I purchased this on Amazon this month and played it only once. It's a puzzle-solving game that you play while using your smartphone, etc. I played without writing anything, so it's possible to play it as if it were new. *This game uses cards, but I opened one bag to take out a part. Although there are signs of the bag being opened, it doesn't affect gameplay or the parts themselves. As for my impressions after playing, three adults with experience in real-life puzzle-solving played it, and it took us about 5 hours to clear. The difficulty was personally satisfying, and it was very challenging. The story was also satisfying, like watching a movie, and I was completely satisfied overall.