I played a game like this a long time ago featuring a black and white isometric map and a cursor. You had some sort of limited amount of time before your mouse died, then you'd be back at the start, but your previous life would go about and do the same things. I forgot exactly what it was, but it was quite like this (although more rudimentary and a bit less fun).
I don't know that game, I'll try to search it and give it a try.
I couldn't really figure out the puzzle where you apparently need to duplicate a tube, and it felt like I was cheating on the closing doors one. (I had a clone deposit the tube in front of the door, I waited for it to show up and the doors closed ON me, but I could move around in them (some sort of clipping bug, I guess))
Yes, there are collision bugs with the moving objects, such as those doors. Once fixed, they'll either push you one side or the other, but you won't be able to stand inside them.
Thanks for playing it!