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The Chasmosaurus is an animal companion that can be recruited at villages in the Prehistoric biome. It is a mount and can also use combat dice, if upgraded through the Animal Whisperer perk held by the explorer Alexandra David-Neel.


lvl Dice Toughness Capacity
1 Only if mounted 16 Icon - Cargo.pngIcon - Cargo.pngIcon - Cargo.pngIcon - Cargo.pngIcon - Cargo.pngIcon - Cargo.png
2 Chasmosaurus-1.png 19
3 Chasmosaurus-2.png 22
4 25


  • Animal: Has no perks and can only be promoted through Alexandra David-Neel's Animal Whisperer perk.
  • Mount: Can be ridden to reduce the base sanity cost of travel. When mounted, gains an additional level 2 combat die and the Slow Mount perk at the cost of -2 total Cargo Capacity.
    • Combat dice given when mounting can not be used while over-encumbered.
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