Remark: This article describes the Bigfoot mentioned on a magazine cover in the intro video of Tomb Raider. For information on related or similar creatures, see Yeti or Sasquatches.
Title of Adventurer Magazine
A Bigfoot is a cryptozoological creature supposedly discovered by Lara Croft before her first classic adventure, Tomb Raider.
In the opening video of Tomb Raider, when Larson enters the cafe to hire Lara to help Natla find the Scion, he throws her an issue of the Adventurer! magazine. It is titled "Lara Stamps Out Bigfoot!!!". This is the only mention of Bigfoots in the whole game.
There are similar creatures in other Tomb Raider and Lara Croft Games; these are enemies that will attack Lara: