This is cool, but I'm having trouble with the door glitches. I'm not interested in brute forcing 1024 possibilities on the 0/5 door. I like the puzzle, but wish it was more stable. The art styles clash a little. I think for the UI sprites, you probably want to model the item with the same low poly as the world, then make an image from that. I like the theme incorporation. The alien environment is great - I can see a lot of modelling went into that with various background items. Very cool stuff, wish the bugs let me finish it.