diff --git a/settingtypes.txt b/settingtypes.txt
new file mode 100644
index 0000000..355750a
--- /dev/null
+++ b/settingtypes.txt
@@ -0,0 +1,6 @@
+# Sets possibility for spawn.
+sneaker_spawn_chance (Spawn chance) int 18000
+
+# Sets frequency of spawn chance.
+#    Default 1200 is equivalent to 20 minutes (60 * 40).
+sneaker_spawn_interval (Spawn interval) int 2400
diff --git a/spawn.lua b/spawn.lua
index b13bf17..c833f15 100644
--- a/spawn.lua
+++ b/spawn.lua
@@ -5,11 +5,14 @@ local time_min = 60
 local time_hr = time_min * 60
 local time_day = time_hr * 24
 
+local spawn_chance = tonumber(minetest.settings:get("sneaker_spawn_chance")) or 18000
+local spawn_interval = tonumber(minetest.settings:get("sneaker_spawn_interval")) or time_min * 40 -- Default interval is 40 minutes
+
 minetest.register_abm({
 	nodenames = {"default:dirt_with_grass","default:stone"},
 	neighbors = {"air"},
-	interval = time_min * 20, -- Run spawn function every 20 minutes
-	chance = 9000,
+	interval = spawn_interval,
+	chance = spawn_chance,
 	action = function(pos, node, _, active_object_count_wider)
 		if active_object_count_wider > 5 then
 			return