diff --git a/.gitmodules b/.gitmodules
index 27c2f62e..b4ca6f29 100644
--- a/.gitmodules
+++ b/.gitmodules
@@ -122,3 +122,6 @@
 [submodule "mods/city_block"]
 	path = mods/city_block
 	url = https://github.com/minetest-mods/city_block
+[submodule "mods/glow"]
+	path = mods/glow
+	url = https://github.com/bdjnk/glow
diff --git a/mods/glow b/mods/glow
new file mode 160000
index 00000000..30f9cf37
--- /dev/null
+++ b/mods/glow
@@ -0,0 +1 @@
+Subproject commit 30f9cf3752198250e1e4c628631b4a21ccdcd5b1
diff --git a/mods/player_spam/depends.txt b/mods/player_spam/depends.txt
deleted file mode 100644
index 4ad96d51..00000000
--- a/mods/player_spam/depends.txt
+++ /dev/null
@@ -1 +0,0 @@
-default
diff --git a/mods/player_spam/init.lua b/mods/player_spam/init.lua
deleted file mode 100644
index 35f33161..00000000
--- a/mods/player_spam/init.lua
+++ /dev/null
@@ -1,91 +0,0 @@
--- Untested mod to prevent from chat flood
--- Allows players to send 4 messages in 2s when a silence of >= 2s follows
--- Created by Krock <mk939@ymail.com> - 2016
--- License: BSD 3-Clause
--- ALL YOUR BUG REPORT ARE BELONG TO ME
-
-
-local player_spam = {}
-local CHAR_REPEAT_MAX = 4
-
-minetest.register_on_chat_message(function(name, msg)
-	if msg == "" or msg:sub(1, 1) == '/' then
-		return
-	end
-	if not minetest.check_player_privs(name, {shout = true}) then
-		minetest.chat_send_player(name, "You can not chat. Missing privilege: shout")
-		return true
-	end
-
-	local count_as_messages = math.max(1, math.min(msg:len() / 100, 5))
-    player_spam[name] = (player_spam[name] or 0) + math.floor(count_as_messages + 0.5) 
-
-    if player_spam[name] > 5 then
-        minetest.kick_player(name, "You spammer you!")
-        return true
-    end
-    if player_spam[name] > 3 then
-        -- A message per second maximal
-        minetest.chat_send_player(name, "Your message was not sent due to flood detection. "..
-				"Please try again in some seconds.")
-        return true
-    end
-
-    local new_msg = ""
-    local last_char
-    local same_char_count = 0
-
-    -- Prevent from repetive characters
-    for c in msg:gmatch(".") do
-		if c:byte() < 0x20 then
-			c = ' '
-		end
-        if last_char == c:lower() then
-            same_char_count = same_char_count + 1
-        else
-            last_char = c:lower()
-            same_char_count = 0
-        end
-
-        if same_char_count < CHAR_REPEAT_MAX then
-            new_msg = new_msg .. c
-        end
-    end
-	if new_msg == msg then
-		return -- Nothing to replace (message ok)
-	end
-	
-    for i, player in pairs(minetest.get_connected_players()) do
-        local player_name = player:get_player_name()
-        if player_name ~= name then
-            minetest.chat_send_player(player_name, "<"..name.."> " .. new_msg)
-        end
-    end
-    --if new_msg:len() < msg:len() then
-    --    minetest.chat_send_player(name, "Your message was shortened a bit to prevent from spam.")
-    --end
-    return true
-end)
-
-local timed = 0
--- 1 message per second, decrease message count by X all X seconds
-local CHECK_COUNT = 2
-minetest.register_globalstep(function(dtime)
-    timed = timed + dtime
-    if timed < CHECK_COUNT then
-        return
-    end
-    timed = 0
-
-    for i, player in pairs(minetest.get_connected_players()) do
-        local player_name = player:get_player_name()
-        local num = player_spam[player_name]
-        if num and num > 0 then
-            player_spam[player_name] = math.max(0, num - CHECK_COUNT)
-        end
-    end
-end)
-
-minetest.register_on_leaveplayer(function(player)
-    player_spam[player:get_player_name()] = nil
-end)
\ No newline at end of file