diff --git a/minetestforfun_game/mods/default/textures/default_furnace_fire_bg.png b/minetestforfun_game/mods/default/textures/default_furnace_fire_bg.png
index 091679ba..126204a3 100644
Binary files a/minetestforfun_game/mods/default/textures/default_furnace_fire_bg.png and b/minetestforfun_game/mods/default/textures/default_furnace_fire_bg.png differ
diff --git a/minetestforfun_game/mods/default/textures/default_furnace_fire_fg.png b/minetestforfun_game/mods/default/textures/default_furnace_fire_fg.png
index 7a126e32..63888f39 100644
Binary files a/minetestforfun_game/mods/default/textures/default_furnace_fire_fg.png and b/minetestforfun_game/mods/default/textures/default_furnace_fire_fg.png differ
diff --git a/minetestforfun_game/mods/stairs/init.lua b/minetestforfun_game/mods/stairs/init.lua
index 6734ef75..e966aecf 100644
--- a/minetestforfun_game/mods/stairs/init.lua
+++ b/minetestforfun_game/mods/stairs/init.lua
@@ -295,3 +295,17 @@ stairs.register_stair_and_slab("pinewood", "default:pinewood",
 	"Pinewood Stair",
 	"Pinewood Slab",
 	default.node_sound_wood_defaults())
+
+stairs.register_stair_and_slab("obsidian", "default:obsidian",
+		{cracky=1,level=2},
+		{"default_obsidian.png"},
+		"Obsidian Stair",
+		"Obsidian Slab",
+		default.node_sound_stone_defaults())
+
+stairs.register_stair_and_slab("obsidianbrick", "default:obsidianbrick",
+		{cracky=1,level=2},
+		{"default_obsidian_brick.png"},
+		"Obsidian Brick Stair",
+		"Obsidian Brick Slab",
+		default.node_sound_stone_defaults())