diff --git a/petz.lua b/petz.lua
index 8ed09b4..56f9438 100644
--- a/petz.lua
+++ b/petz.lua
@@ -2,6 +2,7 @@
 petz.settings.spawn_interval = math.huge
 
 local BASE_CHANCE = 300  -- one every 5 minutes
+local MAX_IN_AREA = 5
 
 local DAWN = 4500 / 24000
 local DUSK = 19500 / 24000
@@ -14,6 +15,7 @@ spawnit.register({
 	min_time_of_day = DUSK,
 	max_time_of_day = DAWN,
 	max_y = 5000,
+	max_in_area = MAX_IN_AREA,
 })
 
 spawnit.register({
@@ -23,6 +25,7 @@ spawnit.register({
 	on = { "any" },
 	min_y = -32,
 	max_y = 5000,
+	max_in_area = MAX_IN_AREA,
 })
 
 spawnit.register({
@@ -33,6 +36,7 @@ spawnit.register({
 	on = { "group:soil" },
 	min_y = -32,
 	max_y = 5000,
+	max_in_area = MAX_IN_AREA,
 })
 
 spawnit.register({
@@ -43,6 +47,7 @@ spawnit.register({
 	near = { "group:flower" },
 	min_y = -32,
 	max_y = 5000,
+	max_in_area = MAX_IN_AREA,
 })
 
 spawnit.register({
@@ -53,6 +58,7 @@ spawnit.register({
 	on = { "group:soil" },
 	min_y = -32,
 	max_y = 5000,
+	max_in_area = MAX_IN_AREA,
 })
 
 spawnit.register({
@@ -62,6 +68,7 @@ spawnit.register({
 	on = { "group:sand", "default:desert_sandstone", "default:sandstone" },
 	min_y = -32,
 	max_y = 5000,
+	max_in_area = MAX_IN_AREA,
 })
 
 spawnit.register({
@@ -71,6 +78,7 @@ spawnit.register({
 	on = { "default:dirt_with_rainforest_litter", "ethereal:jungle_dirt", "default:jungleleaves", "moretrees:jungletree_leaves_yellow", "moretrees:jungletree_leaves_red", "ethereal:palmleaves", "moretrees:date_palm_leaves", "moretrees:palm_leaves" },
 	min_y = -32,
 	max_y = 5000,
+	max_in_area = MAX_IN_AREA,
 })
 
 spawnit.register({
@@ -82,6 +90,7 @@ spawnit.register({
 	near = { "group:coral" },
 	min_y = -100,
 	max_y = 5000,
+	max_in_area = MAX_IN_AREA,
 })
 
 spawnit.register({
@@ -92,6 +101,7 @@ spawnit.register({
 	on = { "any" },
 	min_y = -100,
 	max_y = 5000,
+	max_in_area = MAX_IN_AREA,
 })
 
 spawnit.register({
@@ -101,6 +111,7 @@ spawnit.register({
 	on = { "group:soil", "group:water" },
 	min_y = -32,
 	max_y = 5000,
+	max_in_area = MAX_IN_AREA,
 })
 
 spawnit.register({
@@ -110,6 +121,7 @@ spawnit.register({
 	on = { "default:dirt_with_rainforest_litter","default:dirt_with_dry_grass","default:dry_dirt","default:dry_dirt_with_dry_grass","ethereal:dry_dirt","ethereal:jungle_dirt" },
 	min_y = -32,
 	max_y = 5000,
+	max_in_area = MAX_IN_AREA,
 })
 
 spawnit.register({
@@ -119,6 +131,7 @@ spawnit.register({
 	on = { "default:dirt_with_rainforest_litter","default:dirt_with_dry_grass","default:dry_dirt","default:dry_dirt_with_dry_grass","ethereal:dry_dirt","ethereal:jungle_dirt" },
 	min_y = -32,
 	max_y = 5000,
+	max_in_area = MAX_IN_AREA,
 })
 
 spawnit.register({
@@ -128,6 +141,7 @@ spawnit.register({
 	on = { "default:dirt_with_coniferous_litter","default:dirt_with_grass","default:dirt_with_dry_grass","default:dry_dirt","default:dry_dirt_with_dry_grass" },
 	min_y = -32,
 	max_y = 5000,
+	max_in_area = MAX_IN_AREA,
 })
 
