diff --git a/games/devtest/mods/testnodes/properties.lua b/games/devtest/mods/testnodes/properties.lua
index c51db810c..6271f0add 100644
--- a/games/devtest/mods/testnodes/properties.lua
+++ b/games/devtest/mods/testnodes/properties.lua
@@ -145,6 +145,10 @@ minetest.register_node("testnodes:nojump_walkable", {
 	tiles = {"testnodes_nojump_top.png"},
 })
 
+local climbable_nodebox = {
+	type = "regular",
+}
+
 -- Climbable up and down with jump and sneak keys
 minetest.register_node("testnodes:climbable", {
 	description = S("Climbable Node").."\n"..
@@ -156,8 +160,10 @@ minetest.register_node("testnodes:climbable", {
 	paramtype = "light",
 	sunlight_propagates = true,
 	is_ground_content = false,
-	tiles ={"testnodes_climbable_side.png"},
-	drawtype = "glasslike",
+	tiles = {"testnodes_climbable_top.png","testnodes_climbable_top.png","testnodes_climbable_side.png"},
+	use_texture_alpha = "clip",
+	drawtype = "nodebox",
+	node_box = climbable_nodebox,
 	groups = {dig_immediate=3},
 })
 
@@ -169,8 +175,39 @@ minetest.register_node("testnodes:climbable_nojump", {
 	walkable = false,
 
 	groups = {disable_jump=1, dig_immediate=3},
-	drawtype = "glasslike",
-	tiles ={"testnodes_climbable_nojump_side.png"},
+	drawtype = "nodebox",
+	node_box = climbable_nodebox,
+	tiles = {"testnodes_climbable_nojump_top.png","testnodes_climbable_nojump_top.png","testnodes_climbable_nojump_side.png"},
+	use_texture_alpha = "clip",
+	paramtype = "light",
+	sunlight_propagates = true,
+})
+
+
+minetest.register_node("testnodes:climbable_nodescend", {
+	description = S("Upwards-climbable Node"),
+	climbable = true,
+	walkable = false,
+
+	groups = {disable_descend=1, dig_immediate=3},
+	drawtype = "nodebox",
+	node_box = climbable_nodebox,
+	tiles = {"testnodes_climbable_nodescend_top.png","testnodes_climbable_nodescend_top.png","testnodes_climbable_nodescend_side.png"},
+	use_texture_alpha = "clip",
+	paramtype = "light",
+	sunlight_propagates = true,
+})
+
+minetest.register_node("testnodes:climbable_nodescend_nojump", {
+	description = S("Horizontal-only Climbable Node"),
+	climbable = true,
+	walkable = false,
+
+	groups = {disable_jump=1, disable_descend=1, dig_immediate=3},
+	drawtype = "nodebox",
+	node_box = climbable_nodebox,
+	tiles = {"testnodes_climbable_noclimb_top.png","testnodes_climbable_noclimb_top.png","testnodes_climbable_noclimb_side.png"},
+	use_texture_alpha = "clip",
 	paramtype = "light",
 	sunlight_propagates = true,
 })
@@ -198,7 +235,6 @@ minetest.register_node("testnodes:liquid_nojump", {
 	paramtype = "light",
 	pointable = false,
 	liquids_pointable = true,
-	buildable_to = true,
 	is_ground_content = false,
 	post_effect_color = {a = 70, r = 255, g = 0, b = 200},
 })
@@ -228,7 +264,6 @@ minetest.register_node("testnodes:liquidflowing_nojump", {
 	paramtype2 = "flowingliquid",
 	pointable = false,
 	liquids_pointable = true,
-	buildable_to = true,
 	is_ground_content = false,
 	post_effect_color = {a = 70, r = 255, g = 0, b = 200},
 })
@@ -293,7 +328,60 @@ minetest.register_node("testnodes:liquidflowing_noswim", {
 	post_effect_color = {a = 70, r = 255, g = 200, b = 200},
 })
 
+-- A liquid in which you can't actively descend.
+-- Note: You'll still descend slowly by doing nothing.
+minetest.register_node("testnodes:liquid_nodescend", {
+	description = S("No-descending Liquid Source Node"),
+	liquidtype = "source",
+	liquid_range = 0,
+	liquid_viscosity = 0,
+	liquid_alternative_flowing = "testnodes:liquidflowing_nodescend",
+	liquid_alternative_source = "testnodes:liquid_nodescend",
+	liquid_renewable = false,
+	groups = {disable_descend=1, dig_immediate=3},
+	walkable = false,
 
