
-			playsound(src.loc, 'sound/items/Ratchet.ogg', 100, 1)
-
-			sleep(30)
-			if(!user || !C)	return
-
-			src.d_state = 1
-			if(target)
-				var/obj/item/stack/rods/R = PoolOrNew(/obj/item/stack/rods, target.loc)
-				R.amount = 2
-				qdel(Target)
-
-				user << "<span class='notice'>You remove the bolts anchoring the ladder.</span>"
-			return
-
-		else if  (icon_state == "ladderdown" && d_state == 1 && istype(C, /obj/item/weapon/weldingtool) )
-			var/obj/item/weapon/weldingtool/WT = C
-			if( WT.remove_fuel(0,user) )
-
-				user << "<span class='notice'>You begin to remove the ladder.</span>"
-				playsound(src.loc, 'sound/items/Welder.ogg', 100, 1)
-
-				sleep(60)
-				if(!user || !WT || !WT.isOn())	return
-
-				var/obj/item/stack/material/steel/S = new /obj/item/stack/material/steel( src )
-				S.amount = 2
-				user << "<span class='notice'>You remove the ladder and close the hole.</span>"
-				qdel(src)
-			else
-				user << "<span class='notice'>You need more welding fuel to complete this task.</span>"
-			return
-
-		else
-			src.attack_hand(user)
-			return*/
-		src.attack_hand(user)
-		return
-
-	attack_hand(var/mob/M)
-		if(!target || !istype(target.loc, /turf))
-			M << "The ladder is incomplete and can't be climbed."
-		else
-			var/turf/T = target.loc
-			var/blocked = 0
-			for(var/atom/A in T.contents)
-				if(A.density)
-					blocked = 1
-					break
-			if(blocked || istype(T, /turf/simulated/wall))
-				M << "Something is blocking the ladder."
-			else
-				M.visible_message("<span class='notice'>\The [M] climbs [src.icon_state == "ladderup" ? "up" : "down"] \the [src]!</span>", "You climb [src.icon_state == "ladderup"  ? "up" : "down"] \the [src]!", "You hear some grunting, and clanging of a metal ladder being used.")
-				M.Move(target.loc)
-
-/*	hatch
-		icon_state = "hatchdown"
-		name = "hatch"
-		desc = "A hatch. You climb down it, and it will automatically seal against pressure loss behind you."
-		top_icon_state = "hatchdown"
-		var/top_icon_state_open = "hatchdown-open"
-		var/top_icon_state_close = "hatchdown-close"
-
-		bottom_icon_state = "ladderup"
-
-		var/image/green_overlay
-		var/image/red_overlay
-
-		var/active = 0
-
-		New()
-			. = ..()
-			red_overlay = image(icon, "red-ladderlight")
-			green_overlay = image(icon, "green-ladderlight")
-
-		attack_hand(var/mob/M)
-
-			if(!target || !istype(target.loc, /turf))
-				qdel(src)
-
-			if(active)
-				M << "That [src] is being used."
-				return // It is a tiny airlock, only one at a time.
-
-			active = 1
-			var/obj/multiz/ladder/hatch/top_hatch = target
-			var/obj/multiz/ladder/hatch/bottom_hatch = src
-			if(icon_state == top_icon_state)
-				top_hatch = src
-				bottom_hatch = target
-
-			flick(top_icon_state_open, top_hatch)
-			bottom_hatch.overlays += green_overlay
-
-			spawn(7)
-				if(!target || !istype(target.loc, /turf))
-					qdel(src)
-				if(M.z == z && get_dist(src,M) <= 1)
-					var/list/adjacent_to_me = global_adjacent_z_levels["[z]"]
-					M.visible_message("<span class='notice'>\The [M] scurries [target.z == adjacent_to_me["up"] ? "up" : "down"] \the [src]!</span>", "You scramble [target.z == adjacent_to_me["up"] ? "up" : "down"] \the [src]!", "You hear some grunting, and a hatch sealing.")
-					M.Move(target.loc)
-				flick(top_icon_state_close,top_hatch)
-				bottom_hatch.overlays -= green_overlay
-				bottom_hatch.overlays += red_overlay
-
-				spawn(7)
-					top_hatch.icon_state = top_icon_state
-					bottom_hatch.overlays -= red_overlay
-					active = 0*/
-
-/obj/multiz/stairs
-	name = "Stairs"
-	desc = "Stairs.  You walk up and down them."
-	icon_state = "rampbottom"
-	var/obj/multiz/stairs/connected
-	var/turf/target
-	var/turf/target2
-	var/suggest_dir // try this dir first when finding stairs; this is the direction to walk *down* the stairs
-
-	New()
-		..()
-		var/turf/cl= locate(1, 1, src.z)
-		for(var/obj/effect/landmark/zcontroller/c in cl)
-			if(c.up)
-				var/turf/O = locate(src.x, src.y, c.up_target)
-				if(istype(O, /turf/space))
-					O.ChangeTurf(/turf/simulated/floor/open)
-
-		spawn(1)
-			var/turf/T
-			if(suggest_dir)
-				T = get_step(src.loc,suggest_dir)
-				find_stair_connection(T, suggest_dir, 1)
-			if(!target)
-				for(var/dir in cardinal)
-					T = get_step(src.loc,dir)
-					find_stair_connection(T, dir)
-					if(target)
-						break
-
-	Bumped(var/atom/movable/M)
-		if(connected && target && istype(src, /obj/multiz/stairs) && locate(/obj/multiz/stairs) in M.loc)
-			var/obj/multiz/stairs/Con = locate(/obj/multiz/stairs) in M.loc
-			if(Con == src.connected) //make sure the atom enters from the approriate lower stairs tile
-				M.Move(target)
-		return
-
-	proc/find_stair_connection(var/turf/T, var/dir, var/suggested=0)
-		for(var/obj/multiz/stairs/S in T)
-			if(S && S.icon_state == "rampbottom" && !S.connected)
-				if(!S.suggest_dir || S.suggest_dir == dir) // it doesn't have a suggested direction, or it's the same direction as we're trying, so we connect to it
-					initialise_stair_connection(src, S, dir)
-				else if(!suggested) // we're trying directions, so it could be a reverse stair (i.e. we're the bottom stair rather than the top)
-					var/inv_dir = 0
-					switch(dir)
-						if(1)
-							inv_dir = 2
-						if(2)
-							inv_dir = 1
-						if(4)
-							inv_dir = 8
-						if(8)
-							inv_dir = 4
-					if(S.suggest_dir == inv_dir)
-						initialise_stair_connection(S, src, inv_dir)
-
-	proc/initialise_stair_connection(var/obj/multiz/stairs/top, var/obj/multiz/stairs/bottom, var/dir)
-		top.set_dir(dir)
-		bottom.set_dir(dir)
-		top.connected = bottom
-		bottom.connected = top
-		top.icon_state = "ramptop"
-		top.density = 1
-		var/turf/controllerlocation = locate(1, 1, top.z)
-		for(var/obj/effect/landmark/zcontroller/controller in controllerlocation)
-			if(controller.up)
-				var/turf/above = locate(top.x, top.y, controller.up_target)
