Star Trek : 25th Anniversary ( PC ) Star Trek : 25th Anniversary is an adventure / action game for PC , published by Interplay Entertainment . A basic two - dimensional game , the player assumes the role of the landing party – Kirk , Spock , McCoy , and a generic ensign – on several different missions . The gameplay works by selecting a body part the player wishes to use ( for example , lips for speaking , eye for examining , etc . ) from the drop - down function box . The player must solve different puzzles and perform special actions within each level , or mission , in order to progress to the next . This game encompasses much of the " Star Trek " universe , with missions ranging from starship battles to dealing with Harry Mudd . Each mission is completely stand - alone in terms of plot and puzzles ( i . e . items or knowledge from previous missions are not required ) , simulating the structure of " Star Trek " episodes . There are a total of seven episodes . Each mission begins with a brief explanation of the mission either by a message from Starfleet command or Kirk ' s log entry . All missions have optional things to do and some have alternate solutions leading to very different plot paths . At the end of each mission , Starfleet gives an evaluation of the player ' s performance on a percentage scale . Some missions may end as a complete failure , but still permit the player to proceed to the next one . The game only ends if the is destroyed or someone of the main trio dies ; the death of a redshirt results only in a reduction of score . The game was published on both floppies and CD - ROM . The CD - ROM version adds spoken lines performed by the original cast and expands the last mission , in response to criticism about the brevity of it in the original . Background information . Many missions had a sub - game wherein the player would figure out how to get the redshirt killed , although this would diminish their rating at the end of the mission . Before arriving at a system , it must be selected from a starchart , with a master copy included in the package . If the wrong system is selected , the " Enterprise " is often fired upon by whomever is control of that system , usually Romulan s , Klingon s , or Elasi pirates . In some versions , if by chance one should arrive at a system in a later mission , the user is able to play that mission without completing the previous ones . This did not work for the Mac version , however . When a closeup of Harry Mudd is displayed on " Enterprise " s viewscreen , his facial features are obscured by shadows . This is because Paramount required that when likenesses of real actors or actresses were used in the game , the approval of the actor or actress in question was needed . However , Roger C . Carmel , who played Mudd originally , had passed away by the time the game was made . This problem was only noted near the end of development , and negotiating a solution with Paramount would have delayed the release . Therefore the decision was made not to actually show Mudd ' s face clearly . Missions . " Note : These describe the most direct ways of completing the mission . There are several side quests which are optional , but will improve the player ' s rating if they are completed . " 1 – " Demon World " . The game starts with the " Enterprise " having a simulated battle with the . It is not required to win this battle , although it will diminish the player ' s rating for the mission if they lose . Afterward , the " Enterprise " is ordered to Pollux V , where a colony of monks has come under attack from what they describe as " demons . " Kirk , Spock and McCoy investigate , and are attacked by three Klingons which , on closer inspection turn out to be robots . After repairing the detached hand of one of the robot Klingons , the crew gain access to a complex which houses the planet ' s former inhabitants , the Nauians , who are suspended in stasis which they entered to survive an encroaching ice age . Kirk assists in shutting down the defense system that is producing the " demons , " and the Nauians agree to share the planet with its new occupants ( or even ask to join the Federation , depending on how polite Kirk is to the chief Nauian ) . 2 – " Hijacked " . The " Enterprise " is ordered to investigate the disappearance of the USS " Masada " , and eventually track it to the Beta Myamid system . It transpires that an Elasi pirate named Cereth has taken control of the ship , and threatens to kill its crew unless the Federation releases a list of Elasi criminals currently incarcerated in various locations around the Federation . Kirk and a landing party beam across after lowering the " Masada " s shields by using its prefix code and release the captive crew ( or accidentally kill them all by setting off an Elasi bomb ) . They gain access to the bridge by either the turbolift or transporter , and can either force Cereth into a peaceful surrender or kill him and his fellow pirates ( although they will lose their security officer in the process ) . The mission has an alternate ending , which is achieved by saving the " Masada " crew from the Elasi bomb , and then transporting the bomb onto the bridge , which is subsequently destroyed by the bomb exploding . The " Masada " immediately goes out of control and crashes into a nearby planet , and everyone on board apart from the " Enterprise " landing crew dies . The player is subsequently given a score of zero for the mission , and a strong rebuke from Starfleet . Another alternate ending can be achieved without even beaming over to the " Masada " , by continually taunting Cereth until he kills off the hostages . This also results in a score of zero . 