diff --git a/init.lua b/init.lua
new file mode 100644
index 0000000..ad7882f
--- /dev/null
+++ b/init.lua
@@ -0,0 +1,111 @@
+minetest.register_craftitem("envelopes:envelope_blank", {
+    description = "Blank Envelope",
+    inventory_image = "envelopes_envelope_blank.png",
+    on_use = function(itemstack, user, pointed_thing)
+        minetest.show_formspec(user:get_player_name(), "envelopes:input", 
+            "size[5.5,5.5]" ..
+            "field[2,0.5;3.5,1;addressee;Addressee;]" ..
+            "label[0,0;Write a letter]" ..
+            "textarea[0.5,1.5;5,3;text;Text;]" ..
+            "field[3,4.8;2.5,1;attn;Attn. (Optional);]" ..
+            "button_exit[0.25,4.5;2,1;exit;Seal]")
+        return itemstack
+    end
+})
+
+minetest.register_craftitem("envelopes:envelope_sealed", {
+    description = "Sealed Envelope",
+    inventory_image = "envelopes_envelope_sealed.png",
+    stack_max = 1,
+    groups = {not_in_creative_inventory = 1},
+    on_use = function(itemstack, user, pointed_thing)
+        meta = itemstack:get_meta()
+        if user:get_player_name() == meta:get_string("receiver") then
+            open_env = ItemStack("envelopes:envelope_opened")
+            open_meta = open_env:get_meta()
+            open_meta:set_string("sender", meta:get_string("sender"))
+            open_meta:set_string("receiver", meta:get_string("receiver"))
+            open_meta:set_string("text", meta:get_string("text"))
+            local desc = ("Opened Envelope\nTo: " .. meta:get_string("receiver") .. "\nFrom: " .. meta:get_string("sender"))
+            open_meta:set_string("description", desc)
+            if meta:get_string("attn") ~= "" then
+                open_meta:set_string("attn", meta:get_string("attn"))
+                desc = desc .. "\nAttn: " .. meta:get_string("attn")
+                open_meta:set_string("description", desc)
+            end
+            return open_env
+        end
+        minetest.chat_send_player(user:get_player_name(), "The seal can only be opened by the addressee!")
+        return itemstack
+    end
+})
+
+minetest.register_craftitem("envelopes:envelope_opened", {
+    description = "Opened Envelope",
+    inventory_image = "envelopes_envelope_opened.png",
+    stack_max = 1,
+    groups = {not_in_creative_inventory = 1},
+    on_use = function(itemstack, user, pointed_thing)
+        local meta = itemstack:get_meta()
+        local sender = meta:get_string("sender")
+        local receiver = meta:get_string("receiver")
+        local text = meta:get_string("text")
+        local attn = meta:get_string("attn") or ""
+        local form = 
+            "size[5,5]" ..
+            "label[0,0;A letter from " .. sender .. " to " .. receiver
+        if attn ~= "" then
+            form = form .. "\nAttn: " .. attn
+        end
+        form = form .. "\n" .. text .. "]" .. "button_exit[0,4;2,1;exit;Close]"
+        minetest.show_formspec(user:get_player_name(), "envelope:display", form)
+    end
+})
+
+minetest.register_on_player_receive_fields(function(player, formname, fields)
+    if formname ~= "envelopes:input" or not minetest.is_player(player) then
+        return false
+    end
+
+    if fields.addressee == "" or fields.addressee == nil or fields.text == "" or fields.text == nil then
+        minetest.chat_send_player(player:get_player_name(), "Please fill out all required fields.")
+        return true
+    end
+
+    local inv = player:get_inventory()
+    local letter = ItemStack('envelopes:envelope_sealed')
+    local blank = ItemStack('envelopes:envelope_blank')
+    local meta = letter:get_meta()
+
+    meta:set_string("sender", player:get_player_name())
+    meta:set_string("receiver", fields.addressee)
+    meta:set_string("text", fields.text)
+
+    local desc = ("Sealed Envelope\nTo: " .. fields.addressee .. "\nFrom: " .. player:get_player_name())
+    meta:set_string("description", desc)
+
+    if fields.attn ~= "" then
+        meta:set_string("attn", fields.attn)
+        desc = desc .. "\nAttn: " .. fields.attn
+        meta:set_string("description", desc)
+    end
+
+    if inv:room_for_item("main", letter) and inv:contains_item("main", blank) then
+        inv:add_item("main", letter)
+        inv:remove_item("main", blank)
+    else
+        minetest.chat_send_player(player:get_player_name(), "Unable to create letter! Check your inventory space.")
+    end
+
+    return true
+end)
+
+minetest.register_craft({
+    type = "shaped",
+    output = "envelopes:envelope_blank 1",
+    recipe = {
+        {"", "", ""},
+        {"default:paper", "default:paper", "default:paper"},
+        {"default:paper", "default:paper", "default:paper"}
+    }
+})
\ No newline at end of file
diff --git a/textures/envelopes_envelope_blank.png b/textures/envelopes_envelope_blank.png
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index 0000000..f50902b
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diff --git a/textures/envelopes_envelope_opened.png b/textures/envelopes_envelope_opened.png
new file mode 100644
index 0000000..0bcba5c
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diff --git a/textures/envelopes_envelope_sealed.png b/textures/envelopes_envelope_sealed.png
new file mode 100644
index 0000000..846f99f
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