-				if(istype(above,/turf/space) || istype(above,/turf/simulated/floor/open))
-					top.target = above
-				var/turf/above2 = locate(bottom.x, bottom.y, controller.up_target)
-				if(istype(above2, /turf/space) || istype(above,/turf/simulated/floor/open))
-					top.target2 = above2
-		return
diff --git a/code/TriDimension/Structures_presets.dm b/code/TriDimension/Structures_presets.dm
deleted file mode 100644
index 7a28efe2112..00000000000
--- a/code/TriDimension/Structures_presets.dm
+++ /dev/null
@@ -1,11 +0,0 @@
-/obj/multiz/stairs/north_up
-	suggest_dir = SOUTH
-
-/obj/multiz/stairs/south_up
-	suggest_dir = NORTH
-
-/obj/multiz/stairs/east_up
-	suggest_dir = WEST
-
-/obj/multiz/stairs/west_up
-	suggest_dir = EAST
\ No newline at end of file
diff --git a/code/TriDimension/Turfs.dm b/code/TriDimension/Turfs.dm
deleted file mode 100644
index c601e36b992..00000000000
--- a/code/TriDimension/Turfs.dm
+++ /dev/null
@@ -1,128 +0,0 @@
-/turf/simulated/floor/open
-	name = "open space"
-	density = 0
-	icon_state = "black"
-	pathweight = 100000 //Seriously, don't try and path over this one numbnuts
-	var/icon/darkoverlays = null
-	var/turf/floorbelow
-	var/list/overlay_references
-
-	New()
-		..()
-		getbelow()
-		return
-
-	Enter(var/atom/movable/AM)
-		if (..()) //TODO make this check if gravity is active (future use) - Sukasa
-			spawn(1)
-				// only fall down in defined areas (read: areas with artificial gravitiy)
-				if(!floorbelow) //make sure that there is actually something below
-					if(!getbelow())
-						return
-				if(AM)
-					var/area/areacheck = get_area(src)
-					var/blocked = 0
-					var/soft = 0
-					for(var/atom/A in floorbelow.contents)
-						if(A.density)
-							if(istype(A, /obj/structure/window))
-								var/obj/structure/window/W = A
-								blocked = W.is_fulltile()
-								if(blocked)
-									break
-							else
-								blocked = 1
-								break
-						if(istype(A, /obj/machinery/atmospherics/pipe/zpipe/up) && istype(AM,/obj/item/pipe))
-							blocked = 1
-							break
-						if(istype(A, /obj/structure/disposalpipe/up) && istype(AM,/obj/item/pipe))
-							blocked = 1
-							break
-						if(istype(A, /obj/multiz/stairs))
-							soft = 1
-							//dont break here, since we still need to be sure that it isnt blocked
-
-					if (soft || (!blocked && !(areacheck.name == "Space")))
-						AM.Move(floorbelow)
-						if (!soft && istype(AM, /mob/living/carbon/human))
-							var/mob/living/carbon/human/H = AM
-							var/damage = 5
-							H.apply_damage(min(rand(-damage,damage),0), BRUTE, "head")
-							H.apply_damage(min(rand(-damage,damage),0), BRUTE, "chest")
-							H.apply_damage(min(rand(-damage,damage),0), BRUTE, "l_leg")
-							H.apply_damage(min(rand(-damage,damage),0), BRUTE, "r_leg")
-							H.apply_damage(min(rand(-damage,damage),0), BRUTE, "l_arm")
-							H.apply_damage(min(rand(-damage,damage),0), BRUTE, "r_arm")
-							H:weakened = max(H:weakened,2)
-							H:updatehealth()
-		return ..()
-
-/turf/proc/hasbelow()
-	var/turf/controllerlocation = locate(1, 1, z)
-	for(var/obj/effect/landmark/zcontroller/controller in controllerlocation)
-		if(controller.down)
-			return 1
-	return 0
-
-/turf/simulated/floor/open/proc/getbelow()
-	var/turf/controllerlocation = locate(1, 1, z)
-	for(var/obj/effect/landmark/zcontroller/controller in controllerlocation)
-		// check if there is something to draw below
-		if(!controller.down)
-			src.ChangeTurf(get_base_turf(src.z))
-			return 0
-		else
-			floorbelow = locate(src.x, src.y, controller.down_target)
-			return 1
-	return 1
-
-// override to make sure nothing is hidden
-/turf/simulated/floor/open/levelupdate()
-	for(var/obj/O in src)
-		O.hide(0)
-
-//overwrite the attackby of space to transform it to openspace if necessary
-/turf/space/attackby(obj/item/C as obj, mob/user as mob)
-	if (istype(C, /obj/item/stack/cable_coil) && src.hasbelow())
-		var/turf/simulated/floor/open/W = src.ChangeTurf(/turf/simulated/floor/open)
-		W.attackby(C, user)
-		return
-	..()
-
-/turf/simulated/floor/open/ex_act(severity)
-	// cant destroy empty space with an ordinary bomb
-	return
-
-/turf/simulated/floor/open/attackby(obj/item/C as obj, mob/user as mob)
-	(..)
-	if (istype(C, /obj/item/stack/cable_coil))
-		var/obj/item/stack/cable_coil/cable = C
-		cable.turf_place(src, user)
-		return
-
-	if (istype(C, /obj/item/stack/rods))
-		var/obj/structure/lattice/L = locate(/obj/structure/lattice, src)
-		if(L)
-			return
-		var/obj/item/stack/rods/R = C
-		if (R.use(1))
-			user << "<span class='notice'>Constructing support lattice...</span>"
-			playsound(src.loc, 'sound/weapons/Genhit.ogg', 50, 1)
-			ReplaceWithLattice()
-		return
-
-	if (istype(C, /obj/item/stack/tile/floor))
-		var/obj/structure/lattice/L = locate(/obj/structure/lattice, src)
-		if(L)
-			var/obj/item/stack/tile/floor/S = C
-			if (S.get_amount() < 1)
-				return
-			qdel(L)
-			playsound(src.loc, 'sound/weapons/Genhit.ogg', 50, 1)
-			S.use(1)
-			ChangeTurf(/turf/simulated/floor/airless)
-			return
-		else
-			user << "<span class='warning'>The plating is going to need some support.</span>"
-	return
diff --git a/code/TriDimension/controller.dm b/code/TriDimension/controller.dm
deleted file mode 100644
index c8b81d0d499..00000000000
--- a/code/TriDimension/controller.dm
+++ /dev/null
@@ -1,189 +0,0 @@
-/obj/effect/landmark/zcontroller
-	name = "Z-Level Controller"
-	var/initialized = 0 // when set to 1, turfs will report to the controller
-	var/up = 0	// 1 allows  up movement
-	var/up_target = 0 // the Z-level that is above the current one
-	var/down = 0 // 1 allows down movement
-	var/down_target = 0 // the Z-level that is below the current one
-
-	var/list/slow = list()
-	var/list/normal = list()
-	var/list/fast = list()
-
-	var/slow_time
-	var/normal_time
-	var/fast_time
-
-/obj/effect/landmark/zcontroller/New()
-	..()
-	for (var/turf/T in world)
