diff --git a/df_mapitems/ground_cover.lua b/df_mapitems/ground_cover.lua
index 94596ea..fe7693c 100644
--- a/df_mapitems/ground_cover.lua
+++ b/df_mapitems/ground_cover.lua
@@ -45,7 +45,7 @@ minetest.register_node("df_mapitems:dirt_with_cave_moss", {
 	is_ground_content = false,
 	light_source = 2,
 	paramtype = "light",
-	groups = {crumbly = 3, soil = 1, light_sensitive_fungus = 8, handy=1,shovely=1,dirt=2, soil_sapling=2, soil_sugarcane=1, cultivatable=1, enderman_takable=1, building_block=1, compostability=30},
+	groups = {crumbly = 3, soil = 1, light_sensitive_fungus = 8, handy=1,shovely=1,dirt=2, soil_sapling=2, soil_sugarcane=1, cultivatable=1, enderman_takable=1, building_block=1, compostability=30, opaque=1},
 	sounds = df_dependencies.sound_dirt({footstep = {name = df_dependencies.soundfile_grass_footstep, gain = 0.25},}),
 	soil = {
 		base = "df_mapitems:dirt_with_cave_moss",
@@ -73,7 +73,7 @@ minetest.register_node("df_mapitems:sand_scum", {
 	is_ground_content = false,
 	light_source = 2,
 	paramtype = "light",
-	groups = {crumbly = 3, soil = 1, light_sensitive_fungus = 8, handy=1,shovely=1, falling_node=1, sand=1, soil_sugarcane=1, enderman_takable=1, building_block=1, material_sand=1},
+	groups = {crumbly = 3, soil = 1, light_sensitive_fungus = 8, handy=1,shovely=1, falling_node=1, sand=1, soil_sugarcane=1, enderman_takable=1, building_block=1, material_sand=1, opaque=1},
 	sounds = df_dependencies.sound_sand({footstep = {name = "dfcaverns_squish", gain = 0.25},}),
 	_dfcaverns_dead_node = sand_node,
 	_mcl_blast_resistance = 0.5,
@@ -96,7 +96,7 @@ minetest.register_node("df_mapitems:dirt_with_pebble_fungus", {
 	is_ground_content = false,
 	light_source = 2,
 	paramtype = "light",
-	groups = {crumbly = 3, soil = 1, light_sensitive_fungus = 8, handy=1,shovely=1,dirt=2, soil_sapling=2, soil_sugarcane=1, cultivatable=1, enderman_takable=1, building_block=1, compostability=30},
+	groups = {crumbly = 3, soil = 1, light_sensitive_fungus = 8, handy=1,shovely=1,dirt=2, soil_sapling=2, soil_sugarcane=1, cultivatable=1, enderman_takable=1, building_block=1, compostability=30, opaque=1},
 	sounds = df_dependencies.sound_dirt(),
 	soil = {
 		base = "df_mapitems:dirt_with_pebble_fungus",
@@ -124,7 +124,7 @@ minetest.register_node("df_mapitems:dirt_with_stillworm", {
 	is_ground_content = false,
 	light_source = 2,
 	paramtype = "light",
-	groups = {crumbly = 3, soil = 1, light_sensitive_fungus = 8, handy=1,shovely=1,dirt=2, soil_sapling=2, soil_sugarcane=1, cultivatable=1, enderman_takable=1, building_block=1, compostability=30},
+	groups = {crumbly = 3, soil = 1, light_sensitive_fungus = 8, handy=1,shovely=1,dirt=2, soil_sapling=2, soil_sugarcane=1, cultivatable=1, enderman_takable=1, building_block=1, compostability=30, opaque=1},
 	sounds = df_dependencies.sound_dirt({footstep = {name = df_dependencies.soundfile_grass_footstep, gain = 0.25},}),
 	soil = {
 		base = "df_mapitems:dirt_with_stillworm",
@@ -149,7 +149,7 @@ minetest.register_node("df_mapitems:spongestone", {
 	drop = dirt_node,
 	is_ground_content = false,
 	paramtype = "light",
-	groups = {crumbly = 3, soil = 1, light_sensitive_fungus = 8, shovely=1,dirt=2, enderman_takable=1, building_block=1, compostability=10},
+	groups = {crumbly = 3, soil = 1, light_sensitive_fungus = 8, shovely=1,dirt=2, enderman_takable=1, building_block=1, compostability=10, opaque=1},
 	sounds = df_dependencies.sound_dirt(),
 	soil = {
 		base = "df_mapitems:spongestone",
@@ -172,7 +172,7 @@ minetest.register_node("df_mapitems:rock_rot", {
 	is_ground_content = false,
 	light_source = 2,
 	paramtype = "light",
-	groups = {crumbly = 3, soil = 1, light_sensitive_fungus = 8, shovely=1,dirt=2, enderman_takable=1, building_block=1, compostability=5},
+	groups = {crumbly = 3, soil = 1, light_sensitive_fungus = 8, shovely=1,dirt=2, enderman_takable=1, building_block=1, compostability=5, opaque=1},
 	sounds = df_dependencies.sound_dirt(),
 	_dfcaverns_dead_node = stone_node,
 	_mcl_blast_resistance = 3,
@@ -193,9 +193,9 @@ minetest.register_node("df_mapitems:cobble_with_floor_fungus", {
 	_doc_items_usagehelp = df_mapitems.doc.floor_fungus_usage,
