TR-49 is analogy rendered in four dimensions. On a surface level, it's a game about sorting through an archive of written works and commentary that has you identifying dozens of excerpts and documents, all with the aim of destroying a particular work. Beneath the surface, however, this is a piece of art that speaks viciously and satirically to so much of our reality.
Each Arc Raiders map has a few intriguing puzzles to figure out, and they'll usually provide you with some nice loot for solving them. For instance, if you've come across the Ancient Fort POI on the Blue Gate map, you may have noticed a cellar door and some electrical boxes scattered around. This puzzle is easy to complete in theory, but the random battery locations add a sense of randomness to the equation.