-		if (T.z == z)
-			fast += T
-	slow_time = world.time + 3000
-	normal_time = world.time + 600
-	fast_time = world.time + 10
-
-	processing_objects.Add(src)
-
-	initialized = 1
-	return 1
-
-/obj/effect/landmark/zcontroller/Destroy()
-	processing_objects.Remove(src)
-	return ..()
-
-/obj/effect/landmark/zcontroller/process()
-	if (world.time > fast_time)
-		calc(fast)
-		fast_time = world.time + 10
-
-	if (world.time > normal_time)
-		calc(normal)
-		normal_time = world.time + 600
-
-/*	if (world.time > slow_time)
-		calc(slow)
-		slow_time = world.time + 3000 */
-	return
-
-/obj/effect/landmark/zcontroller/proc/add(var/list/L, var/I, var/transfer)
-	while (L.len)
-		var/turf/T = pick(L)
-
-		L -= T
-		slow -= T
-		normal -= T
-		fast -= T
-
-		if(!T || !istype(T, /turf))
-			continue
-
-		switch (I)
-			if(1)	slow += T
-			if(2)	normal += T
-			if(3)	fast += T
-
-		if(transfer > 0)
-			if(up)
-				var/turf/controller_up = locate(1, 1, up_target)
-				for(var/obj/effect/landmark/zcontroller/c_up in controller_up)
-					var/list/temp = list()
-					temp += locate(T.x, T.y, up_target)
-					c_up.add(temp, I, transfer-1)
-
-			if(down)
-				var/turf/controller_down = locate(1, 1, down_target)
-				for(var/obj/effect/landmark/zcontroller/c_down in controller_down)
-					var/list/temp = list()
-					temp += locate(T.x, T.y, down_target)
-					c_down.add(temp, I, transfer-1)
-	return
-
-/turf
-	var/list/z_overlays = list()
-
-/turf/New()
-	..()
-
-	var/turf/controller = locate(1, 1, z)
-	for(var/obj/effect/landmark/zcontroller/c in controller)
-		if(c.initialized)
-			var/list/turf = list()
-			turf += src
-			c.add(turf,3,1)
-
-atom/movable/Move() //Hackish
-	. = ..()
-
-	var/turf/controllerlocation = locate(1, 1, src.z)
-	for(var/obj/effect/landmark/zcontroller/controller in controllerlocation)
-		if(controller.up || controller.down)
-			var/list/temp = list()
-			temp += locate(src.x, src.y, src.z)
-			controller.add(temp,3,1)
-
-/obj/effect/landmark/zcontroller/proc/calc(var/list/L)
-	var/list/slowholder = list()
-	var/list/normalholder = list()
-	var/list/fastholder = list()
-	var/new_list
-
-	while(L.len)
-		var/turf/T = pick(L)
-		new_list = 0
-
-		if(!T || !istype(T, /turf))
-			L -= T
-			continue
-
-		T.overlays -= T.z_overlays
-		T.z_overlays -= T.z_overlays
-
-		if(down && (istype(T, /turf/space) || istype(T, /turf/simulated/floor/open)))
-			var/turf/below = locate(T.x, T.y, down_target)
-			if(below)
-				if(!(istype(below, /turf/space) || istype(below, /turf/simulated/floor/open)))
-					var/image/t_img = list()
-					new_list = 1
-
-					var/image/temp = image(below, dir=below.dir, layer = TURF_LAYER + 0.04)
-
-					temp.color = rgb(127,127,127)
-					temp.overlays += below.overlays
-					t_img += temp
-					T.overlays += t_img
-					T.z_overlays += t_img
-
-				// get objects
-				var/image/o_img = list()
-				for(var/obj/o in below)
-					// ingore objects that have any form of invisibility
-					if(o.invisibility) continue
-					new_list = 2
-					var/image/temp2 = image(o, dir=o.dir, layer = TURF_LAYER+0.05*o.layer)
-					temp2.color = rgb(127,127,127)
-					temp2.overlays += o.overlays
-					o_img += temp2
-					// you need to add a list to .overlays or it will not display any because space
-				T.overlays += o_img
-				T.z_overlays += o_img
-
-				// get mobs
-				var/image/m_img = list()
-				for(var/mob/m in below)
-					// ingore mobs that have any form of invisibility
-					if(m.invisibility) continue
-					// only add this tile to fastprocessing if there is a living mob, not a dead one
-					if(istype(m, /mob/living)) new_list = 3
-					var/image/temp2 = image(m, dir=m.dir, layer = TURF_LAYER+0.05*m.layer)
-					temp2.color = rgb(127,127,127)
-					temp2.overlays += m.overlays
-					m_img += temp2
-					// you need to add a list to .overlays or it will not display any because space
-				T.overlays += m_img
-				T.z_overlays += m_img
-
-				T.overlays -= below.z_overlays
-				T.z_overlays -= below.z_overlays
-
-		L -= T
-
-		if(new_list == 1)
-			slowholder += T
-		if(new_list == 2)
-			normalholder += T
-		if(new_list == 3)
-			fastholder += T
-			for(var/d in cardinal)
-				var/turf/mT = get_step(T,d)
-				if(!(mT in fastholder))
-					fastholder += mT
-				for(var/f in cardinal)
-					var/turf/nT = get_step(mT,f)
-					if(!(nT in fastholder))
-						fastholder += nT
-
-	add(slowholder,1, 0)
-	add(normalholder, 2, 0)
-	add(fastholder, 3, 0)
-	return
diff --git a/code/TriDimension/controller_presets.dm b/code/TriDimension/controller_presets.dm
deleted file mode 100644
index f775b94e93e..00000000000
--- a/code/TriDimension/controller_presets.dm
+++ /dev/null
@@ -1,37 +0,0 @@
-/obj/effect/landmark/zcontroller/level_1_bottom
-	up = 1
-	up_target = 2
-
-/obj/effect/landmark/zcontroller/level_2_mid
-	up = 1
-	up_target = 3
-	down = 1
-	down_target = 1
-
-/obj/effect/landmark/zcontroller/level_3_mid
-	up = 1
-	up_target = 4
-	down = 1
-	down_target = 2
-
-/obj/effect/landmark/zcontroller/level_4_mid
-	up = 1
-	up_target = 5
-	down = 1
-	down_target = 3
-
-/obj/effect/landmark/zcontroller/level_2_top
-	down = 1
-	down_target = 1
-
-/obj/effect/landmark/zcontroller/level_3_top
-	down = 1
-	down_target = 2
-
-/obj/effect/landmark/zcontroller/level_4_top
-	down = 1
-	down_target = 3
-
-/obj/effect/landmark/zcontroller/level_5_top
-	down = 1
-	down_target = 4
\ No newline at end of file
diff --git a/code/ZAS/Atom.dm b/code/ZAS/Atom.dm
index e655295f783..ce69ad71622 100644
--- a/code/ZAS/Atom.dm
+++ b/code/ZAS/Atom.dm
@@ -64,9 +64,9 @@ turf/c_airblock(turf/other)
 	#ifdef ZLEVELS
 	if(other.z != src.z)
 		if(other.z < src.z)
-			if(!istype(src, /turf/simulated/floor/open)) return BLOCKED
+			if(!istype(src, /turf/simulated/open)) return BLOCKED
 		else
-			if(!istype(other, /turf/simulated/floor/open)) return BLOCKED
+			if(!istype(other, /turf/simulated/open)) return BLOCKED
 	#endif
 
