diff --git a/code/controllers/configuration.dm b/code/controllers/configuration.dm
index 57f22472551..5021453462e 100644
--- a/code/controllers/configuration.dm
+++ b/code/controllers/configuration.dm
@@ -166,6 +166,7 @@ var/list/gamemode_cache = list()
 	var/simultaneous_pm_warning_timeout = 100
 
 	var/use_recursive_explosions //Defines whether the server uses recursive or circular explosions.
+	var/multi_z_explosion_scalar = 0.5 //Multiplier for how much weaker explosions are on neighboring z levels.
 
 	var/assistant_maint = 0 //Do assistants get maint access?
 	var/gateway_delay = 18000 //How long the gateway takes before it activates. Default is half an hour.
@@ -283,6 +284,9 @@ var/list/gamemode_cache = list()
 				if ("use_recursive_explosions")
 					use_recursive_explosions = 1
 
+				if ("multi_z_explosion_scalar")
+					multi_z_explosion_scalar = text2num(value)
+
 				if ("log_ooc")
 					config.log_ooc = 1
 
diff --git a/code/game/objects/explosion.dm b/code/game/objects/explosion.dm
index 7940c964262..61e764b09ca 100644
--- a/code/game/objects/explosion.dm
+++ b/code/game/objects/explosion.dm
@@ -1,7 +1,7 @@
 //TODO: Flash range does nothing currently
 
 proc/explosion(turf/epicenter, devastation_range, heavy_impact_range, light_impact_range, flash_range, adminlog = 1, z_transfer = UP|DOWN, shaped)
-	var/multi_z_scalar = 0.35
+	var/multi_z_scalar = config.multi_z_explosion_scalar
 	src = null	//so we don't abort once src is deleted
 	spawn(0)
 		var/start = world.timeofday
@@ -9,7 +9,7 @@ proc/explosion(turf/epicenter, devastation_range, heavy_impact_range, light_impa
 		if(!epicenter) return
 
 		// Handles recursive propagation of explosions.
-		if(z_transfer)
+		if(z_transfer && multi_z_scalar)
 			var/adj_dev   = max(0, (multi_z_scalar * devastation_range) - (shaped ? 2 : 0) )
 			var/adj_heavy = max(0, (multi_z_scalar * heavy_impact_range) - (shaped ? 2 : 0) )
 			var/adj_light = max(0, (multi_z_scalar * light_impact_range) - (shaped ? 2 : 0) )
@@ -45,8 +45,8 @@ proc/explosion(turf/epicenter, devastation_range, heavy_impact_range, light_impa
 					M.playsound_local(epicenter, 'sound/effects/explosionfar.ogg', far_volume, 1, frequency, falloff = 5)
 
 		if(adminlog)
-			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] ")
+			message_admins("Explosion with [shaped ? "shaped" : "non-shaped"] 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 [shaped ? "shaped" : "non-shaped"] size ([devastation_range], [heavy_impact_range], [light_impact_range]) in area [epicenter.loc.name] ")
 
 		var/approximate_intensity = (devastation_range * 3) + (heavy_impact_range * 2) + light_impact_range
 		var/powernet_rebuild_was_deferred_already = defer_powernet_rebuild
diff --git a/config/example/config.txt b/config/example/config.txt
index 8437829fd38..232d3c66ad1 100644
--- a/config/example/config.txt
+++ b/config/example/config.txt
@@ -33,6 +33,9 @@ JOBS_HAVE_MINIMAL_ACCESS
 ## Unhash this to use recursive explosions, keep it hashed to use circle explosions. Recursive explosions react to walls, airlocks and blast doors, making them look a lot cooler than the boring old circular explosions. They require more CPU and are (as of january 2013) experimental
 #USE_RECURSIVE_EXPLOSIONS
 
+Configure how fast explosion strength diminishes when travelling up/down z levels. All explosion distances are multiplied by this each time they go up/down z-levels.
+#MULTI_Z_EXPLOSION_SCALAR 0.5
+
 ## log OOC channel
 LOG_OOC
 
diff --git a/html/changelogs/Leshana - MultiZAS.yml b/html/changelogs/Leshana - MultiZAS.yml
new file mode 100644
index 00000000000..891bf846c2e
--- /dev/null
+++ b/html/changelogs/Leshana - MultiZAS.yml	
@@ -0,0 +1,5 @@
+author: Leshana
+delete-after: True
+changes: 
+  - tweak: "Optimized (but still not enabled) multi-z ZAS"
+  - rscadd: "Multi-Z explosion transfer coefficient is now configurable"
\ No newline at end of file