diff --git a/tungsten-sim.lua b/tungsten-sim.lua
new file mode 100644
index 0000000..2a2a27f
--- /dev/null
+++ b/tungsten-sim.lua
@@ -0,0 +1,27 @@
+
+-- -- For testing only
+-- local kept1 = false
+-- for name in pairs(data.raw["utility-constants"]["default"].main_menu_simulations) do
+--   if kept1 then
+--     data.raw["utility-constants"]["default"].main_menu_simulations[name] = nil
+--   end
+--   kept1 = true
+-- end
+
+if (not mods["bobplates"] and not mods["angelssmelting"]) then
+data.raw["utility-constants"]["default"].main_menu_simulations["tungsten-nozzle"] = {
+  checkboard = false,
+  save = "__bztungsten__/menu-simulations/tungsten-nozzle-sim.zip", length = 15*60,
+  init =
+  [[
+    local logo = game.surfaces.nauvis.find_entities_filtered{
+      name = "factorio-logo-11tiles", limit = 1}[1]
+    game.camera_position = {logo.position.x, logo.position.y+8}
+    game.camera_zoom = 1.5
+    game.tick_paused = false
+    game.surfaces.nauvis.daytime = 1
+  ]],
+  update = [[]]
+}
+end
+