 	tiles = {df_dependencies.texture_cobble .. "^dfcaverns_floor_fungus.png"},
 	drop = cobble_node,
-	is_ground_content = false,
 	paramtype = "light",
-	groups = {cracky = 3, stone = 2, slippery = 1, light_sensitive_fungus = 8, df_caverns_floor_fungus = 1, pickaxey=1, building_block=1, material_stone=1},
+	is_ground_content = false,
+	groups = {cracky = 3, stone = 2, slippery = 1, light_sensitive_fungus = 8, df_caverns_floor_fungus = 1, pickaxey=1, building_block=1, material_stone=1, opaque=1},
 	_dfcaverns_dead_node = df_dependencies.node_name_cobble,
 	sounds = df_dependencies.sound_stone({footstep = {name = "dfcaverns_squish", gain = 0.25},}),
 	_mcl_blast_resistance = 6,
@@ -210,9 +210,9 @@ minetest.register_node("df_mapitems:cobble_with_floor_fungus_fine", {
 	drop = cobble_node,
 	is_ground_content = false,
 	paramtype = "light",
-	groups = {cracky = 3, stone = 2, slippery = 1, light_sensitive_fungus = 8, df_caverns_floor_fungus = 1, pickaxey=1, building_block=1, material_stone=1},
+	groups = {cracky = 3, stone = 2, slippery = 1, light_sensitive_fungus = 8, df_caverns_floor_fungus = 1, pickaxey=1, building_block=1, material_stone=1, opaque=1},
 	_dfcaverns_dead_node = df_dependencies.node_name_cobble,
-	df_dependencies.sound_stone({footstep = {name = "dfcaverns_squish", gain = 0.25},}),
+	sounds = df_dependencies.sound_stone({footstep = {name = "dfcaverns_squish", gain = 0.25},}),
 	_mcl_blast_resistance = 6,
 	_mcl_hardness = 1.5,
 	on_timer = function(pos, elapsed)
@@ -253,7 +253,7 @@ minetest.register_node("df_mapitems:ice_with_hoar_moss", {
 	paramtype = "light",
 	light_source = 2,
 	is_ground_content = false,
-	groups = {cracky = 3, puts_out_fire = 1, cools_lava = 1, slippery = 2, light_sensitive_fungus = 8, handy=1,pickaxey=1, building_block=1, ice=1},
+	groups = {cracky = 3, puts_out_fire = 1, cools_lava = 1, slippery = 2, light_sensitive_fungus = 8, handy=1,pickaxey=1, building_block=1, ice=1, opaque=1},
 	sounds = df_dependencies.sound_glass(),
 	_dfcaverns_dead_node = df_dependencies.node_name_ice,
 	_mcl_blast_resistance = 0.5,
diff --git a/df_primordial_items/fungal_nodes.lua b/df_primordial_items/fungal_nodes.lua
index 6d0994f..36eded9 100644
--- a/df_primordial_items/fungal_nodes.lua
+++ b/df_primordial_items/fungal_nodes.lua
@@ -137,7 +137,7 @@ minetest.register_node("df_primordial_items:dirt_with_mycelium", {
 	_doc_items_longdesc = df_primordial_items.doc.dirt_with_mycelium_desc,
 	_doc_items_usagehelp = df_primordial_items.doc.dirt_with_mycelium_usage,
 	tiles = {"dfcaverns_mush_soil.png"},
-	groups = {crumbly = 3, soil = 1, light_sensitive_fungus = 13, handy=1,shovely=1, dirt=2, building_block=1},
+	groups = {crumbly = 3, soil = 1, light_sensitive_fungus = 13, handy=1,shovely=1, dirt=2, building_block=1, opaque=1},
 	_dfcaverns_dead_node = df_dependencies.node_name_dirt,
 	is_ground_content = false,
 	paramtype = "light",
diff --git a/df_primordial_items/jungle_nodes.lua b/df_primordial_items/jungle_nodes.lua
index 40caab1..17df763 100644
--- a/df_primordial_items/jungle_nodes.lua
+++ b/df_primordial_items/jungle_nodes.lua
@@ -294,7 +294,7 @@ minetest.register_node("df_primordial_items:dirt_with_jungle_grass", {
 	_doc_items_usagehelp = df_primordial_items.doc.dirt_with_jungle_grass_usage,
 	tiles = {"dfcaverns_jungle_plant_grass_node_01.png"},
 	paramtype = "light",
-	groups = {crumbly = 3, soil = 1, light_sensitive_fungus = 13, handy=1,shovely=1, dirt=2, building_block=1},
+	groups = {crumbly = 3, soil = 1, light_sensitive_fungus = 13, handy=1,shovely=1, dirt=2, building_block=1, opaque=1},
 	_dfcaverns_dead_node = df_dependencies.node_name_dirt,
 	is_ground_content = false,
 	drop = df_dependencies.node_name_dirt,
@@ -324,7 +324,6 @@ minetest.register_node("df_primordial_items:plant_matter", {
 	_doc_items_usagehelp = df_primordial_items.doc.plant_matter_usage,
 	tiles = {"dfcaverns_jungle_plant_matter_01.png"},
 	is_ground_content = false,
-	paramtype = "light",
 	groups = {crumbly = 3, soil = 1, flammable = 1, handy=1,shovely=1, dirt=2, building_block=1, fire_encouragement=1, fire_flammability=1},
 	sounds = df_dependencies.sound_dirt(),
 	on_timer = function(pos, elapsed)