The Saviour of Time ( video game ) The Saviour of Time was an interactive six - part game released on Skype on 3 May 2017 . It was facilitated through a Skype bot , which challenged the user through text prompts . Mainly the game used the fictional character of the Twelfth Doctor , and a new search for the segments of the Key to Time , to deliver educational content , such as real life facts about the solar system . In that way , it harkened back to games found in 20th century " Doctor Who " and Dalek annual s . Marketing . BBC Worldwide and Skype both issued statements at launch , portions of which included : Synopsis . Every few hundred years the Key to Time needs to be found again and reassembled to restore peace and balance to the universe . Now that time has arrived once again . Connect to Skype and help the Twelfth Doctor find the Key to save the universe . Walkthrough . The Key to Time ( Chapter 1 ) . The Doctor Who Bot connects with you via your Skype account . It becomes instantly apparent that the bot will be the conduit through which you communicate with the Twelfth Doctor . The Doctor asks for your name , accepting the first word that you type as the correct answer . The bot ' s response indicates that Bill and Nardole are present on the TARDIS with the Doctor . The Doctor informs you that they need to use a Tracer to find the Key to Time , a powerful device which can be used to balance the universe , but is split into several pieces . The Doctor promises that when they get through with this , they ' ll be able to visit other locations , such as the Fifth Galaxy ( with purple stars and moonbeams made of marzipan ) . Going down a list of potential planets in the solar system with you ( Mercury and Venus ) , the Doctor eventually narrows down the segments location to somewhere around Neptune . Certainly not " on " Neptune ( as the planet isn ' t exactly solid ) but instead on one of its moons ; Triton . As some force is trying to divert the TARDIS ' flight path , the Doctor asks the human to help type the coordinates to Triton , with the final code being 5 , 6 ; 3 , 5 ; 8 , 11 ; 847 , 851 . The Doctor leaves Nardole and Bill in the TARDIS , as he drives onto Triton ' s surface on a buggy . The buggy no longer has a steering wheel , due to a fiasco where the Doctor needed to make a crown for a frog princess , and you must drive it from 2 . 7 billion miles away . The Doctor begins to hear a noise near a ravine , a troublesome occurrence as nothing has ever been recorded as to live on the moon . Moving north despite interference with the signal , the buggy eventually enters an emergency mode , which reveals the true presence of the first segment of the Key . The buggy soon stops being able to move , stuck in something that begins to melt through its tires . The Doctor ejects , accidentally dropping the Tracer for the Key to Time in the same substance . In his last chance to escape , the Doctor uses a personal Vortex manipulator to return to the TARDIS , not knowing if the presence of a piece of the Key to Time will disrupt his travel . The Doctor returns to the TARDIS and dematerialises , soon witnessing the piece of the Key transform . Celebrating with you , the Doctor soon realises that Nardole and Bill have totally disappeared . Shocked to learn that they are not with you , he tracks their artron energy back to Earth , where he heads to look for them . A side transmission from another unknown user reminds you to " " remember , remember the fifth of . . . " " Time Gambit ( Chapter 2 ) . The Doctor Who Bot alerts you to the availability of new content . Once you respond , the Doctor asks you what you ' ve been doing . Later , he ' ll ask you whether he heard anything , or if anyone sent him a clue . When you tell the Doctor about the cryptic message from earlier , he wonders which " fifth " was meant . Suddenly he gets it ! It ' s about the The Gunpowder Plot - - and Bill and Nardole could be in explosive danger . The Doctor sets coordinates for November 5th , 1605 and the transmission ends . Afterwards , Bill contacts you . She tells you that when on Triton , a " glowy light thing " appeared in the TARDIS and grabbed them . She then asks what they think it was . She proceeds to state it ' s weird , and that everything was black . She also informs you that she isn ' t aware or Nardole ' s whereabouts , before she ' s interrupted by the same individual who gave the mysterious warning to " remember the fifth " . That person starts off by saying that she asks a lot of questions . The figure also says that it ' s very much like the Doctor to get another friend after losing two . You are then greeted by this entity , who tells you that he or she has changed history . The Gunpowder Plot will now succeed ! Worse , Bill is now tied up in the House of Lords . The mysterious caller asks you if you want to know how to find the Doctor ' s companion . He or she sets forth the rules : they ' ll ask you ten questions in ten minutes . If you get seven or more right , Bill ' s location will be revealed . If you answered seven questions correctly , the disguised figure will be surprised by your success . It will then idly threaten you , saying that if you two were physically close to each other , you would be in a lot of pain . Nevertheless , he or she honours their agreement with you by telling the Doctor where Bill is . The Doctor later reconnects with you , revealing that he has Bill and history has been corrected . He ' s also retrieved a new fragment of the Key to Time . He effectively thanks you for rescuing Bill , and even attempts to congratulate you , but is interrupted . Bill says she is not Bill multiple times . As it turns out , the second segment transformed to look like Bill , but it dawns on the Doctor that Bill and Nardole are still missing , and that someone is playing games with the duo . The transmission ends . You Are the Doctor ( Chapter 3 ) . The Doctor returns with a message and asks how they are , however not really caring and wanting to get on with the quest . The Doctor states that after he collected the second segment of the Key to Time , he did a sensory trail of the House of Lords and was able to locate an artron energy trail . He states that he had been following the trail across the Universe , however whoever kidnapped Bill and Nardole appeared to always be on step ahead of him , following them from Earth to Balhoon , then to Terra Alpha , then back to Earth , then Metebelis III . . . He realises he ' s been rambling on , stating that the human probably gets the idea by now . He says that the trail stopped on The Rising Sunlight of the Tristanian Nebula and that he ' s orbiting the planet in his TARDIS . However despite its name , it ' s not really a lovely place and it ' s essentially one giant shopping centre . He reveals his reason for contacting the human , where the human will need to answer questions based on the Doctor ' s previous visits while he sneaks the TARDIS through the planet ' s defence shields and try to locate Bill and Nardole . The Doctor talks about how the human will probably need to use information previously mentioned by the Doctor , as well as guess some of the other questions and that if they get at least half of them right it should give enough time to find out what ' s going on in the inner workings of the planet , and if they fail they ' ll be putting his life at risk , Bill and Nardole ' s life at risk and everyone in the universe , so no pressure . The questionnaire begins . ( Answer : A Crown ) ( Answer : Electric Guitar ) ( Answer : Chess ) ( Answer : Mozart ) ( Answer : None of the Above ) ( Answer : Jelly Babies ) ( Answer : Yale Blue ) ( Answer : Velvet Coat ) Finally , the questionnaire is convinced that the human is the Doctor offering a discount on a Valkorian Matter Dimensionalizer . The Doctor returns and states that whilst the human was distracting the computers he found the third segment of the Key to Time as well as Bill . Bill gives the Doctor a look , telling him that he should put the self - congratulations on hold until the Universe is actually saved . He also tells the human to not tell Bill that he missed her , even if only just a little bit . He says that it is time to find the fourth segment , and hopefully Nardole too , bidding farewell to the human . The Doctor ends the call , however a new message is received from an unknown recipient . The unknown figure tells the human that they enjoy watching them and that they ' re a funny little person . The Temple of Death ( Chapter 4 ) . The Doctor is back in contact with you . There ' s no time for chat as the Doctor and Bill are en route to the planet Shar - Tek ; he ' s flying the TARDIS while Bill is examining the current segments of the Key to Time . He decides to tell you why they ' re going to Shar - Tek . He tells you about an old friends called Perkins , a train engineer who he met on the Orient Express when an ancient mummy was trying to destroy all the passengers . He states that Perkins now works on the Space Mallard taking tourists around the 700 Wonders of the Universe . . . or it might be 699 . He sends a picture of what Perkins showed the Doctor , a carving on the wall saying " NARDOLE WOZ ERE ! " Perkins guessed it was a message for the Doctor so got in touch , revealing that Nardole was on the planet Shar - Tek thousands of years ago . The Doctor runs through the options he has , which is join Perkins and his crew now or travel back in time to rescue Nardole . He says that the second option is probably dangerous , but what he really means that it ' ll certainly be dangerous , so he goes for the latter and more dangerous choice . They finally arrive on the planet , sending a picture to you of the planet . He tells you that he ' ll look for Nardole in the temple , and he hangs up not believing that he ' ll need your help . Not long after , the Doctor calls again , stating that he does need your help after all . He reveals that the Keepers of the Temple of Shar - Tek are away which is good as they ' re not keen on alien visitors . This is evident by the many skeletons he discovers in the temple . Instead of dwelling on the dead , he decides to move on with the task at hand instead of joining the skeletons . He sends a picture of the lock to you as well as options A , B , C or D on what the next sequence could be , the correct one opening the door . Upon selecting Option B , the door opens , as the sequence goes by adding one orange dot in every term . He runs down a corridor which leads to a room containing two doorways , guarded by an android in a Keeper ' s cloak . He reads a sign which states " Hello , Doctor . To find Nardole , you can ask one of these androids one question . One android always tells the truth , and one always lies . . . " . He names the androids Tom and Jerry . He goes to one of them , and discovers it holding a scroll , giving the option of three questions . The correct question is 3 , and once asked , go in the opposite door that the android selects . The Doctor does this and runs down another corridor with a Logic Lock . The question goes " A Keeper has twelve black sacred socks and twelve white sacred socks . Their sacred room is in darkness . How many sacred socks must they take to make sure they have a matching pair ? " Once the human says the right answer of 3 , the Doctor goes down another corridor which again leads to a logic lock . The Doctor gives a sequence , " 16 06 68 88 ? ? 