Setting difficultly is tricky, i guess it depends on what kind of game you are trying to make, who your audience is and how much you care about mass market. I

Setting difficultly is tricky, i guess it depends on what kind of game you are trying to make, who your audience is and how much you care about mass market. I was surprised there was only 20 puzzles, and was a bit confused where the next button had gone until I had realised that was it... but then I learned a while ago that something like only 10% of people complete the games they buy, so from that perspective if you care more about the 90% then it wont make any difference. I'm probably in the 10% who came from that unreal/HL generation used to blasting through long games with lots of medium difficulty puzzles who don't expect to be walked through everything, but that's now the minority.