diff --git a/worldgen.lua b/worldgen.lua
new file mode 100644
index 0000000..8963b03
--- /dev/null
+++ b/worldgen.lua
@@ -0,0 +1,70 @@
+local minbiomey = 250
+local maxbiomey = 1000
+local seed = 555
+minetest.register_on_generated(function(minp, maxp, blockseed)
+--120 bottom of clouds
+
+if minp.y >= minbiomey and maxp.y <= maxbiomey then
+
+	--the () is the line in api doc
+	--1 seed (2565) 2 octaves (2580) 3 persistance (2596) scale (2524)
+	local perlin = PerlinNoise(seed, 3, 1, 100) --3,10,50 for crazy caves -- 3, 1, 100 for floating islands
+
+	local height = snowrange_height
+	local air = minetest.get_content_id("air")
+	local dirt = minetest.get_content_id("aether2:aether_dirt")
+	local stone = minetest.get_content_id("aether2:holystone")
+	local water = minetest.get_content_id("default:water_source")
+	local diamond = minetest.get_content_id("default:diamondblock")
+	local grass = minetest.get_content_id("aether2:aether_dirt_with_grass")
+
+	local min = minp
+	local max = {x=maxp.x,y=maxp.y+1,z=maxp.z}
+	local vm = minetest.get_voxel_manip()
+	local emin, emax = vm:read_from_map(min,max)
+	local area = VoxelArea:new{MinEdge=emin, MaxEdge=emax}
+	local data = vm:get_data()
+	local content_id = minetest.get_name_from_content_id
+
+	for x=minp.x, maxp.x do
+	for y=minp.y, maxp.y do
+	for z=minp.z, maxp.z do
+		local p_pos = area:index(x,y,z)
+		local p_pos_above = area:index(x,y+1,z)
+		local p_pos_below = area:index(x,y-1,z)
+		local p_pos_deco = area:index(x,y+2,z)
+		local testerer = perlin:get3d({x=x,y=y,z=z})
+		if testerer > 0.8 then
+			--print(tester)
+			data[p_pos] = stone --this makes the snow adapt to the environment
+			data[p_pos_above] =grass -- diamond grass
+			--could use to make grass
+			if testerer >0.85 then
+				data[p_pos_deco] = diamond
+			end
+			--  elseif p_pos_below and content_id(p_pos_below) == "aether:heavenly_stone" then
+			--    data[p_pos] = grass
+		end
+		end
+		end
+		end
+
+		vm:set_data(data)
+		vm:write_to_map()
+
+  end
+
+end)
+
+minetest.register_decoration({
+	deco_type = "simple",
+	place_on = "aether2:holystone",
+	--sidelen = 8,
+	fill_ratio = 10,
+	--biomes = {"grassland"},
+	decoration = "aether2:aether_dirt_with_grass",
+  y_min = -31000,
+  y_max = 31000,
+  height = 1,
+  --flags = "force_placement",
+})