 	var/result = 0
diff --git a/code/game/gamemodes/gameticker.dm b/code/game/gamemodes/gameticker.dm
index 614d181795d..f74ddff07d2 100644
--- a/code/game/gamemodes/gameticker.dm
+++ b/code/game/gamemodes/gameticker.dm
@@ -153,8 +153,6 @@ var/global/datum/controller/gameticker/ticker
 
 	processScheduler.start()
 
-	for(var/obj/multiz/ladder/L in world) L.connect() //Lazy hackfix for ladders. TODO: move this to an actual controller. ~ Z
-
 	if(config.sql_enabled)
 		statistic_cycle() // Polls population totals regularly and stores them in an SQL DB -- TLE
 
diff --git a/code/game/objects/explosion.dm b/code/game/objects/explosion.dm
index 1b32185ace3..b081530e10b 100644
--- a/code/game/objects/explosion.dm
+++ b/code/game/objects/explosion.dm
@@ -1,8 +1,6 @@
 //TODO: Flash range does nothing currently
 
-///// Z-Level Stuff
-proc/explosion(turf/epicenter, devastation_range, heavy_impact_range, light_impact_range, flash_range, adminlog = 1, z_transfer = 1)
-///// Z-Level Stuff
+proc/explosion(turf/epicenter, devastation_range, heavy_impact_range, light_impact_range, flash_range, adminlog = 1, z_transfer = UP|DOWN)
 	src = null	//so we don't abort once src is deleted
 	spawn(0)
 		if(config.use_recursive_explosions)
@@ -14,23 +12,19 @@ proc/explosion(turf/epicenter, devastation_range, heavy_impact_range, light_impa
 		epicenter = get_turf(epicenter)
 		if(!epicenter) return
 
-///// Z-Level Stuff
-		if(z_transfer && (devastation_range > 0 || heavy_impact_range > 0))
-			//transfer the explosion in both directions
-			explosion_z_transfer(epicenter, devastation_range, heavy_impact_range, light_impact_range, flash_range)
-///// Z-Level Stuff
+		// Handles recursive propagation of explosions.
+		if(devastation_range > 2 || heavy_impact_range > 2)
+			if(HasAbove(epicenter.z) && z_transfer & UP)
+				explosion(GetAbove(epicenter), max(0, devastation_range - 2), max(0, heavy_impact_range - 2), max(0, light_impact_range - 2), max(0, flash_range - 2), 0, UP)
+			if(HasBelow(epicenter.z) && z_transfer & DOWN)
+				explosion(GetAbove(epicenter), max(0, devastation_range - 2), max(0, heavy_impact_range - 2), max(0, light_impact_range - 2), max(0, flash_range - 2), 0, DOWN)
 
 		var/max_range = max(devastation_range, heavy_impact_range, light_impact_range, flash_range)
-		//playsound(epicenter, 'sound/effects/explosionfar.ogg', 100, 1, round(devastation_range*2,1) )
-		//playsound(epicenter, "explosion", 100, 1, round(devastation_range,1) )
 
-// Play sounds; we want sounds to be different depending on distance so we will manually do it ourselves.
-
-// Stereo users will also hear the direction of the explosion!
-
-// Calculate far explosion sound range. Only allow the sound effect for heavy/devastating explosions.
-
-// 3/7/14 will calculate to 80 + 35
+		// Play sounds; we want sounds to be different depending on distance so we will manually do it ourselves.
+		// Stereo users will also hear the direction of the explosion!
+		// Calculate far explosion sound range. Only allow the sound effect for heavy/devastating explosions.
+		// 3/7/14 will calculate to 80 + 35
 		var/far_dist = 0
 		far_dist += heavy_impact_range * 5
 		far_dist += devastation_range * 20
@@ -62,10 +56,6 @@ proc/explosion(turf/epicenter, devastation_range, heavy_impact_range, light_impa
 			message_admins("Explosion with size ([devastation_range], [heavy_impact_range], [light_impact_range]) in area [epicenter.loc.name] ([epicenter.x],[epicenter.y],[epicenter.z]) (<A HREF='?_src_=holder;adminplayerobservecoodjump=1;X=[epicenter.x];Y=[epicenter.y];Z=[epicenter.z]'>JMP</a>)")
 			log_game("Explosion with size ([devastation_range], [heavy_impact_range], [light_impact_range]) in area [epicenter.loc.name] ")
 
-//		var/lighting_controller_was_processing = lighting_controller.processing	//Pause the lighting updates for a bit
-//		lighting_controller.processing = 0
-
-
 		var/approximate_intensity = (devastation_range * 3) + (heavy_impact_range * 2) + light_impact_range
 		var/powernet_rebuild_was_deferred_already = defer_powernet_rebuild
 		// Large enough explosion. For performance reasons, powernets will be rebuilt manually
@@ -107,7 +97,6 @@ proc/explosion(turf/epicenter, devastation_range, heavy_impact_range, light_impa
 
 		sleep(8)
 