 spawnit.register({
@@ -137,6 +151,7 @@ spawnit.register({
 	on = { "group:soil" },
 	min_y = -32,
 	max_y = 5000,
+	max_in_area = MAX_IN_AREA,
 })
 
 spawnit.register({
@@ -146,6 +161,7 @@ spawnit.register({
 	on = { "default:dirt_with_grass","default:default:dirt_with_rainforest_litter","ethereal:bamboo_dirt","ethereal:grove_dirt","ethereal:jungle_dirt","ethereal:prairie_dirt","woodsoils:grass_with_leaves_1","woodsoils:grass_with_leaves_2" },
 	min_y = -32,
 	max_y = 5000,
+	max_in_area = MAX_IN_AREA,
 })
 
 spawnit.register({
@@ -155,6 +171,7 @@ spawnit.register({
 	on = { "default:dirt_with_coniferous_litter","default:dirt_with_grass","default:dirt_with_dry_grass","default:dry_dirt","default:dry_dirt_with_dry_grass" },
 	min_y = -32,
 	max_y = 5000,
+	max_in_area = MAX_IN_AREA,
 })
 
 spawnit.register({
@@ -165,6 +182,7 @@ spawnit.register({
 	on = { "group:soil" },
 	min_y = -32,
 	max_y = 5000,
+	max_in_area = MAX_IN_AREA,
 })
 
 spawnit.register({
@@ -176,6 +194,7 @@ spawnit.register({
 	max_y = 5000,
 	min_player_distance = 12,
 	spawn_in_protected = false,
+	max_in_area = MAX_IN_AREA,
 })
 
 spawnit.register({
@@ -185,6 +204,7 @@ spawnit.register({
 	on = { "group:sand","default:desert_sandstone","default:sandstone" },
 	min_y = -32,
 	max_y = 5000,
+	max_in_area = MAX_IN_AREA,
 })
 
 spawnit.register({
@@ -194,6 +214,7 @@ spawnit.register({
 	on = { "group:soil" },
 	min_y = -32,
 	max_y = 5000,
+	max_in_area = MAX_IN_AREA,
 })
 
 spawnit.register({
@@ -203,6 +224,7 @@ spawnit.register({
 	on = { "group:soil" },
 	min_y = -32,
 	max_y = 5000,
+	max_in_area = MAX_IN_AREA,
 })
 
 spawnit.register({
@@ -213,6 +235,7 @@ spawnit.register({
 	on = { "group:soil" },
 	min_y = -32,
 	max_y = 5000,
+	max_in_area = MAX_IN_AREA,
 })
 
 spawnit.register({
@@ -224,6 +247,7 @@ spawnit.register({
 	max_y = 5000,
 	min_player_distance = 12,
 	spawn_in_protected = false,
+	max_in_area = MAX_IN_AREA,
 })
 
 spawnit.register({
@@ -235,6 +259,7 @@ spawnit.register({
 	max_y = 5000,
 	min_player_distance = 12,
 	spawn_in_protected = false,
+	max_in_area = MAX_IN_AREA,
 })
 
 spawnit.register({
@@ -244,6 +269,7 @@ spawnit.register({
 	on = { "any" },
 	min_y = -32,
 	max_y = 5000,
+	max_in_area = MAX_IN_AREA,
 })
 
 spawnit.register({
@@ -256,7 +282,8 @@ spawnit.register({
 	spawn_in_protected = false,
 	should_spawn = function()
 		return os.date("*t").month == 10
-	end
+	end,
+	max_in_area = MAX_IN_AREA,
 })
 
 spawnit.register({
@@ -266,6 +293,7 @@ spawnit.register({
 	on = { "ethereal:bamboo_dirt" },
 	min_y = -32,
 	max_y = 5000,
+	max_in_area = MAX_IN_AREA,
 })
 
 spawnit.register({
@@ -276,6 +304,7 @@ spawnit.register({
 	near = { "default:jungleleaves","moretrees:jungletree_leaves_yellow","moretrees:jungletree_leaves_red","ethereal:palmleaves","moretrees:date_palm_leaves","moretrees:palm_leaves" },
 	min_y = -32,
 	max_y = 5000,
+	max_in_area = MAX_IN_AREA,
 })
 
 spawnit.register({
@@ -286,6 +315,7 @@ spawnit.register({
 	on = { "default:snowblock","default:ice","default:dirt_with_snow","default:snow" },
 	min_y = -32,
 	max_y = 10,
+	max_in_area = MAX_IN_AREA,
 })
 
