We spent a chunk of the weekend--okay, okay, all day Sunday-- playing Myth of Empires. This is an early-access open-world survival crafting base-building sandbox game, which is my jam.
It's definitely in the ARK family. I mean, here are David's horses mating. (Sorry about the dark screenshot. The hilarity happened during the in-game night.)
The UX is an unfinished mess with hilarious machine translation everywhere, but the meat of the game is solid. If you like this sort of thing, you'll like MoE.
If you aren't sure it's your jam, here's ESO's livestream from character creation on: https://www.youtube.com/watch?v=r7-2eCnyx-E
There's also a major social component with guilds + alliances and some large, difficult PvE goals, as well as straight-up full-loot PVP on (optional) pvp servers. The overall goal is empire-building and territory conquest.