Eric will head in about the opposite direction as the building had been, offset by a slight angle to avoid predictability. He'll want to make it to the ocean soon, where he can travel without being attacked by monsters, and fish for food. But he'll travel on land whenever that's the most direct route to escape.

Did he know that if he steps in snow that is too deep, he starts to sink into it and is overwhelmed with freezing jolts of pain? He does now!

He will travel in a slightly different slightly different angle!

Wait! Before he keeps going, does he want to stop and take a look at whatever this is?

...fine.

Bad idea!

Baaaaaaaaaack on the trail then!

How's he going to handle night time? Just hide in a hole again?

No, he's already given the hunters too much time to catch up. He's going to try to fight past the monsters, by which he means "run past".

There's deep snow in front of him and spiders behind him! Where is he going to run?

...to the leeeefft!

There's snow on the left!

Then you can probably guess where he's going!

He'll go through a jungle and find a river, but along the river is yet another one of the structures with the black half-rectangles.

Seriously? They've made it to here too? Or is it someone other than the grey hunters; maybe another group? He thinks back to the person who had thrown bottles of liquid at him in the cave; maybe there are multiple structure-building species here. But whoever it is, what's the point in building these things?

He'll loot the chest and keep travelling along the river.

The chest includes a strange object made out of gold, as well as a white rock and a black rock, which for some reason form only a single item.

He's going to have some trouble with that "travelling along the river" thing, though.

He's... a little more concerned about whether the zombies are sentient, now. Although they're clearly not too smart.

Run on foot! He can craft a new boat later!

Once he makes it to the ocean with a new boat, he'll pass over this underwater structure.

He really wants to explore it, but he will resist the urge and keep sailing.

He'll make it to a strange sort of desert with a new type of zombies.

It seems to have manmade tunnels, too!

It doesn't take long for him to run out of food. It's daytime and the monsters seem to be gone, so he should probably take a break to fish.

All right. But he'll be watching his back.

Did you know that it is not safe to eat raw pufferfish?

He sure fucking does now.

He'll also catch a little piece of wood with string tied to it, as well as a bow with magic powers?