diff --git a/README.md b/README.md
index d408f788..c105f646 100644
--- a/README.md
+++ b/README.md
@@ -93,12 +93,14 @@ The following mods are also included:
     * [lightning][] ([LGPL/CC-BY-SA](mods/weather/lightning/README.md))
     * [weather][] ([LGPL/WTFPL/CC-BY-SA](mods/weather/weather/README))
 * world/
+    * [ambience][ambience_ultralite] (WTFPL / [CC-BY / CC-BY-SA / CC-BY-NC-SA / CC0](mods/world/ambience/sounds/SoundLicenses.txt))
     * [areas][] ([LGPL](mods/world/areas/LICENSE.txt))
     * [glow][] (GPL)
     * [worldedge][] ([DWYWPL](mods/world/worldedge/licence.txt))
 
 
 
+[ambience_ultralite]: https://forum.minetest.net/viewtopic.php?p=151166#p151166
 [areas]: https://forum.minetest.net/viewtopic.php?t=7239
 [3d_armor]: https://forum.minetest.net/viewtopic.php?t=4654
 [adv_spawning]: https://github.com/sapier/adv_spawning
diff --git a/mods/world/ambience/README.md b/mods/world/ambience/README.md
new file mode 100644
index 00000000..d29a1d52
--- /dev/null
+++ b/mods/world/ambience/README.md
@@ -0,0 +1,4 @@
+# ambience_ultralite
+Mod that adds environment sounds in Minetest.
+
+Stripped version of Immersive Sounds .36 mod by Neuromancer and TenPlus1.
\ No newline at end of file
diff --git a/mods/world/ambience/depends.txt b/mods/world/ambience/depends.txt
new file mode 100644
index 00000000..4ad96d51
--- /dev/null
+++ b/mods/world/ambience/depends.txt
@@ -0,0 +1 @@
+default
diff --git a/mods/world/ambience/init.lua b/mods/world/ambience/init.lua
new file mode 100644
index 00000000..cf5070f9
--- /dev/null
+++ b/mods/world/ambience/init.lua
@@ -0,0 +1,228 @@
+--= Ambience lite by TenPlus1 (2nd March 2015)
+--= modified by kilbith (2015)
+
+local max_frequency_all = 1000 -- larger number means more frequent sounds (10-1000)
+local SOUNDVOLUME = 1
+local volume = 0.3
+local ambiences
+local played_on_start = false
+local tempy = {}
+
+-- sound sets
+local night = {
+	handler = {},			frequency = 40,
+	{name="hornedowl",		length=2.5},
+	{name="cricket",		length=6}
+}
+local day = {
+	handler = {},			frequency = 40,
+	{name="robin",			length=4.5},
+	{name="bird1",			length=11.5},
+	{name="bird2",			length=6.5}
+}
+local air_high = {
+	handler = {},			frequency = 20,
+	{name="craw",			length=3.5}
+}
+local cave = {
+	handler = {},			frequency = 60,
+	{name="drippingwater1",		length=1.5},
+	{name="drippingwater2",		length=1.5}
+}
+local beach = {
+	handler = {},			frequency = 80,
+	{name="seagull",		length=4.5},
+	{name="wind",			length=9.5}
+}
+local desert = {
+	handler = {},			frequency = 20,
+	{name="desertwind",		length=8.5}
+}
+local flowing_water = {
+	handler = {},			frequency = 1000,
+	{name="waterfall",		length=6}
+}
+local underwater = {
+	handler = {},			frequency = 1000,
+	{name="scuba",			length=8}
+}
+local splash = {
+	handler = {},			frequency = 1000,
+	{name="swim_splashing",		length=3}
+}
+local lava = {
+	handler = {},			frequency = 1000,
+	{name="lava",			length=7}
+}
+
+-- check where player is and which sounds are played
+local get_ambience = function(player)
+
+	-- where am I?
+	local pos = player:getpos()
+
+	-- what is around me?