3 – " Love ' s Labor Jeopardized " . A pair of Romulan ships cross the Neutral Zone and attack the research station ARK7 , which is under the supervision of Dr . Carol Marcus . The " Enterprise " is called to assist , and after dealing with one of the Romulan ships , Kirk and a landing party beam across . They quickly discover the reason for the Romulan attack ; Marcus and her team accidentally developed a virus called Oroborus , which is deadly to Romulans and Vulcans . Worse still , an accident has resulted in ARK7 ' s atmosphere being contaminated , meaning Spock is now infected and will die unless McCoy can invent a cure . After experimentation , McCoy creates a cure by exposing the Oroborus virus culture to ammonia , and Kirk immobilizes the Romulans with TLTDH , the " Romulan laughing gas " which gives them an uncontrollable laughing fit , then knocks them out . McCoy cures Spock and the Romulans of the Oroborus virus , and the Romulan captain agrees to leave peacefully . Kirk then bids farewell to Carol , wondering if he ' ll ever see her again . . . 4 – " Another Fine Mess " . The " Enterprise " answers a distress call from the Harlequin system , but finds only a pair of Elasi pirate ships , which swiftly attack the " Enterprise " . After dealing with the Elasi , the " Enterprise " finds out that the person who sent the distress call was none other than Harry Mudd , who has found a mysterious alien cargo ship and registered it as salvage , and subsequently been selling alien devices to the Elasi . What follows is probably the least eventful mission of the game , as Kirk and his crew explore the alien ship , discover the mysteries behind who built it which would largely remain unsolved forever because of the computer archives being erased by Mudd ' s greedy bungling , and find an ancient weapon system that they can adapt for use on the " Enterprise " . After fully exploring the ship , the " Enterprise " leaves Harry , but not before Uhura reveals that she has informed Harry ' s wife , Stella of his current whereabouts . There are no redshirt deaths in this mission ; the only methods of failure are to either lose the battle against the Elasi pirates at the start of the mission , or fail to repair a malfunctioning life support generator in time . 5 – " The Feathered Serpent " . " Stardate 5097 . 2 : " Upon hearing that a Klingon task force has crossed the Neutral Zone in pursuit of a fugitive , the " Enterprise " moves to intercept their fleet in the Digifal system . The Klingons inform Kirk that their fugitive is residing on one of the planets on the system , and agree to let Kirk retrieve him . Upon arriving , Kirk and his party are surprised to meet a man who claims to be the Aztec god , Quetzalcoatl , and to have undertaken a mission to the nearby Klingon planet of Hrakkour to spread his message of peace and self - sacrifice . Upon hearing Kirk ' s description of the Aztecs as bloodthirsty savages , Quetzalcoatl becomes angered and transports Kirk and his team into the middle of a series of trials , designed to make them prove their worth . They complete their tests successfully , and Quetzalcoatl acknowledges that whatever humanity ' s past , they have become a worthy species . He then reveals that the source of his power is an organ not found in humans , and asks that McCoy remove it , so that he may become a mortal . Kirk agrees to this request , and they are beamed back to the " Enterprise " . However , while Quetzalcoatl is undergoing his operation , Admiral Vlict , commander of the Klingon fleet hails Kirk and demands that Quetzalcoatl be turned over to him . He further reveals that he has destroyed all life on Hrakkour because of the " danger " that Quetzalcoatl ' s philosophy posed , and to Kirk ' s dismay , the Organian s rule that Kirk must comply , as Quetzalcoatl has interfered in Klingon affairs . Upon arrival at the ruined planet of Hrakkour , Vlict begins what is an obvious show trial , and Kirk intervenes , asking for the right to undertake another series of challenges , and Vlict agrees that the now - mortal Quetzalcoatl can go free if he completes them . The mission has two distinct endings from here . The first ( and best ) ending comes when Kirk and his crew find an ancient chamber built by a long - extinct race that previously inhabited Hrakkour . Upon activating the sentient main computer , the computer analyzes the minds of everyone on the planet and brings Vlict to the chamber . It pronounces that while Kirk , his crew and Quetzalcoatl are innocent and may go free , Vlict is guilty of genocide against his own people and sentences him to death . At this point , Kirk can either interfere and ask that Vlict ' s life be spared , or he can simply leave Vlict to his death ( which choice the player makes has no bearing on the mission score ) . Quetzalcoatl is subsequently returned to the Digifal system , to live out the remainder of his life as he sees fit . The second , worse ending comes if Kirk successfully completes the Klingon challenges and returns to the courtroom . Vlict reneges on his promise , sentences Quetzalcoatl to death anyway and orders Kirk to leave Klingon space . Despite Kirk ' s attempt to intervene , Quetzalcoatl agrees to sacrifice himself to avoid a potentially devastating war between the Federation and Klingons , and the " Enterprise " leaves Klingon space , its crew mourning Quetzalcoatl ' s death . It is also possible to get this ending without even undertaking the Klingon challenges , by refusing to defend Quetzalcoatl . The final alternate ending can result in Vlict being sentenced to death by the Hrakkour AI , and when the Klingons demand to know what happened to their commander , the player is rude to the Klingons , resulting in a battle between the " Enterprise " and the Klingon flagship . After the Klingons are defeated , Spock announces that he is reporting Kirk to Starfleet Command for needlessly initiating the battle ( humorously however , an apparent glitch will mean that no deduction from the mission score takes place ) . 