Some single player videogames are more fun when played together

If you look online, it's easy to find recommendations for good multiplayer / co-operative videogames. My girlfriend and I have especially enjoyed playing games like Portal 2, It Takes Two, Rayman Legends, Overcooked and the Trine series. What we've found however, is that there are a bunch of games we enjoy playing together that are not multiplayer games at all! Because of this, these single player games are often not mentioned in online 'best co-operative games' lists, and they won't be found when using the 'Local Co-Op' tag on Steam. We first realized this in 2015 with Sam Barlow's Her Story. This is a narrative mystery game where you're exploring fragmented police interview footage of a woman whose husband went missing. The short video fragments can only be found by typing in a word that was said in that video. Even though I was the only one typing on the keyboard, it was fun discussing and solving the game together. We really enjoyed this game, and his third game IMMORTALITY is…