I carried on with ARK after you guys left, right up til about two weeks ago. There is SO much more in it now. And a nice unofficial server with slightly tweaked rates makes solo play viable. I actually preferred it in the end, albeit with some friendly nearby tribes to team up with and trade with.
From my brief stint on Conan so far, ARK feels way more polished, as you'd expect. But Conan definitely feels like you need at least a couple of others to play with. I imagine it would suck balls trying to do it solo. I'm gonna stick with it though as I'm in a group of 6 or 7.