The singleplayer mode of Duck Game is a bunch of challenges, represented by arcade machines. You get two to start out, and completing all of the challenges on one of those two unlocks a third one.
However, there's a bunch of other arcade machines that I haven't been able to unlock so far (I got at least Silver on every challenge I have available). How do I unlock them all?
Best Answer
It's honestly difficult to say. Looking at this Steam Community discussion, it's difficult to tell the exact conditions required to unlock them.
One post there, though, describes in detail how they unlock.
What I would personally recommend is to try going through each unlocked arcade machine through a more systematic approach. Try reaching for gold/platinum in the earlier challenges before moving on to the next ones. From there, you may be able to unlock the rest of the arcade machines.