diff --git a/api.lua b/api.lua
index 58b950e..3bafcb0 100644
--- a/api.lua
+++ b/api.lua
@@ -1,5 +1,5 @@
 
--- Mobs Api (26th September 2016)
+-- Mobs Api (28th September 2016)
 
 mobs = {}
 mobs.mod = "redo"
@@ -39,6 +39,7 @@ local disable_blood = minetest.setting_getbool("mobs_disable_blood")
 local creative = minetest.setting_getbool("creative_mode")
 local spawn_protected = tonumber(minetest.setting_get("mobs_spawn_protected")) or 1
 local remove_far = minetest.setting_getbool("remove_far_mobs")
+local difficulty = tonumber(minetest.setting_get("mob_difficulty")) or 1.0
 
 -- pathfinding settings
 local enable_pathfinding = true
@@ -361,7 +362,8 @@ function check_for_death(self)
 	if self.on_die then
 
 		self.on_die(self, pos)
-self.object:remove()
+		self.object:remove()
+
 		return true
 	end
 
@@ -2281,8 +2283,8 @@ minetest.register_entity(name, {
 	drawtype = def.drawtype, -- DEPRECATED, use rotate instead
 	rotate = math.rad(def.rotate or 0), --  0=front, 90=side, 180=back, 270=side2
 	lifetimer = def.lifetimer or 180, -- 3 minutes
-	hp_min = def.hp_min or 5,
-	hp_max = def.hp_max or 10,
+	hp_min = (def.hp_min or 5) * difficulty,
+	hp_max = (def.hp_max or 10) * difficulty,
 	physical = true,
 	collisionbox = def.collisionbox,
 	visual = def.visual,
@@ -2292,7 +2294,7 @@ minetest.register_entity(name, {
 	view_range = def.view_range or 5,
 	walk_velocity = def.walk_velocity or 1,
 	run_velocity = def.run_velocity or 2,
-	damage = def.damage or 0,
+	damage = (def.damage or 0) * difficulty,
 	light_damage = def.light_damage or 0,
 	water_damage = def.water_damage or 0,
 	lava_damage = def.lava_damage or 0,
diff --git a/api.txt b/api.txt
index 6af7eb5..9b5461c 100644
--- a/api.txt
+++ b/api.txt
@@ -1,5 +1,5 @@
 
-MOB API (26th September 2016)
+MOB API (28th September 2016)
 
 The mob api is a function that can be called on by other mods to add new animals or monsters into minetest.
 
@@ -11,6 +11,7 @@ The mob api is a function that can be called on by other mods to add new animals
     'mobs_spawn_protected' if set to 1 then mobs will not spawn in protected areas (default is 0)
     'remove_far_mobs' if true then mobs that are outside players visual range will be removed (default is false)
     'mobname_chance' can change specific mob chance rates or set to 0 to disable e.g. mobs_animal:cow_chance = 1000
+    'mob_difficulty' sets difficulty level (health and hit damage multiplied by this number), defaults to 1.0.
 
 
 mobs:register_mob(name, definition)
diff --git a/readme.MD b/readme.MD
index eeafb26..5dd20cf 100644
--- a/readme.MD
+++ b/readme.MD
@@ -20,7 +20,7 @@ Crafts:
 
 Changelog:
 
-- 1.31- Added 'attack_animals' and 'specific_attack' flags for custom monster attacks.
+- 1.31- Added 'attack_animals' and 'specific_attack' flags for custom monster attacks, also 'mob_difficulty' .conf setting to make mobs harder.
 - 1.30- Added support for invisibility mod (mobs cant attack what they cant see), tweaked and tidied code
 - 1.29- Split original Mobs Redo into a modpack to make it easier to disable mob sets (animal, monster, npc) or simply use the Api itself for your own mod
 - 1.28- New damage system added with ability for mob to be immune to weapons or healed by them :)