Which of these games was the earliest known first-person shooter with a known time of publication?

The earliest known first-person shooter with a known time of publication is Spasim. It was released in 1974 and was created by Jim Bowery. Spasim was a multiplayer space simulation game where players could control spaceships and engage in battles with each other. It featured wireframe graphics and allowed players to move around in a three-dimensional environment. Its release predates other notable first-person shooter games such as Maze War and Battlezone, making it the earliest known game of its kind.