Byzantine: The Betrayal
Game Details: Mystery, 1997
Links: Moby Games
Walkthrough Updated: 6/26/2026
Suggested Listening: Help Me Out (Ash 25)
Getting Started
Emre's Apartment
Read Emre's letter in your inventory, then go to the other room and examine the books in the tall shelves. Make sure you look at a shelf behind the desk, and find a key hidden behind a white book called "The Art of Carpet". Also read a book called "Roman Engineering", which contains an important diagram of a Roman Hoist.
Back out from the shelves and look at the desk. Answer the phone when it rings, and you will talk to Emre. Open the desk blotter and take the photo of Emre with a girl. Keep looking through the photos to see an image containing 7 colored symbols. Back out, then pick up the Polaroid camera from the left side of the desk. Examine the large wooden box next to the desk. Examine the decorated box inside, and press any of the buttons to make them all rise up. Now click on them in the same order as the colored symbols you just saw:
Look at the folded diagram inside the box, then back out to the room. Turn around and move the edge of the rug on the wall to reveal a hidden door. Go through here to exit out to the apartment hallway. Turn back around and enter the apartment again. Go back to the first room and head through the double doors. to go outside, then turn right and go through the archway to head to the map.
Topkapi Palace
Approach the entrance, and look in the alcove on the right to see a map of passages beneath the palace. Back out and leave.
Suleymaniye Mosque
Turn left and talk to the man in the dark blue suit. Show him the photo of Emre and say you are looking for a package, then thank him. Examine the shoe rack behind him, then pick up the dark red/white shoes. Examine these in your inventory and take out a folded note from inside the right shoe. Examine this to find a letter and a claim check. Back out, then turn right and go through the central doorway to leave.
Hotel de Londres
Turn around and approach the reception desk. Give the claim check to the clerk and you will receive a backpack. Examine the backpack to find 3 items inside. Examine each of these, then turn right and leave.
Emre's Apartment
Go inside, head through the second room and examine the desk. Save your game. Plug the scanner into the charging cable on the desk. Now quickly back out, turn around and move the rug, then leave through the hidden door (if you are too slow, you will have to load your game and try again). After the men leave, go back into the apartment, then leave through the main doors.
Basilica Cistern
Turn right and pick up a brochure from the stack to the left of the attendant. Examine this in your inventory and flip through to the end to find a photograph. Give your entry pass to the attendant, then turn left and go downstairs. Head left, then right to see a sign for the "Tear column". Turn left and go to the illuminated column, then use your scanner on it, but you will see a message that says "return to source for calibration".
Back out, then continue past the "Tear column" sign, and forward once more. Turn left until you see the body, then examine it. Save your game. Get your camera ready, then back out and use the camera on your attacker. Quickly head forward twice to the safety of the police. Talk to the police until the conversation ends.
Mehmet's Rug Shop
Go inside, then continue through to the back room. Talk until you receive a photograph. Head to the rug shop a second time, and go through to the back room, but Mehmet will tell you he is closing the store.
Go to the rug shop a third time and use your key to open the door. Turn left and move the carpet, then pick up the blue duffel bag. Examine this in your inventory and take out the 4 items from inside (then the bag will disappear). Examine all of these items. Look at the desk here and take the pencil and scissors. Open the red notebook in your inventory and look inside it. Use the pencil on the writing to reveal it more clearly.
Go through to the back room of the shop again. Look at the rug on the right and lift the corner, then use your scissors on the label. Take the coin that you find here.
Look at the back of the photograph of Emre and Mehmet to see the word "Afacan". Examine the scanner in your inventory and press the Power button. You are prompted for a password - enter "Afacan". You will eventually see an Access Denied message. Back out and leave the shop.
Istanbul University
Go inside and talk to the technician, then show her the scanner. Exit from the VR simulation using the System Exit button at the top. Keep talking to her until you leave.
Suleymaniye Mosque
Turn around and enter the mosque. Go over towards the right of the 3 lit doorways in the back. Continue to get closer until you can examine the bottom of the door. Use your scanner here, then make your way back to the map.
Aya Sofya
Head forward, then over towards the right to see some green circular patterns on the floor. Turn right from here and approach a dark doorway, then go inside. Show your first photo of Emre to the woman in here, then keep talking until she leaves. Turn right and look at the table, then use your scanner on the tile. Turn around and leave.
Istanbul University
Go inside and give the scanner to Sharife. Use the VR headset on the table behind her.
Topkapi Simulation
Your scanned items will appear in your inventory when you enter the simulation. Turn right and use the scanned door on the green doorway, then use the scanned tile on the green area above the door. Examine the white sofa to the left of the doorway and pick up the letter from here. Read the letter.
Back out, then examine the small table in front of the sofa. As per the letter, you need to place 12 stones on the board in six lines of four. Two of them have already been placed for you. This is the correct solution:
Back out and examine the white sofa again, picking up a golden cylinder and another letter. Back out, then go through the door you constructed to reach the privy chamber. Turn left and go through a doorway into the imperial library. Turn around to the left and approach a switch in the corner of the room, then turn it so it is vertical. Back out and go back to the privy chamber.
