Dear devs, any chance of Steam achievements added at a later date?

The Priest/Shaman blocking the chests at the top left needs 3 completed tasks in order for us to go through. You know what happens after 3 tasks being completed? THE GAME ENDS! What if there's crafting ingredients in the chests behind him? Lazy QA.

Hi. Is there a list where i can look which levels give me items for crafting artefacts? And where do i get runes? I thin i have done 100% but the game says me there is one leather missing for last upgrade of an artefact. And there is a missing rune. I cannot find them and i replayed maps to get everything....