"Wenja language" - language made specially for this game which makes this game even cooler and more engaging.
From Wiki -
The characters speak a fictional language with a defined syntax and structure. It is based on the reconstructed Proto-Indo-European language which is the theorized common ancestor of most modern European languages and some languages in Asia and the Middle East. Linguists constructed three dialects - Wenja, Udam and Izila - one for each of the three featured tribes. Each dialect was designed to have a distinct sound conveying the culture of its tribe. Lead writer Kevin Shortt said that players are able to understand Wenja vocabulary, and finish the game with "a real sense of it".