6 – " That Old Devil Moon " . Starfleet orders the " Enterprise " to investigate unusual signals coming from Scythe , the moon of the planet Proxtrey . Proxtrey was formerly a thriving industrial planet , but following a massive nuclear war several centuries previously , has become technologically backward . Kirk and the landing party beam down to Scythe , which they discover houses a missile base which began the previous nuclear war . The Proxtrey population , having slowly rebuilt from the Iron Age they bombed themselves into , have reached the equivalent of early 20th century technology again and are once again broadcasting wireless radio transmissions . The computers on Scythe are detecting these transmissions and , without a control transmission from its superiors , is assuming that the enemy factions on the planet are still active . The base is therefore preparing another nuclear attack on Proxtrey , which this time will probably be enough to wipe out the planet ' s remaining population . Further investigation reveals that while the primary firing system has been affected by a computer virus ( which also briefly attacks the " Enterprise " ) and cannot plot an accurate attack on the planet , the backup system is still working fine and is set to carry out the most devastating possible attack on Proxtrey . The crew figures out how to infect the backup system with the virus as well , ensuring that the last of Scythe ' s missiles will miss the planet and be pulled into its sun . This is another mission without any specific red shirt death , and also the only mission with no space battle at all ( " The Feathered Serpent " has one , but it is only initiated if Kirk is rude to the Klingons ) . The only way to fail this mission is to try and destroy either the primary or backup fire controller , resulting in the base launching all its missiles at the " Enterprise " , which is still defenseless in the wake of the computer virus ' s effects . 7 – " Vengeance " ( original version ) . " Stardate 6088 . 5 : " The " Enterprise " receives a distress call from the " Republic " , and arrives to find its sister ship wrecked and adrift in space , with only two survivors , one of whom dies just as Kirk and the landing party beam on board . The other is revealed to be Brittany Marata , a former Starfleet Academy classmate of Kirk , who is less severely injured . She claims that it was the " Enterprise " which attacked the " Republic " , which Kirk refuses to believe but Spock finds to be verified by the " Republic " s own computer logs . Kirk and the landing party beam back with their survivor , and go to the " Republic " s last reported destination , the Federation planet Vardaine . The " Enterprise " is then intercepted by another starship . . . which also happens to be called the " Enterprise " ! The commander of this " Enterprise " reveals himself as Dr . Ies Breddell , a former member of the Vardaine ruling council who Kirk previously exposed for corrupt practices . Breddell claims to have gained control of the council now and to be undertaking a program of building replica Constitution class ships , with which Breddell intends to overthrow the Federation . The resulting final battle , against Breddell ' s " Enterprise " ( which has superior armaments to the real version ) and a pair of Elasi pirate ships is exceptionally difficult , and winning it is generally regarded as a major achievement . 7a – " Vengeance " ( extended version ) . In response to criticisms of the shortness of the original version of the mission , it was remade for the CD release of the game , this time featuring an extended mission on the wrecked " Republic " instead of just scenes on the bridge and sickbay . This time , the " Enterprise " gets a distress call from a trader under attack from Elasi ships , and Kirk orders Scotty to take command and aid the trader . Kirk and the landing party discover that the " Republic " was supposedly attacked by the " Enterprise " and then find the injured Marata , who in this version has far more severe injuries and dies shortly afterward , using her final words to accuse Kirk of murdering the " Republic " s crew . With her crew now entirely lost , Kirk sets about restoring power to the " Republic " , only for an Elasi ship to arrive as soon as they get the main computer up and running again . They raise the " Republic " s shields , which are barely functional but prevent the Elasi from beaming over . The Elasi captain then makes the same demand that Cereth made earlier in the game , which Spock quietly notes to Kirk is in fact futile , since the ship ' s data banks were destroyed in the battle . Kirk agrees to try and find the info anyway , and uses the time available to get the " Republic " s torpedo bays operational , using the ship ' s transporter to bypass the hull breaches that have made the bays inaccessible by foot . Just as the Elasi ' s deadline is running out , Kirk transfers all power to the weapons ( forcing them to take the risky move of lowering their shields ) and uses two torpedoes to cripple the Elasi ship , and the " Enterprise " arrives on the scene shortly afterward , forcing the Elasi to flee . The landing party returns to the " Enterprise " , and from this point the mission proceeds as the original did . Despite being much longer than the original , the extended version was quite buggy , and sometimes impossible to complete . One such bug would render Spock incapable of realizing that the landing team needed to use the transporter to reach the torpedo bay , meaning that there was no way of completing the mission , which would only end when the Elasi captain became enraged at the crew ' s failure to meet the deadline and destroyed the " Republic " completely , resulting in a game over . Another would sometimes occur when the player transferred the " Republic " s power from the weapons to shields , and resulted in the Elasi pirates instantly beaming aboard and killing all the landing party , before Kirk has a chance to press the torpedo launch button . Despite these bugs , it is usually thought of as being much superior to the original version . Neither version of this mission includes any form of redshirt death . 8 – " Epilogue " . At the conclusion of the game , once the " Enterprise " departs from its final mission and admiral ' s review . the screen is replaced with a generic starfield and a memory card to Gene Roddenberry . William Shatner does a short memorial to Roddenberry while the " Star Trek " theme plays in the background . This is only available on the CD - ROM edition of the game .