Puzzles! I love all kinds, and I want to get better at more of them. Crossword puzzles, jigsaw puzzles, riddles and word puzzles, puzzle games like sudoku and blendoku, as well as notpr0n. I'd like to do notpr0n with someone, because I'm not clever enough to figure it out but spoilers on the internet give too much away.
notpr0n is a 140-level puzzle game that seems like a point-and-click but isn't. It involves everything from reading source code to manipulating audio and images in order to find clues. It feels like a scavenger hunt. Here's the first level! http://notpron.org/notpron/
The game all looks about the same - black background, strange-ish image in the center. The point is to try to get to the next level, but there isn't much visual difference between the levels, just how to get to the next one is what changes. It's simple, but the clues are hard to figure out.