Amazing nice little game.
A bug happened to me , i found the second " 4 block space pop-up pillar" before opening the door . The door opened , and I did the puzzle , but when I had to exit , the door was closed and i had to restart from the last save. ( Hope my bad english is understandable).
I have a little suggestion , maybe the " hint cards" should be readable from the time you get them , till the end of the game.
Keep it up man , nice work.
You couldn't get out of the basement to collect all four suncubes? The basement door closes on you (should be AFTER you put all four suncubes on the table) to make sure you solve the first 4 block pillar and get a clue before you try the second... hmm, lemme check into it.
And RE: the hint cards. They are readable whenever you want... press TAB. There are instructions!! : )
Glad you liked it anyway, despite some undue extra effort... thanks!