I played the demo for Nova Lands (then called Nova Islands?) in the recent Steam fest and loved it. They put a lot of care and attention into that; even making a specific quest for the demo to let you finish something (which isn't in the full game). It's very similar to Forager in many ways, but with a little more emphasis on factory building. You produce resources, turn them into other resources, and build up and up until you've got (very simple) supply chains making computers. Each time you discover a new island there's something interesting to do, and it's full of animal and alien NPCs that give you quests. It lacks the proper tools for a scalable factory game, but is great fun.