98 " . Once you tell him the answer is 87 , the door unlocks . The Doctor says he hears chanting from outside so he ' ll need to pick up the pace . Again , another door with another lock . " Four blessed Keepers have four blessed pets . . . Keeper Timon , Keeper Tivoc , Keeper Tuvoc , Keeper Ted . They have a bird , a cat , a dog , and a fish . Keeper Tivoc ' s pet can ' t fly . Keeper Tuvoc ' s pet has hair so does Keeper Ted ' s . Keeper Ted ' s pet doesn ' t bark . Which blessed Keeper owns the blessed fish ? " Once you come to the answer " Tivoc " , the Doctor tries it and the door opens . Finally the Doctor finds Nardole who is gagged and tied to a segment of the Key to Time . However , next to him is a Holy Shar - Tek vapouriser timed to destroy the whole place in 2 minutes . In order to stop it you and the Doctor need to figure out a two figure code , the only clue given being " Lower than 50 " . The vapouriser takes 13 seconds off the clock with every wrong answer , however when the correct answer is sound ( 42 ) , the vapouriser is defused and the fourth segment is finally found . The Keepers are getting closer and so the Doctor leaves , hanging up . The Old Enemy ( Chapter 5 ) . The Doctor is back into contact with you and will ask how you are , before moving onto the next part of the quest . He reminds you that the last time you spoke , he was on the run from the Keepers on Shar - Tek . Nardole reminds him that he was also on the run . The Doctor states that the TARDIS team is high - fiving , now being all back together , telling you to high - five yourself also . He summarises that so far there have been four collected segments of the Key to Time but someone has been messing around . The speculates the Celestial Toymaker , because he loves games and he can imagine him causing chaos with the Key . He later speculates the Trickster , because he and his Brigade are constantly trying to cause chaos which he feeds on . If he was responsible then he would no doubt be feasting . Finally , he suggests , as with her , anything could be possible . He states that he has been trying to work out if it could be any of them , before the TARDIS is hit . He mentions that everything is going wobbly , like back during the Triton incident but worse . The Doctor starts feeding numbers to you to help him out , where you need to multiply them by three , then subtract three . The code goes 3 , 6 ; 5 , 12 ; 8 , 21 ; 20 , 57 . He believes that you have done it , but another number comes in - 62563964590534064 . Before you can give the co - ordinate , the Unknown sender messages , stating that he finally has you , and enjoys watching you and the Doctor get lost in their maze . The Doctor tries to speak to them , asking who they are and why they want the Key . However , the figure explains how they don ' t want it . The Doctor doesn ' t understand , but the figure reveals that it is their employers that want the Key . The Doctor asks who the employers are , and almost instantly , Field Marshall Plask sends an incoming message , stating that they are now prisoners of the Sontaran Empire . The Doctor is confused , as games and riddles are not Sontaran behaviour . Plask replies that they are the greatest military strategists in all the known and unknown galaxies , and that they employed the agent in order to track them . The Doctor is not amused , and pokes fun at his strategy saying that they were getting someone else to do their dirty work for them . Plask retaliates , correctly assuming that the Doctor believed that he was in combat with a Trickster . The agent asks when they will be receiving payment . The Doctor tells you to stay calm and tells the agent that the payment will no be what they expected . . . death . Plask reveals that the TARDIS is now under their control and is being taken into Sontar at the heart of the Empire . The Doctor tells you not to panic , and that it has been fun and lovely working with you . But the Doctor thinks you ' ve done all that you can , and that he will try to get back in touch when and if they get through . Plask states that illegal communication between the Doctor ' s TARDIS and Earth has now been terminated , and he wishes you well in any future battles . However , shortly after , a new incoming transmission is received from Grex . He asks if he is communicating with you . He reveals that he is scientist Grex of the Sontaran Empire and that he is using the Doctor ' s channel to avoid detection by other Sontarans . He asks you for help , as it is dishonourable for the Sontaran Empire to use the Key to Time , so he needs you to help rescue the Doctor and halt Plask ' s campaign . Grex first decides to test your abilities . He says how the Sontarans a race of identical clones , however , he altered his appearance so that you will be able to locate him on Sontar . He sends you four images , and asks you to identify him . After being identified , he says that you can assist him in the future , and that he will contract you when they are ready to rescue the Doctor . He also says how you may fall in battle , but it will be for a glorious cause . After a final Sontar - Ha , the communication ends . Endgame ( Chapter 6 ) . Grex connects to you , asking if you ' re there . He