Interesting idea, but I think it would work better if it had more structured puzzles. Maybe missions where you are tasked to craft progressively more difficlt things. As a freeform game it takes a bit too long to get anything done.
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The idea is to have a variety of recepies and things to do, not just a few tools and chests. Each of them would allow the player to either make themselves more comfortable (for example, portals, so that you don't have to walk too much) or more productive (e.g., tools which allow pushing multiple things at once or machinery which does the boring work for you). That way, there would be more progression at later stages of the game.