+	drawtype = "liquid",
+	tiles = {"testnodes_liquidsource.png^[colorize:#FFFF00:127"},
+	special_tiles = {
+		{name = "testnodes_liquidsource.png^[colorize:#FFFF00:127", backface_culling = false},
+		{name = "testnodes_liquidsource.png^[colorize:#FFFF00:127", backface_culling = true},
+	},
+	use_texture_alpha = "blend",
+	paramtype = "light",
+	pointable = false,
+	liquids_pointable = true,
+	is_ground_content = false,
+	post_effect_color = {a = 70, r = 255, g = 255, b = 200},
+})
+
+-- A liquid in which you can't actively descend (flowing variant)
+minetest.register_node("testnodes:liquidflowing_nodescend", {
+	description = S("No-descending Flowing Liquid Node"),
+	liquidtype = "flowing",
+	liquid_range = 1,
+	liquid_viscosity = 0,
+	liquid_alternative_flowing = "testnodes:liquidflowing_nodescend",
+	liquid_alternative_source = "testnodes:liquid_nodescend",
+	liquid_renewable = false,
+	groups = {disable_descend=1, dig_immediate=3},
+	walkable = false,
+
+
+	drawtype = "flowingliquid",
+	tiles = {"testnodes_liquidflowing.png^[colorize:#FFFF00:127"},
+	special_tiles = {
+		{name = "testnodes_liquidflowing.png^[colorize:#FFFF00:127", backface_culling = false},
+		{name = "testnodes_liquidflowing.png^[colorize:#FFFF00:127", backface_culling = false},
+	},
+	use_texture_alpha = "blend",
+	paramtype = "light",
+	paramtype2 = "flowingliquid",
+	pointable = false,
+	liquids_pointable = true,
+	is_ground_content = false,
+	post_effect_color = {a = 70, r = 255, g = 255, b = 200},
+})
 
 -- Nodes that modify fall damage (various damage modifiers)
 for i=-100, 100, 25 do
@@ -430,10 +518,11 @@ minetest.register_node("testnodes:climbable_move_resistance_4", {
 	climbable = true,
 	move_resistance = 4,
 
-	drawtype = "glasslike",
+	drawtype = "nodebox",
 	paramtype = "light",
 	sunlight_propagates = true,
-	tiles = {"testnodes_climbable_resistance_side.png"},
+	tiles = {"testnodes_climbable_top.png","testnodes_climbable_top.png","testnodes_climbable_resistance_side.png"},
+	use_texture_alpha = "clip",
 	is_ground_content = false,
 	groups = { dig_immediate = 3 },
 })
diff --git a/games/devtest/mods/testnodes/textures/testnodes_climbable_noclimb_side.png b/games/devtest/mods/testnodes/textures/testnodes_climbable_noclimb_side.png
new file mode 100644
index 000000000..899f6c355
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diff --git a/games/devtest/mods/testnodes/textures/testnodes_climbable_noclimb_top.png b/games/devtest/mods/testnodes/textures/testnodes_climbable_noclimb_top.png
new file mode 100644
index 000000000..f202b576b
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diff --git a/games/devtest/mods/testnodes/textures/testnodes_climbable_nodescend_side.png b/games/devtest/mods/testnodes/textures/testnodes_climbable_nodescend_side.png
new file mode 100644
index 000000000..d749e506f
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diff --git a/games/devtest/mods/testnodes/textures/testnodes_climbable_nodescend_top.png b/games/devtest/mods/testnodes/textures/testnodes_climbable_nodescend_top.png
new file mode 100644
index 000000000..17708cfa2
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diff --git a/games/devtest/mods/testnodes/textures/testnodes_climbable_nojump_top.png b/games/devtest/mods/testnodes/textures/testnodes_climbable_nojump_top.png
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index 000000000..160c8b730
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diff --git a/games/devtest/mods/testnodes/textures/testnodes_climbable_top.png b/games/devtest/mods/testnodes/textures/testnodes_climbable_top.png
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