One of the best puzzle games I've ever played.

Your job is to board this abandoned vessel and determine what happened to every passenger that was on board. You do this by being able to see the last few moments of any crew member who's "corpse" you find aboard or in the flashbacks of other crew members.
This game then forces you to determine who each person was, what their role on the ship was and their cause of death. While it is possible to "guesstimate" and brute force the game a little bit, this is mostly prevented by only confirming correct choices in pairs of 3. This forces you to have a pretty good idea of the events that occurred before confirming anything.

The way the game feeds you this information is also genius, and without getting into too many spoilers, you will have to pay attention to the details of a lot of the flashbacks to solve this game. That said, you can review them as many times as needed, so don't be afraid of missing something and getting stuck.

Overall, an excellent title that I recommend to anyone who likes puzzle games of the same style as Outer Wilds.