The Vault - Fallout Wiki

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The Vault - Fallout Wiki
The Vault - Fallout Wiki
Base ID0016938d
00163cf4 (radioactive)

Tumbleweeds are world objects in Fallout: New Vegas.


In Fallout: New Vegas, tumbleweeds appear as balls of wheat-colored weeds which roll around the Mojave Desert. Often they can get stuck on things, such as the buildings of Goodsprings.

Tumbleweeds always travel west which could imply that there is a slight westward breeze in the Mojave Wasteland.

A tumbleweed is very light, so shooting it will make it fly several feet. Because a shotgun shoots many pellets at once, even more for the sawed-off shotgun, shooting it with one will commonly send the tumbleweed flying into the sky so far that it usually disappears from sight before it can be seen landing.

If you jump on top of one (you might need to wedge it in between some props to do this) it strangely makes the same noise as walking on a metallic platform.


  • They are often called Wind-Brahmin by nightkin in random encounters.
  • Tumbleweeds have a script which makes them roll. This can be seen by moving it and watching it move.
  • Tumbleweeds can be picked up.

Behind the scenes

Icon cut content.pngThe following is based on Fallout New Vegas cut content and has not been confirmed by canon sources.
  • A radioactive version of the tumbleweed exists within the resources of Fallout: New Vegas, but remains unused. Identified as Radioactive Tumbleweed, it emits radiation similar to a glowing one, is classified as a creature, consequently moves under its own power, and can be killed.
  • These versions of the tumbleweed were cut due to the bugs they introduced (and ending up in weird places).[1]
  • The radioactive tumbleweeds were inspired by the tumbleweeds in Hanford, Washington, which would soak up radioactive elements in the ground water, dry up and blow away.[2]
  • The Fallout: New Vegas Official Game Guide Collector's Edition refers to these cut environmental dangers being at the Crescent Canyon,[3] and Mesquite Mountains Crater.[4]
Icon cut content.pngEnd of information based on Fallout New Vegas cut content.


  • Xbox 360Icon xbox360.png Occasionally tumbleweeds may be found frozen in place almost as if they were scenery, particularly around Novac. Just as before, jumping on top of them yields a metallic sound.



  1. JE Sawyer: "They wound up causing some terrible problems (though they weren't "really" enemies). I think the issue was that they were all marked as persistent references so they didn't cause some odd loading problems whilst they rolled around the wasteland, but that caused additional bugs. They wound up in some odd places, too. Apparently radioactive tumbleweeds are a real-life problem, too. They will absorb a surprisingly large amount of radiation and then just roll all over the place."
  2. Email from Sydney Wolfram to User:Kastera1000:
    -The radioactive tumbleweeds were inspired by the tumbleweeds in Hanford, Washington. (Basically what happened was that the tumbleweeds would soak up radioactive elements in the ground water, dry up and then blow around). We thought this was pretty cool for a Fallout game; however, the only way to have a radioactive effect on them was to make them a creature and because they would travel the wasteland and add to the entity count they had to be removed for consoles. We left Tumbly the Tumbleweed in the editor – we just didn’t have the heart to delete him."
  3. Fallout: New Vegas Official Game Guide Collector's Edition p.393: "[4.32] Crescent Canyon West
    [4.33] Crescent Canyon East
    The giant crescent canyon is a wonder of nature, and now a breeding ground for Golden Geckos. At the very southern edge of the Ivanpah Dry Lake [4.34], the western edge is close to an unmarked Radscorpion Burrow [4.S26]. Descend heading south, moving from west to east, and after the initial Gecko encounter, check the fallen vehicle for a Hollowed-Out Rock and Lottery Ticket. Progress further into the canyon, and the floor becomes wet with oozing radiation, and masses of strewn barrels. Even the tumbleweed is radioactive."
    (Fallout: New Vegas Official Game Guide Collector's Edition Tour of the Mojave Wasteland)
  4. Fallout: New Vegas Official Game Guide Collector's Edition p.388: "[4.19] Mesquite Mountains Crater
    In the eastern foothills west of the California Sunset Drive-in [4.18], there's a Mesquite Mountains Lean-To [4.S21] an some rather ominous flecks of irradiated matter emanating from the hills behind. This is the location of an ancient crater. There are Feral Ghouls here that remain ready to kill, as well as irradiated tumbleweed. Keep to the rocks and explore further to the west, and a strange two-level shack appears through the haze. This is Hell's Motel.

    Pass the fungal lower beds and enter the premises, and prepare to repel the advances of a Crazed Mister Handy. He's already put the knife to his erstwhile master Doctor Rotson, who's usually carrying Doctor's Bag on his corpse."
    (Fallout: New Vegas Official Game Guide Collector's Edition Tour of the Mojave Wasteland)