talks about how a future battle approaches soon , as the Doctor , Bill and Nardole are being held in a cell . He talks about how he will need the Doctor alive to stop Plask and his plans to assemble the Key . He walks towards Plask ' s war chamber where he ' ll attempt to delay him assembling the Key , while he ' ll be needing you to release the Doctor . He asks you if you have a teleportation device . After bemoaning your " ridiculously primitive species " , he starts brainstorming alternative solutions , such as a matter transtelegrapher or putting your brain in a clone before he comes up with the answer . He states that he will remove a Sontaran from a newly produced clone batch and replace their brain with a device that will allow you to control him . He mentions how he won ' t die in battle , which is a dishonour , but the sacrifice is necessary . Once you ' re connected , Grex will give you a choice between three Sontaran names ; Lynx , Kaarsh or Katsy . Once the name is chosen , Grex will tell you that your are unworthy of such an honour . He then configures the translation device , where anything you type will be translated into a Sontaran manner of speaking . Once you send a message , he tells you that you sound vaguely honourable . He then proceeds to explain the mission to pilot the Sontaran remotely . The Sontaran clone will approach the cell block and find out from the guard the code to unlock the Doctor ' s cell . You will then need to engage the guard in conversation to gain his trust , and if you don ' t do it successfully , the clone unit will be executed . The guard ' s name is Josk , and his clone batch is TX231163 . He also mentions that he ' s a devoted supporter of Plask , and he survived the Battle of Ruta V - which is something that you could mention to gain his trust . Josk despises all other species but carries a particular hatred for humans , and uses the chant of " Sontar - Ha " at every opportunity , to which Grex suggests doing the same . However , when you next send a message , the translating device will begin to malfunction , skipping characters and replacing others with numbers . It soon destroys itself , but Grex trusts you to speak like a Sontaran normally would , following the speech patterns . He suggests saying " Sontar - Ha " freely , appeal to honour and glorious battle , pretend to support Plask , tell him that you also fought at Ruta V , and then get the code . After having a conversation and saying the right things , Josk will eventually give you the cell code of 779461 and leave . Grex is surprised when the mission turns out to be success , however he does not have the time nor inclination to engage in " pleasantries " . He was able to secure the code from the transcript logs , and has gained the final piece to the Key to Time , and will join you in the cell . Once in the cell , he says he will transfer communications back to the Doctor . He congratulates you , and tells you that he will reward you with a quick and painless death when you meet beyond the stars in battle . The Doctor asks whether you are really inside the Sontaran ' s brain . When you respond , he states that it is very clever and that Grex isn ' t too bad for a Sontaran . He summarises that he ' s in a cell with Bill , Nardole , Grex and . . . " you " . He now has all six pieces of the Key . He proceeds to warn you that there is no such thing as free will in the Universe , only his will because he possesses the Key to Time and can do anything - including the ability to give you eyebrows like his . He states he ' s about to restore the balance of the Universe when he hasn ' t even had any breakfast . The final piece is put into place , before they fling themselves back across the Universe and disguise themselves for the next time . The Doctor tells you that he would love to stop and chat , but Nardole is reminding him that he is needed back on Earth , but what he has to do is a long story for another day . He also tells you that Bill is reminding him that he needs to find the TARDIS and escape from the heart of the Sontaran Empire , and that Grex is reminding him that it ' s actually the heart of the GLORIOUS Sontaran Empire . He says he has to run , but that he won ' t forget all that you have done to help him , and that bravery like yours is what makes Earth a wonderful place . He tells you to keep your eyes open , for one day he might pop in for a cup of tea . He tells you to keep the kettle warm , and until then , he ' ll remember you whenever he says " run " , and bids you goodbye . . . for now . After the conversation ends , another video opens , from Plask . He tells you how your alliance with the Doctor allowed both of you to defeat his armies , earning you his respect , and also his undying hatred and contempt . Because of this , by Article 4Z of the Shadow Proclamation , he serves you notice . He warns you that when the glorious Sontaran Empire claims your planet as a dominion , he shall find you and talk of mutual foes and share stories of your species ' great wars , before he crushes the life from your worthless human frame . He tells you it will be an honourable encounter that he knows you will relish . Until you meet again , " Sontar - Ha ! " The message ends . Bot interactions . The Doctor Who Bot has an extremely limited AI . It ' s narrowly programmed with just a few sets of comments . Even when you negatively answer suggestions to do things , the bot will typically continue with whatever it wants you to do . Because of this , there are a number of amusing situations which can arise .