+	pos.y = pos.y + 1.4 -- head level
+	local nod_head = minetest.get_node(pos).name
+
+	pos.y = pos.y - 1.2 -- feet level
+	local nod_feet = minetest.get_node(pos).name
+
+	pos.y = pos.y - 0.2 -- reset pos
+
+	-- START Ambiance
+
+	if nod_head == "default:water_source" or nod_head == "default:water_flowing" then
+		return {underwater=underwater}
+	end
+
+	if nod_feet == "default:water_source" or nod_feet == "default:water_flowing" then
+		return {splash=splash}
+	end
+
+	-- this may seem messy but is faster than checking each area separately for specific nodes
+	local num_lava, num_water_source, num_water_flowing, num_desert = 0,0,0,0
+
+	-- get block of nodes we need to check
+	tempy = minetest.find_nodes_in_area({x=pos.x-6,y=pos.y-2, z=pos.z-6}, {x=pos.x+6,y=pos.y+2, z=pos.z+6},
+		{"default:lava_flowing", "default:lava_source", "default:water_flowing", "default:water_source", 
+		"default:desert_sand", "default:desert_stone",})
+
+	-- count separate instances in block
+	for _, npos in ipairs(tempy) do
+		local node = minetest.get_node(npos).name
+		if node == "default:lava_flowing" or node == "default:lava_source" then num_lava = num_lava + 1 end
+		if node == "default:water_flowing" then num_water_flowing = num_water_flowing + 1 end
+		if node == "default:water_source" then num_water_source = num_water_source + 1 end
+		if node == "default:desert_sand" or node == "default:desert_stone" then num_desert = num_desert + 1 end
+	end ; --print (num_fire, num_lava, num_water_flowing, num_water_source, num_desert)
+
+	if num_lava > 5 then
+		return {lava=lava}		
+	end
+
+	if num_water_flowing > 30 then
+		return {flowing_water=flowing_water}
+	end
+
+	if pos.y < 7 and pos.y > 0 and num_water_source > 100 then
+		return {beach=beach}
+	end
+
+	if num_desert > 150 then
+		return {desert=desert}
+	end
+
+	if pos.y < -10 then
+		return {cave=cave}
+	end
+	
+	if pos.y > 60 then
+		return {air_high=air_high}
+	end
+
+	if minetest.get_timeofday() > 0.2 and minetest.get_timeofday() < 0.8 then
+		return {day=day}
+	else
+		return {night=night}
+	end
+
+	-- END Ambiance
+end
+
+-- play sound, set handler then delete handler when sound finished
+local play_sound = function(player, list, number)
+
+	local player_name = player:get_player_name()
+
+	if list.handler[player_name] == nil then
+
+		local gain = volume * SOUNDVOLUME
+		local handler = minetest.sound_play(list[number].name, {to_player=player_name, gain=gain})
+
+		if handler then
+			list.handler[player_name] = handler
+
+			minetest.after(list[number].length, function(args)
+				local list = args[1]
+				local player_name = args[2]
+
+				if list.handler[player_name] then
+					minetest.sound_stop(list.handler[player_name])
+					list.handler[player_name] = nil
+				end
+			end, {list, player_name})
+		end
+
+	end
+end
+
+-- stop sound in still_playing
+local stop_sound = function (list, player)
+
+	local player_name = player:get_player_name()
+
+	if list.handler[player_name] then
+		if list.on_stop then
+			minetest.sound_play(list.on_stop, {to_player=player:get_player_name(),gain=SOUNDVOLUME})
+		end
+		minetest.sound_stop(list.handler[player_name])
+		list.handler[player_name] = nil
+	end
+
+end
+
+-- check sounds that are not in still_playing
+local still_playing = function(still_playing, player)
+	if not still_playing.air_high then			stop_sound(air_high, player) end
+	if not still_playing.cave then				stop_sound(cave, player) end
+	if not still_playing.beach then				stop_sound(beach, player) end
+	if not still_playing.desert then			stop_sound(desert, player) end
+	if not still_playing.night then				stop_sound(night, player) end