-//		if(!lighting_controller.processing)	lighting_controller.processing = lighting_controller_was_processing
 		if(!powernet_rebuild_was_deferred_already && defer_powernet_rebuild)
 			makepowernets()
 			defer_powernet_rebuild = 0
@@ -119,20 +108,3 @@ proc/explosion(turf/epicenter, devastation_range, heavy_impact_range, light_impa
 proc/secondaryexplosion(turf/epicenter, range)
 	for(var/turf/tile in range(range, epicenter))
 		tile.ex_act(2)
-
-///// Z-Level Stuff
-proc/explosion_z_transfer(turf/epicenter, devastation_range, heavy_impact_range, light_impact_range, flash_range, up = 1, down = 1)
-	var/turf/controllerlocation = locate(1, 1, epicenter.z)
-	for(var/obj/effect/landmark/zcontroller/controller in controllerlocation)
-		if(controller.down)
-			//start the child explosion, no admin log and no additional transfers
-			explosion(locate(epicenter.x, epicenter.y, controller.down_target), max(devastation_range - 2, 0), max(heavy_impact_range - 2, 0), max(light_impact_range - 2, 0), max(flash_range - 2, 0), 0, 0)
-			if(devastation_range - 2 > 0 || heavy_impact_range - 2 > 0) //only transfer further if the explosion is still big enough
-				explosion(locate(epicenter.x, epicenter.y, controller.down_target), max(devastation_range - 2, 0), max(heavy_impact_range - 2, 0), max(light_impact_range - 2, 0), max(flash_range - 2, 0), 0, 1)
-
-		if(controller.up)
-			//start the child explosion, no admin log and no additional transfers
-			explosion(locate(epicenter.x, epicenter.y, controller.up_target), max(devastation_range - 2, 0), max(heavy_impact_range - 2, 0), max(light_impact_range - 2, 0), max(flash_range - 2, 0), 0, 0)
-			if(devastation_range - 2 > 0 || heavy_impact_range - 2 > 0) //only transfer further if the explosion is still big enough
-				explosion(locate(epicenter.x, epicenter.y, controller.up_target), max(devastation_range - 2, 0), max(heavy_impact_range - 2, 0), max(light_impact_range - 2, 0), max(flash_range - 2, 0), 1, 0)
-///// Z-Level Stuff
diff --git a/code/game/objects/structures/lattice.dm b/code/game/objects/structures/lattice.dm
index f69407b0c92..cc87be62fab 100644
--- a/code/game/objects/structures/lattice.dm
+++ b/code/game/objects/structures/lattice.dm
@@ -11,7 +11,7 @@
 /obj/structure/lattice/New()
 	..()
 ///// Z-Level Stuff
-	if(!(istype(src.loc, /turf/space) || istype(src.loc, /turf/simulated/floor/open)))
+	if(!(istype(src.loc, /turf/space) || istype(src.loc, /turf/simulated/open)))
 ///// Z-Level Stuff
 		qdel(src)
 	for(var/obj/structure/lattice/LAT in src.loc)
diff --git a/code/game/turfs/simulated.dm b/code/game/turfs/simulated.dm
index 96f5466684f..e35426e1749 100644
--- a/code/game/turfs/simulated.dm
+++ b/code/game/turfs/simulated.dm
@@ -34,8 +34,7 @@
 	if (istype(A,/mob/living))
 		var/mob/living/M = A
 		if(M.lying)
-			..()
-			return
+			return ..()
 
 		// Ugly hack :( Should never have multiple plants in the same tile.
 		var/obj/effect/plant/plant = locate() in contents
diff --git a/code/game/turfs/turf.dm b/code/game/turfs/turf.dm
index 0d44f84914d..2069d06283d 100644
--- a/code/game/turfs/turf.dm
+++ b/code/game/turfs/turf.dm
@@ -75,6 +75,9 @@
 	if(movement_disabled && usr.ckey != movement_disabled_exception)
 		usr << "<span class='warning'>Movement is admin-disabled.</span>" //This is to identify lag problems
 		return
+
+	..()
+
 	if (!mover || !isturf(mover.loc))
 		return 1
 
diff --git a/code/game/turfs/turf_changing.dm b/code/game/turfs/turf_changing.dm
index 4962ddadb51..f6aabc5ce60 100644
--- a/code/game/turfs/turf_changing.dm
+++ b/code/game/turfs/turf_changing.dm
@@ -14,19 +14,11 @@
 	if (!N)
 		return
 
-///// Z-Level Stuff ///// This makes sure that turfs are not changed to space when one side is part of a zone
+	// This makes sure that turfs are not changed to space when one side is part of a zone
 	if(N == /turf/space)
-		var/turf/controller = locate(1, 1, src.z)
-		for(var/obj/effect/landmark/zcontroller/c in controller)
-			if(c.down)
-				var/turf/below = locate(src.x, src.y, c.down_target)
-				if((air_master.has_valid_zone(below) || air_master.has_valid_zone(src)) && !istype(below, /turf/space)) // dont make open space into space, its pointless and makes people drop out of the station
-					var/turf/W = src.ChangeTurf(/turf/simulated/floor/open)
-					var/list/temp = list()
-					temp += W
-					c.add(temp,3,1) // report the new open space to the zcontroller
-					return W
-///// Z-Level Stuff
+		var/turf/below = GetBelow(src)
+		if(istype(below) && (air_master.has_valid_zone(below) || air_master.has_valid_zone(src)))
+			N = /turf/simulated/open
 
 	var/obj/fire/old_fire = fire
 	var/old_opacity = opacity
@@ -46,11 +38,11 @@
 		if(S.zone) S.zone.rebuild()
 
 	if(ispath(N, /turf/simulated/floor))
-		var/turf/simulated/floor/W = new N( locate(src.x, src.y, src.z) )
+		var/turf/simulated/W = new N( locate(src.x, src.y, src.z) )
 		if(old_fire)
 			fire = old_fire
 
-		if (istype(W))
+		if (istype(W,/turf/simulated/floor))
 			W.RemoveLattice()
 
