Marathon

Marathon is a first-person shooter developed for the Apple Macintosh by. It was released on December 21, 1994. It is often called a Doom clone, however, it is based on , which came out shortly before Doom. Due to being Mac-only, Marathon was not as popular or well-known as later games such as Duke Nukem 3D, but still had a niche fan base as Doom would not be released for Macs until 1995. All three games in the Marathon series are currently available as freeware for Windows, Linux, and Mac OS X via Aleph One, an enhanced source port. It is notable for being one of the earliest plot driven first-person shooters, alongside System Shock and Marathon's immediate predecessor Pathways Into Darkness. Most of the story in the game is told through terminals. Although reading has come back in more recent games, it was very abundant in this series for the time, with a strong philosophical bent and a Greek mythology motif (as evidenced in the name of the game itself.) It was also the first FPS to have game modes such as Capture the Flag and Oddball (Called Kill the Man with the Ball in the actual game.)

Description
In the first Marathon game, the player assumes the role of a cybernetic security guard who stumbles upon the UESC Marathon, a massive starship colony built out of the Deimos moon. Instead of demons from Hell, the player fights off hordes of vicious aliens, while defending panicking crew members and dealing with the ship's artificial intelligences via text terminals.

Similar to Doom, the player's starting weapons are a pistol and his fists, and the player faces hazards such as crushing ceilings and lava. The game environment has a similar "2.5D" appearance, with floor, wall, and ceiling textures, actor sprites with eight rotations, elevator lifts, and switches. Notable features included seamless sector-over-sector design, an on-screen motion tracker, free look, swimming through liquids, usage of oxygen tanks in cold vacuum or underwater, and weapons with actual magazines rather than drawing straight from ammo reserves.