+	if not still_playing.day then				stop_sound(day, player) end
+	if not still_playing.flowing_water then			stop_sound(flowing_water, player) end
+	if not still_playing.splash then			stop_sound(splash, player) end
+	if not still_playing.underwater then			stop_sound(underwater, player) end
+	if not still_playing.lava then				stop_sound(lava, player) end	
+end
+
+-- player routine
+local timer = 0
+minetest.register_globalstep(function(dtime)
+	timer = timer + dtime
+
+	-- every 1 second
+	if timer < 1 then return end
+	timer = 0
+
+	for _,player in ipairs(minetest.get_connected_players()) do
+--local t1 = os.clock()
+		ambiences = get_ambience(player)
+--print ("[AMBIENCE] "..math.ceil((os.clock() - t1) * 1000).." ms")
+		still_playing(ambiences, player)
+
+		for _,ambience in pairs(ambiences) do
+
+			if math.random(1, 1000) <= ambience.frequency then			
+				if ambience.on_start and played_on_start == false then
+					played_on_start = true
+					minetest.sound_play(ambience.on_start,
+					{to_player=player:get_player_name(),gain=SOUNDVOLUME})					
+				end
+				play_sound(player, ambience, math.random(1, #ambience))
+			end
+		end
+
+	end
+end)
+
+-- set volume command
+minetest.register_chatcommand("svol", {
+	params = "<svol>",
+	description = "set sound volume (0.1 to 1.0)",
+	privs = {server=true},
+	func = function(name, param)
+		SOUNDVOLUME = param
+		minetest.chat_send_player(name, "Sound volume set.")
+	end,
+})
diff --git a/mods/world/ambience/sounds/SoundLicenses.txt b/mods/world/ambience/sounds/SoundLicenses.txt
new file mode 100644
index 00000000..35ce9381
--- /dev/null
+++ b/mods/world/ambience/sounds/SoundLicenses.txt
@@ -0,0 +1,60 @@
+--------------Music Lic:
+Amethystium:
+--Avalon
+--Ethereal
+--Faraway
+--Strangely Beautiful
+
+"I can't give you a formal license (legal paperwork) for it, but as long as it's non-commercial I can give you my personal blessing and guarantee that you won't get in trouble for using it :) If that's enough just feel free to use any of my tracks. Please credit the music properly though, and include a link to www.amethystium.com and www.am.mu (it's the same site right now, but the latter will be a label/music store site soon).
+Best regards,
+Øystein Ramfjord"
+
+Jordach:
+--dark_ambiance
+--eastern_feeling
+These sounds are used for the Mod for Minetest; Ambiance.
+The included sounds are http://creativecommons.org/licenses/by-nc-sa/3.0/ 
+Not Used:--mtest
+
+-----------Sound Lic:
+--Nightime Sound, Recorded by Mike Koenig, License: Attribution 3.0 http://soundbible.com/951-Nightime.html
+--Crickets At Night Sound, License: Attribution 3.0 | Recorded by Mike Koenig |http://soundbible.com/365-Crickets-At-Night.html
+
+--Medium Pack Of Wolves Howling, License: Public Domain | Recorded by fws.gov, http://soundbible.com/277-Medium-Pack-Of-Wolves-Howling.html
+
+--Horned Owl Sound, License: Attribution 3.0 | Recorded by Mike Koenig , http://soundbible.com/1851-Horned-Owl.html
+
+-- Single Water Droplet Sound, License: Attribution 3.0 | Recorded by Mike Koenig, http://soundbible.com/384-Single-Water-Droplet.html
+
+--HollowWind, Black Boe, Creative Commons 0 License, http://www.freesound.org/people/Black%20Boe/sounds/22331/
+
+--drippingwater*.ogg sounds: CC0, Dripping Water Mod, by kddekadenz, http://minetest.net/forum/viewtopic.php?id=1688
+
+--birdsongnl: the Attribution License, HerbertBoland, http://www.freesound.org/people/HerbertBoland/sounds/28312/  (end)
+
+--robin2:  Attribution License, reinsamba, http://www.freesound.org/people/reinsamba/sounds/32479/  (end)
+
