Ark Eternal adds 600+ new dinos at its current state, most of them can be tamed in different ways. Some of them can be evolved from creature A to creature B. Eternal has around 30 bosses so far, some rather easy and some almost impossible to kill. It adds more difficulty and diversity.
Eternal is a Core Mod, overhauling many of Ark’s core features . It is also designed with PvE in mind, and is balanced for vanilla difficulty and max Dino level 600 wild.