I would second Terraria. I was extremly sceptical at first because it was a side scroller but damn its a lot of fun. it has tons of stuff in it like materials and recipes to find, NPC's, bosses, accessories etc and I find myself playing that a lot more than Valheim these days.

Its close enough to scratch the itch but at the same time different enough to make Valheim feel refreshing when you boot it up.