+--scuba1*.ogg- digifishmusic, Attribution License, http://www.freesound.org/people/digifishmusic/sounds/45521/
+
+ComboWind uses:
+--wind-in-the-trees -Attribution License, laurent, http://www.freesound.org/people/laurent/sounds/16995/
+--drygrassInWind- Creative Commons 0 License, felix.blume, http://www.freesound.org/people/felix.blume/sounds/146436/
+
+--Splash: Attribution 3.0 | Recorded by BlastwaveFx.com, http://soundbible.com/546-Fish-Splashing.html
+
+--small_waterfall Attribution License, volivieri, http://www.freesound.org/people/volivieri/sounds/38390/
+
+--Lake_Waves_2*, Attribution License, Benboncan, http://www.freesound.org/people/Benboncan/sounds/67884/
+
+--water_swimming_splashing*, Attribution Noncommercial License, Robinhood76, http://www.freesound.org/people/Robinhood76/sounds/79657/
+
+--earth01a, Creative Commons 0 License., Halion , http://www.freesound.org/people/Halion/sounds/17785
+
+-- Beach, Public Domain,  blastwavefx's , http://www.freesfx.co.uk/info/eula/
+
+--seagull, Attribution Noncommercial License., hazure,  http://www.freesound.org/people/hazure/sounds/23707/,
+
+desert:
+coyote2, Attribution License, rogerforeman, http://www.freesound.org/people/rogerforeman/sounds/68068/
+http://www.freesound.org/people/Proxima4/sounds/104319/
+Desert Monolith.wav, Creative Commons 0 License, Proxima4, http://www.freesound.org/people/Proxima4/sounds/104319/
diff --git a/mods/world/ambience/sounds/bird1.ogg b/mods/world/ambience/sounds/bird1.ogg
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diff --git a/mods/world/ambience/sounds/bird2.ogg b/mods/world/ambience/sounds/bird2.ogg
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diff --git a/mods/world/ambience/sounds/craw.ogg b/mods/world/ambience/sounds/craw.ogg
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diff --git a/mods/world/ambience/sounds/cricket.ogg b/mods/world/ambience/sounds/cricket.ogg
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diff --git a/mods/world/ambience/sounds/desertwind.ogg b/mods/world/ambience/sounds/desertwind.ogg
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diff --git a/mods/world/ambience/sounds/drippingwater1.ogg b/mods/world/ambience/sounds/drippingwater1.ogg
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diff --git a/mods/world/ambience/sounds/drippingwater2.ogg b/mods/world/ambience/sounds/drippingwater2.ogg
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diff --git a/mods/world/ambience/sounds/hornedowl.ogg b/mods/world/ambience/sounds/hornedowl.ogg
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diff --git a/mods/world/ambience/sounds/lava.ogg b/mods/world/ambience/sounds/lava.ogg
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diff --git a/mods/world/ambience/sounds/robin.ogg b/mods/world/ambience/sounds/robin.ogg
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diff --git a/mods/world/ambience/sounds/scuba.ogg b/mods/world/ambience/sounds/scuba.ogg
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diff --git a/mods/world/ambience/sounds/seagull.ogg b/mods/world/ambience/sounds/seagull.ogg
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diff --git a/mods/world/ambience/sounds/swim_splashing.ogg b/mods/world/ambience/sounds/swim_splashing.ogg
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diff --git a/mods/world/ambience/sounds/waterfall.ogg b/mods/world/ambience/sounds/waterfall.ogg
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diff --git a/mods/world/ambience/sounds/wind.ogg b/mods/world/ambience/sounds/wind.ogg
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