I will just trust this studio with everything. Amanita, no need to say more. It's gorgeous. I like that it's "casual". I am thankful for them always bringing their games/art on GOG.
About the achievements, maybe it has an inner system of achievements like in Pilgrims, that doesn't need Galaxy support, or they forgot to mention? A lack of achievents could be disappointing as I bet they could come up with creative ones, but I'd rather support GOG in any case.
Alexim: Why Creaks is without achievements since Pilgrims had them? Why this involution of Amanita?
Pilgrims as I was saying has achievements in game and not in the integration with the launcher. Maybe this is the case again. Let's wait or ask.