 		if(tell_universe)
diff --git a/code/modules/multiz/_stubs.dm b/code/modules/multiz/_stubs.dm
new file mode 100644
index 00000000000..4c6e63cb7e6
--- /dev/null
+++ b/code/modules/multiz/_stubs.dm
@@ -0,0 +1,16 @@
+/obj/effect/landmark/map_data
+	name = "Unknown"
+	desc = "An unknown location."
+	invisibility = 101
+
+	var/height = 1     ///< The number of Z-Levels in the map.
+	var/turf/edge_type ///< What the map edge should be formed with. (null = world.turf)
+
+// FOR THE LOVE OF GOD USE THESE.  DO NOT FUCKING SPAGHETTIFY THIS.
+// Use the Has*() functions if you ONLY need to check.
+// If you need to do something, use Get*().
+HasAbove(var/z)
+HasBelow(var/z)
+// These give either the turf or null.
+GetAbove(var/atom/atom)
+GetBelow(var/atom/atom)
\ No newline at end of file
diff --git a/code/modules/multiz/basic.dm b/code/modules/multiz/basic.dm
new file mode 100644
index 00000000000..e76c6516aa7
--- /dev/null
+++ b/code/modules/multiz/basic.dm
@@ -0,0 +1,35 @@
+// If you add a more comprehensive system, just untick this file.
+// WARNING: Only works for up to 17 z-levels!
+var/z_levels = 0 // Each bit represents a connection between adjacent levels.  So the first bit means levels 1 and 2 are connected.
+
+// If the height is more than 1, we mark all contained levels as connected.
+/obj/effect/landmark/map_data/New()
+	ASSERT(height <= z)
+	// Due to the offsets of how connections are stored v.s. how z-levels are indexed, some magic number silliness happened.
+	for(var/i = (z - height) to (z - 2))
+		z_levels |= (1 << i)
+	qdel(src)
+
+// The storage of connections between adjacent levels means some bitwise magic is needed.
+proc/HasAbove(var/z)
+	if(z >= world.maxz || z > 16 || z < 1)
+		return 0
+	return z_levels & (1 << (z - 1))
+
+proc/HasBelow(var/z)
+	if(z > world.maxz || z > 17 || z < 2)
+		return 0
+	return z_levels & (1 << (z - 2))
+
+// Thankfully, no bitwise magic is needed here.
+proc/GetAbove(var/atom/atom)
+	var/turf/turf = get_turf(atom)
+	if(!turf)
+		return null
+	return HasAbove(turf.z) ? get_step(turf, UP) : null
+
+proc/GetBelow(var/atom/atom)
+	var/turf/turf = get_turf(atom)
+	if(!turf)
+		return null
+	return HasBelow(turf.z) ? get_step(turf, DOWN) : null
diff --git a/code/modules/multiz/disabled.dm b/code/modules/multiz/disabled.dm
new file mode 100644
index 00000000000..b91fb789319
--- /dev/null
+++ b/code/modules/multiz/disabled.dm
@@ -0,0 +1,10 @@
+
+proc/HasAbove(var/z)
+	return 0
+proc/HasBelow(var/z)
+	return 0
+// These give either the turf or null.
+proc/GetAbove(var/turf/turf)
+	return null
+proc/GetBelow(var/turf/turf)
+	return null
\ No newline at end of file
diff --git a/code/modules/multiz/movement.dm b/code/modules/multiz/movement.dm
new file mode 100644
index 00000000000..dd0a93fec11
--- /dev/null
+++ b/code/modules/multiz/movement.dm
@@ -0,0 +1,51 @@
+/obj/item/weapon/tank/jetpack/verb/moveup()
+	set name = "Move Upwards"
+	set category = "Object"
+
+	. = 1
+	if(!allow_thrust(0.01, usr))
+		usr << "<span class='warning'>\The [src] is disabled.</span>"
+		return
+
+	var/turf/above = GetAbove(src)
+	if(!istype(above))
+		usr << "<span class='notice'>There is nothing of interest in this direction.</span>"
+		return
+
+	if(!istype(above, /turf/space) && !istype(above, /turf/simulated/open))
+		usr << "<span class='warning'>You bump against \the [above].</span>"
+		return
+
+	for(var/atom/A in above)
+		if(A.density)
+			usr << "<span class='warning'>\The [A] blocks you.</span>"
+			return
+
+	usr.Move(above)
+	usr << "<span class='notice'>You move upwards.</span>"
+
+/obj/item/weapon/tank/jetpack/verb/movedown()
+	set name = "Move Downwards"
+	set category = "Object"
+
+	. = 1
+	if(!allow_thrust(0.01, usr))
+		usr << "<span class='warning'>\The [src] is disabled.</span>"
+		return
+
+	var/turf/below = GetBelow(src)
+	if(!istype(below))
+		usr << "<span class='notice'>There is nothing of interest in this direction.</span>"
+		return
+
+	if(below.density)
+		usr << "<span class='warning'>You bump against \the [below].</span>"
+		return
+
+	for(var/atom/A in below)
+		if(A.density)
+			usr << "<span class='warning'>\The [A] blocks you.</span>"
+			return
+
+	usr.Move(below)
+	usr << "<span class='notice'>You move downwards.</span>"
diff --git a/code/TriDimension/Pipes.dm b/code/modules/multiz/pipes.dm
similarity index 85%
rename from code/TriDimension/Pipes.dm
rename to code/modules/multiz/pipes.dm
index 2a4771744e4..85e23b6797f 100644
--- a/code/TriDimension/Pipes.dm
+++ b/code/modules/multiz/pipes.dm
@@ -136,16 +136,13 @@ obj/machinery/atmospherics/pipe/zpipe/up/initialize()
 				node1 = target
 				break
 
-	var/turf/controllerlocation = locate(1, 1, src.z)
-	for(var/obj/effect/landmark/zcontroller/controller in controllerlocation)
-		if(controller.up)
-			var/turf/above = locate(src.x, src.y, controller.up_target)
-			if(above)
-				for(var/obj/machinery/atmospherics/target in above)
-					if(target.initialize_directions && istype(target, /obj/machinery/atmospherics/pipe/zpipe/down))
-						if (check_connect_types(target,src))
-							node2 = target
-							break
+	var/turf/above = GetAbove(src)
+	if(above)
+		for(var/obj/machinery/atmospherics/target in above)
+			if(target.initialize_directions && istype(target, /obj/machinery/atmospherics/pipe/zpipe/down))
+				if (check_connect_types(target,src))
+					node2 = target
+					break
 
 
 	var/turf/T = src.loc			// hide if turf is not intact
@@ -177,16 +174,13 @@ obj/machinery/atmospherics/pipe/zpipe/down/initialize()
 				node1 = target
 				break
 
-	var/turf/controllerlocation = locate(1, 1, src.z)
-	for(var/obj/effect/landmark/zcontroller/controller in controllerlocation)
-		if(controller.down)
-			var/turf/below = locate(src.x, src.y, controller.down_target)
-			if(below)
-				for(var/obj/machinery/atmospherics/target in below)
-					if(target.initialize_directions && istype(target, /obj/machinery/atmospherics/pipe/zpipe/up))
-						if (check_connect_types(target,src))
-							node2 = target
-							break
+	var/turf/below = GetBelow(src)
+	if(below)
+		for(var/obj/machinery/atmospherics/target in below)
+			if(target.initialize_directions && istype(target, /obj/machinery/atmospherics/pipe/zpipe/up))
+				if (check_connect_types(target,src))
+					node2 = target
+					break
 
