We need more games like this :)

Doors: Paradox is the predecessor of Boxes by about 2 years. This is an important fact as if you play Boxes 1st and then Doors: Paradox you will probably feel a bit disappointed as I did. Doors: Paradox does show it’s an early game with the not as tight zoom and lack of indications for many interactions in the game. Some parts are better, it’s nice clicking on a key to spin it in Doors: Paradox vs having to spin the key in Boxes. I found myself many times just clicking around to find zoomed in areas for interaction as it wasn’t apparent as it is in Boxes. I also got frustrated as dragging items in the inventory to the use location can be a bit unforgiving too.
You need to find all the blue and red gems to unlock the final 2 doors per chapter, this adds an extra element of having to click or look around the levels to find them.
Even with my gripes it’s still a good game, I would just suggest playing this one either before Boxes (the successor) or after you have time to process after finishing Boxes. If you do both back to back you may have some whiplash which may affect your experience.

very fun little puzzle game, and if your suck its got LOTS of clues!