 spawnit.register({
@@ -295,6 +325,7 @@ spawnit.register({
 	on = { "any" },
 	min_y = -32,
 	max_y = 5000,
+	max_in_area = MAX_IN_AREA,
 })
 
 spawnit.register({
@@ -305,6 +336,7 @@ spawnit.register({
 	on = { "group:soil" },
 	min_y = -32,
 	max_y = 5000,
+	max_in_area = MAX_IN_AREA,
 })
 
 spawnit.register({
@@ -316,6 +348,7 @@ spawnit.register({
 	max_y = 5000,
 	min_player_distance = 12,
 	spawn_in_protected = false,
+	max_in_area = MAX_IN_AREA,
 })
 
 spawnit.register({
@@ -326,6 +359,7 @@ spawnit.register({
 	on = { "group:soil" },
 	min_y = -32,
 	max_y = 5000,
+	max_in_area = MAX_IN_AREA,
 })
 
 spawnit.register({
@@ -335,6 +369,7 @@ spawnit.register({
 	on = { "group:soil" },
 	min_y = -32,
 	max_y = 5000,
+	max_in_area = MAX_IN_AREA,
 })
 
 spawnit.register({
@@ -344,6 +379,7 @@ spawnit.register({
 	on = { "group:soil" },
 	min_y = -32,
 	max_y = 5000,
+	max_in_area = MAX_IN_AREA,
 })
 
 spawnit.register({
@@ -354,6 +390,7 @@ spawnit.register({
 	near = { "group:flower" },
 	min_y = -32,
 	max_y = 5000,
+	max_in_area = MAX_IN_AREA,
 })
 
 spawnit.register({
@@ -365,6 +402,7 @@ spawnit.register({
 	max_light = 10,
 	min_player_distance = 12,
 	spawn_in_protected = false,
+	max_in_area = MAX_IN_AREA,
 })
 
 spawnit.register({
@@ -378,7 +416,8 @@ spawnit.register({
 	spawn_in_protected = false,
 	should_spawn = function()
 		return os.date("*t").month == 12
-	end
+	end,
+	max_in_area = MAX_IN_AREA,
 })
 
 spawnit.register({
@@ -388,6 +427,7 @@ spawnit.register({
 	on = { "group:leaves" },
 	min_y = -32,
 	max_y = 5000,
+	max_in_area = MAX_IN_AREA,
 })
 
 spawnit.register({
@@ -399,6 +439,7 @@ spawnit.register({
 	max_y = 5000,
 	min_player_distance = 12,
 	spawn_in_protected = false,
+	max_in_area = MAX_IN_AREA,
 })
 
 spawnit.register({
@@ -409,6 +450,7 @@ spawnit.register({
 	on = { "group:leaves", "group:tree" },
 	min_y = -32,
 	max_y = 5000,
+	max_in_area = MAX_IN_AREA,
 })
 
 spawnit.register({
@@ -419,6 +461,7 @@ spawnit.register({
 	max_y = 5000,
 	min_player_distance = 12,
 	spawn_in_protected = false,
+	max_in_area = MAX_IN_AREA,
 })
 
 spawnit.register({
@@ -429,6 +472,7 @@ spawnit.register({
 	near = { "default:jungleleaves","moretrees:jungletree_leaves_yellow","moretrees:jungletree_leaves_red","ethereal:palmleaves","moretrees:date_palm_leaves","moretrees:palm_leaves" },
 	min_y = -32,
 	max_y = 5000,
+	max_in_area = MAX_IN_AREA,
 })
 
 spawnit.register({
@@ -439,6 +483,7 @@ spawnit.register({
 	near = { "group:coral" },
 	min_y = -32,
 	max_y = 5000,
+	max_in_area = MAX_IN_AREA,
 })
 
 spawnit.register({
@@ -448,6 +493,7 @@ spawnit.register({
 	on = { "any" },
 	min_y = -100,
 	max_y = 5000,
+	max_in_area = MAX_IN_AREA,
 })
 
 spawnit.register({
@@ -460,4 +506,5 @@ spawnit.register({
 	max_y = 5000,
 	min_player_distance = 12,
 	spawn_in_protected = false,
+	max_in_area = MAX_IN_AREA,
 })