 
 	var/turf/T = src.loc			// hide if turf is not intact
diff --git a/code/modules/multiz/structures.dm b/code/modules/multiz/structures.dm
new file mode 100644
index 00000000000..61e3a7e4871
--- /dev/null
+++ b/code/modules/multiz/structures.dm
@@ -0,0 +1,86 @@
+//////////////////////////////
+//Contents: Ladders, Stairs.//
+//////////////////////////////
+
+/obj/structure/ladder
+	name = "ladder"
+	desc = "A ladder.  You can climb it up and down."
+	icon_state = "ladderdown"
+	icon = 'icons/obj/structures.dmi'
+	density = 0
+	opacity = 0
+	anchored = 1
+
+	var/obj/structure/ladder/target
+
+	initialize()
+		// the upper will connect to the lower
+		if(icon_state == "ladderup")
+			return
+
+		for(var/obj/structure/ladder/L in GetBelow(src))
+			if(L.icon_state == "ladderup")
+				target = L
+				L.target = src
+				return
+
+	Destroy()
+		if(target && icon_state == "ladderdown")
+			qdel(target)
+		return ..()
+
+	attackby(obj/item/C as obj, mob/user as mob)
+		. = ..()
+		attack_hand(user)
+		return
+
+	attack_hand(var/mob/M)
+		if(!target || !istype(target.loc, /turf))
+			M << "<span class='notice'>\The [src] is incomplete and can't be climbed.</span>"
+			return
+
+		var/turf/T = target.loc
+		for(var/atom/A in T)
+			if(A.density)
+				M << "<span class='notice'>\A [A] is blocking \the [src].</span>"
+				return
+
+		M.visible_message("<span class='notice'>\A [M] climbs [icon_state == "ladderup" ? "up" : "down"] \a [src]!</span>",
+			"You climb [icon_state == "ladderup"  ? "up" : "down"] \the [src]!",
+			"You hear the grunting and clanging of a metal ladder being used.")
+		M.Move(T)
+
+	CanPass(obj/mover, turf/source, height, airflow)
+		return airflow || !density
+
+/obj/structure/stairs
+	name = "Stairs"
+	desc = "Stairs.  You walk up and down them."
+	icon_state = "rampbottom"
+	icon = 'icons/obj/structures.dmi'
+	density = 0
+	opacity = 0
+	anchored = 1
+
+	var/obj/structure/stairs/connected
+
+	New()
+		..()
+		var/turf/above = GetAbove(src)
+		if(istype(above, /turf/space))
+			above.ChangeTurf(/turf/simulated/open)
+
+	initialize()
+		var/updown = icon_state == "rampbottom" ? UP : DOWN
+
+		var/turf/T = get_step(src, dir | updown)
+		connected = locate() in T
+		ASSERT(connected)
+
+	Uncross(var/atom/movable/M)
+		if(connected && M.dir == dir)
+			M.loc = connected.loc
+		return 1
+
+	CanPass(obj/mover, turf/source, height, airflow)
+		return airflow || !density
\ No newline at end of file
diff --git a/code/modules/multiz/turf.dm b/code/modules/multiz/turf.dm
new file mode 100644
index 00000000000..c78807a3286
--- /dev/null
+++ b/code/modules/multiz/turf.dm
@@ -0,0 +1,111 @@
+/turf/simulated/open
+	name = "open space"
+	icon = 'icons/turf/space.dmi'
+	icon_state = "black"
+	alpha = 16
+	layer = 0
+	density = 0
+	pathweight = 100000 //Seriously, don't try and path over this one numbnuts
+
+	var/turf/below
+	var/list/underlay_references
+	var/global/overlay_map = list()
+
+/turf/simulated/open/New()
+	. = ..()
+	ASSERT(HasBelow(z))
+	below = GetBelow(src)
+
+/turf/simulated/open/Entered(var/atom/movable/mover)
+	// only fall down in defined areas (read: areas with artificial gravitiy)
+	if(!istype(below)) //make sure that there is actually something below
+		below = GetBelow(src)
+		if(!below)
+			return
+
+	// No gravity in space, apparently.
+	var/area/area = get_area(src)
+	if(area.name == "Space")
+		return
+
+	// Prevent pipes from falling into the void... if there is a pipe to support it.
+	if(istype(mover, /obj/item/pipe) && \
+		(locate(/obj/structure/disposalpipe/up) in below) || \
+		 locate(/obj/machinery/atmospherics/pipe/zpipe/up in below))
+		return
+
+	// See if something prevents us from falling.
+	var/soft = 0
+	for(var/atom/A in below)
+		if(A.density)
+			if(!istype(A, /obj/structure/window))
+				return
+			else
+				var/obj/structure/window/W = A
+				if(W.is_fulltile())
+					return
+		// Dont break here, since we still need to be sure that it isnt blocked
+		if(istype(A, /obj/structure/stairs))
+			soft = 1
+
+	// We've made sure we can move, now.
+	mover.Move(below)
+
+	if(!soft)
+		if(!istype(mover, /mob))
+			if(istype(below, /turf/simulated/open))
+				below.visible_message("\The [mover] falls from the deck above through \the [below]!", "You hear a whoosh of displaced air.")
+			else
+				below.visible_message("\The [mover] falls from the deck above and slams into \the [below]!", "You hear something slam into the deck.")
+		else
+			var/mob/M = mover
+			if(istype(below, /turf/simulated/open))
+				below.visible_message("\The [mover] falls from the deck above through \the [below]!", "You hear a soft whoosh.[M.stat ? "" : ".. and some screaming."]")
+			else
+				M.visible_message("\The [mover] falls from the deck above and slams into \the [below]!", "You land on \the [below].", "You hear a soft whoosh and a crunch")
+
+			// Handle people getting hurt, it's funny!
+			if (istype(mover, /mob/living/carbon/human))
+				var/mob/living/carbon/human/H = mover
+				var/damage = 5
+				H.apply_damage(rand(0, damage), BRUTE, "head")
+				H.apply_damage(rand(0, damage), BRUTE, "chest")
+				H.apply_damage(rand(0, damage), BRUTE, "l_leg")
+				H.apply_damage(rand(0, damage), BRUTE, "r_leg")
+				H.apply_damage(rand(0, damage), BRUTE, "l_arm")
+				H.apply_damage(rand(0, damage), BRUTE, "r_arm")
+				H.weakened = max(H.weakened,2)
+				H.updatehealth()
+
+// override to make sure nothing is hidden
+/turf/simulated/open/levelupdate()
+	for(var/obj/O in src)
+		O.hide(0)
+
+// Straight copy from space.
+/turf/simulated/open/attackby(obj/item/C as obj, mob/user as mob)
+	if (istype(C, /obj/item/stack/rods))
+		var/obj/structure/lattice/L = locate(/obj/structure/lattice, src)
+		if(L)
+			return
+		var/obj/item/stack/rods/R = C
+		if (R.use(1))
+			user << "<span class='notice'>Constructing support lattice ...</span>"
+			playsound(src, 'sound/weapons/Genhit.ogg', 50, 1)
+			ReplaceWithLattice()
+		return
+
+	if (istype(C, /obj/item/stack/tile/floor))
+		var/obj/structure/lattice/L = locate(/obj/structure/lattice, src)
+		if(L)
+			var/obj/item/stack/tile/floor/S = C
+			if (S.get_amount() < 1)
+				return
+			qdel(L)
+			playsound(src, 'sound/weapons/Genhit.ogg', 50, 1)
+			S.use(1)
+			ChangeTurf(/turf/simulated/floor/airless)
+			return
+		else
+			user << "<span class='warning'>The plating is going to need some support.</span>"
+	return
\ No newline at end of file
diff --git a/code/modules/power/cable.dm b/code/modules/power/cable.dm
index 7e35d2a9cfd..b5aa43077f9 100644
--- a/code/modules/power/cable.dm
+++ b/code/modules/power/cable.dm
@@ -126,11 +126,10 @@ By design, d1 is the smallest direction and d2 is the highest
 		return
 
