Puzzle games that DON'T rate levels out of three stars?

[MidianGTX]

I'm getting kinda bored of feeling I have to go back and perform even better next time. I know it's not often forced, but it seems to happen so much in iOS games these days and I'm looking forward to a puzzler that'll let me feel accomplished just for passing the level rather than doing it flawlessly. So what are my options? The best example I can think of is the brilliant Aqueduct, but obviously I own that already.