Star Trek: 25th Anniversary is an adventure video game by Interplay, based upon the Star Trek universe. The game chronicles various missions of James T. Kirk and his crew of the USS Enterprise.
Star Trek: 25th Anniversary (a combination of flight simulator and adventure game) was the first critical and popular hit in the Star Trek computer gaming franchise.
Game play is broken down into several "episodes" reminiscent of the Star Trek television series (the game is portrayed as "the lost fourth season").
Much like the away parties of the series, the game puts the player in control of as many as four characters at once. The adventure team consists of the series' main characters, Captain Kirk, Mr. Spock, and Dr. McCoy, and an occasional "red-shirted" security officer, who is the first to be killed should the player make a fatal misstep. Sulu, Scotty, Uhura, and Chekov would have to wait for the sequel, Star Trek: Judgment Rites (not for the Amiga), to appear on the away missions.
Space combat involves maneuvering the Enterprise and firing her weapons at enemy starships. In Star Trek: 25th Anniversary the player can assign Scotty to repair the ship's systems (e.g., prop up the shields, restore weapon functionality, or repair the scanners to remove static from the main screen). Throughout the game, there are only a few instances, such as the final battle, where the player must engage in combat.
Destroying the Enterprise or killing one of the main characters ends the game, requiring the player to restart from the last saved game. This was mandated by Paramount, which had final approval rights on the game's contents. Getting a "red shirt" killed may be accomplished in almost every episode and will not end the game, but will lower the mission score.
At the end of each mission, players received a message from Starfleet Command on how well they have done (100% being perfect and less than 50% is considered a botched mission). It is possible to complete missions while failing at every objective, giving an unsatisfying ending. At the end of the game, the player receives a final evaluation from Starfleet Command. A "Very High" score results in the crew being granted shore leave, while a sufficiently low score results in Captain Kirk's demotion, removal from command of the Enterprise, or a similarly undesirable ending.