 	if(istype(W, /obj/item/weapon/wirecutters))
-///// Z-Level Stuff
-		if(src.d1 == 12 || src.d2 == 12)
+		if(d1 == 12 || d2 == 12)
 			user << "<span class='warning'>You must cut this cable from above.</span>"
 			return
-///// Z-Level Stuff
+
 		if(breaker_box)
 			user << "\red This cable is connected to nearby breaker box. Use breaker box to interact with it."
 			return
@@ -146,16 +145,13 @@ By design, d1 is the smallest direction and d2 is the highest
 		for(var/mob/O in viewers(src, null))
 			O.show_message("<span class='warning'>[user] cuts the cable.</span>", 1)
 
-///// Z-Level Stuff
-		if(src.d1 == 11 || src.d2 == 11)
-			var/turf/controllerlocation = locate(1, 1, z)
-			for(var/obj/effect/landmark/zcontroller/controller in controllerlocation)
-				if(controller.down)
-					var/turf/below = locate(src.x, src.y, controller.down_target)
-					for(var/obj/structure/cable/c in below)
-						if(c.d1 == 12 || c.d2 == 12)
-							qdel(c)
-///// Z-Level Stuff
+		if(d1 == 11 || d2 == 11)
+			var/turf/turf = GetBelow(src)
+			if(turf)
+				for(var/obj/structure/cable/c in turf)
+					if(c.d1 == 12 || c.d2 == 12)
+						qdel(c)
+
 		investigate_log("was cut by [key_name(usr, usr.client)] in [user.loc.loc]","wires")
 
 		qdel(src)
@@ -347,19 +343,20 @@ obj/structure/cable/proc/cableColor(var/colorC)
 	. = list()	// this will be a list of all connected power objects
 	var/turf/T
 
-///// Z-Level Stuff
-	if (d1 == 11 || d1 == 12)
-		var/turf/controllerlocation = locate(1, 1, z)
-		for(var/obj/effect/landmark/zcontroller/controller in controllerlocation)
-			if(controller.up && d1 == 12)
-				T = locate(src.x, src.y, controller.up_target)
-				if(T)
-					. += power_list(T, src, 11, 1)
-			if(controller.down && d1 == 11)
-				T = locate(src.x, src.y, controller.down_target)
-				if(T)
-					. += power_list(T, src, 12, 1)
-///// Z-Level Stuff
+	// Handle z-level connections.
+	if(d1 == 11 || d1 == 12)
+		// Connections below.
+		if(d1 == 11)
+			var/turf/turf = GetBelow(src)
+			if(turf)
+				. += power_list(turf, src, 12, 1)
+
+		// Connections above.
+		if(d1 == 12)
+			var/turf/turf = GetAbove(src)
+			if(turf)
+				. += power_list(turf, src, 11, 1)
+
 	//get matching cables from the first direction
 	else if(d1) //if not a node cable
 		T = get_step(src, d1)
@@ -376,19 +373,22 @@ obj/structure/cable/proc/cableColor(var/colorC)
 
 	. += power_list(loc, src, d1, powernetless_only) //get on turf matching cables
 
-///// Z-Level Stuff
+
+	// Second direction.
+	// Handle z-level connections.
 	if(d2 == 11 || d2 == 12)
-		var/turf/controllerlocation = locate(1, 1, z)
-		for(var/obj/effect/landmark/zcontroller/controller in controllerlocation)
-			if(controller.up && d2 == 12)
-				T = locate(src.x, src.y, controller.up_target)
-				if(T)
-					. += power_list(T, src, 11, 1)
-			if(controller.down && d2 == 11)
-				T = locate(src.x, src.y, controller.down_target)
-				if(T)
-					. += power_list(T, src, 12, 1)
-///// Z-Level Stuff
+		// Connections below.
+		if(d2 == 11)
+			var/turf/turf = GetBelow(src)
+			if(turf)
+				. += power_list(turf, src, 12, 1)
+
+		// Connections above.
+		if(d2 == 12)
+			var/turf/turf = GetAbove(src)
+			if(turf)
+				. += power_list(turf, src, 11, 1)
+
 	else
 		//do the same on the second direction (which can't be 0)
 		T = get_step(src, d2)
@@ -672,15 +672,14 @@ obj/structure/cable/proc/cableColor(var/colorC)
 				return
 ///// Z-Level Stuff
 		// check if the target is open space
-		if(istype(F, /turf/simulated/floor/open))
+		if(istype(F, /turf/simulated/open))
 			for(var/obj/structure/cable/LC in F)
 				if((LC.d1 == dirn && LC.d2 == 11 ) || ( LC.d2 == dirn && LC.d1 == 11))
 					user << "<span class='warning'>There's already a cable at that position.</span>"
 					return
 
-			var/turf/simulated/floor/open/temp = F
 			var/obj/structure/cable/C = new(F)
-			var/obj/structure/cable/D = new(temp.floorbelow)
+			var/obj/structure/cable/D = new(GetBelow(F))
 
 			C.cableColor(color)
 
diff --git a/code/modules/recycling/disposal.dm b/code/modules/recycling/disposal.dm
index dcf58713e61..d764d56e555 100644
--- a/code/modules/recycling/disposal.dm
+++ b/code/modules/recycling/disposal.dm
@@ -985,12 +985,9 @@
 		var/obj/structure/disposalpipe/P
 
 		if(nextdir == 12)
-			var/turf/controllerlocation = locate(1, 1, src.z)
-			for(var/obj/effect/landmark/zcontroller/controller in controllerlocation)
-				if(controller.up)
-					T = locate(src.x, src.y, controller.up_target)
+			T = GetAbove(src)
 			if(!T)
-				H.loc = src.loc
+				H.loc = loc
 				return
 			else
 				for(var/obj/structure/disposalpipe/down/F in T)
@@ -1038,10 +1035,7 @@
 		var/obj/structure/disposalpipe/P
 
 		if(nextdir == 11)
-			var/turf/controllerlocation = locate(1, 1, src.z)
-			for(var/obj/effect/landmark/zcontroller/controller in controllerlocation)
-				if(controller.down)
-					T = locate(src.x, src.y, controller.down_target)
+			T = GetBelow(src)
 			if(!T)
 				H.loc = src.loc
 				return
diff --git a/icons/obj/structures.dmi b/icons/obj/structures.dmi
index 8312e7ea56f..e5071ac8f04 100644
Binary files a/icons/obj/structures.dmi and b/icons/obj/structures.dmi differ