Turn right and approach the whispering fountain, then rotate the switch here to turn off the water flow. Back out, then look at the base of the fountain to see a series of 5 faces. You will also hear overlapping voices that belong to those 5 faces. You need to just listen to the central person (Suleyman). If the tiles are numbered 1-5 from left to right, press tiles 3 to turn all faces down, then press tiles 5, 2 and 2. Listen to Suleyman completely and pay attention to his words. Pick up the jade seal.
Back out and go through the door on the right to return to the imperial library. Look at the small table with the candle, then knock the candle to spill some wax. Use the jade seal in the wax, then examine the riddle. Back out and examine the clock on the other table. Insert your golden cylinder into the hole at the bottom right. Based on the riddle you just saw, follow these instructions:
- Set the time to 12:00 (both hands up).
- Press the sun button at the bottom left.
- Set the time to 6:30 (both hands down).
- Press the moon button at the bottom middle.
- Set the time to 3:45 (hour hand right, minute hand left).
- Press the star button at the bottom right.
Now take the key from inside the clock, and the glass vessel from the right of the clock. Return through the door to the privy chamber and approach the whispering fountain again. Place your glass vessel in the red receptacle, then turn the tap again. Back out and go through the new doorway to the right of the fountain, and you will be in the harem passages.
Head forward, turn right and go forward, turn left and go forward, then turn right and go forward. Continue left, forward, left, forward, right, forward, right and forward down the stairs into the private treasury. Approach the table and use your key on the wooden box, then lift the latch, open the lid and take the ruby ring from inside. Back out from the table, then go through the doorway behind it. Head right and forward 4 times to reach the sweetmeats room. Step forward to the door, which is latched shut. Open the panel to the left of the door and use the mechanism inside. Now use the System Exit button to leave the simulation.
Istanbul University
Talk to Sharife until you leave.
Archaeological Museum
Examine the end of the courtyard, then focus on a sarcophagus on the right. Back out twice, then go up the steps on the right. Turn right and go through the doorway, then turn left and talk to Nuray about everything. Return to the lobby, then go upstairs to overhear a conversation. Go through the doorway into the office. Show your press pass to the curator, then talk about everything. Make your way back outside and talk to the detective, who will confiscate your passport. Leave the area.
Emre's Apartment
Talk to Sharife about everything, and you will receive the VR headset from her. Look down and pick up the newspaper from the step here, then return to the map. Use the VR headset to start the simulation, then use the System Exit button to leave.
Archaeological Museum
Head up the steps on the right. Turn left and go through the doorway. Speak to the man in the blue suit about everything. Show him the photo of the Tear column. Turn around and leave.
Forum of Theodosius
Turn around and approach the column towards the left. Save your game. Use your scanner on the column. Now quickly back out, and you will turn around. Head toward the red car, then toward the bushes on the left to avoid Carlo - you will automatically go to your next location.
Galata Tower
Talk to Eskander about everything, then turn around and leave. Use the VR headset to start the simulation.
Cistern Simulation
Using the compass in the bottom-right of your display, head northwest from the south workman's entry, and you will reach the southwest corner. Continue northeast and southeast to find the central area. Facing west, use your pillar on the glowing green pillar.
Turn east and look down to pick up a small bronze implement. Turn southeast and pick up the rope and tackle. Continue southeast to return to the west wall area. Turn north and pick up the engineering frame, then face east and pick up a rod from the ground. Turn southeast and pick up an iron implement. Head southwest to return to the southwest corner. Turn west and pick up 2 engineering supports, then turn east and pick up another one.
Go southwest to return to the south workman's entry. Face east and pick up the forceps and rope from the ground. Head northeast and pick up the treadmill from the ground. Now head southwest, northwest, northeast, southeast and northwest to reach the north wall area. Face southwest and grab another engineering frame from against a column. Head northwest, then turn to face southeast to see a large inverted Medusa head. Examine this more closely. Now you need to reconstruct a hoist by following these steps:
- Use the purple iron implement to lift up floor stones 9 times.
- Examine the largest hole more closely to see two golden discs.
- Use the bronze implement on the lower disc, then move the lower end 2 times to rotate it.
- Use the bronze implement on the upper disc, then move the lower end 4 times to rotate it.
- Back out to see the large inverted Medusa head again.
- Insert the tapered engineering frame into the left holes.
- Insert the other engineering frame into the right holes.
- Connect the rope and tackle to either frame.
- Insert the solid engineering support into the far hole.
- Insert one of the remaining engineering supports into the back of the near hole.
- Rest the wooden rod on top of these supports.
- Attach the treadmill to the end of the wooden rod.
- Insert the final engineering support into the front of the near hole.
- Attach the forceps and rope to the top of the tapered engineering frame.
Click on the forceps to attach it to the stone panel in the ground. Turn the treadmill, then quickly lock it in position with your iron implement. Examine the hole beneath the raised stone. Pick up the liturgical fan. Now use the System Exit button to leave the simulation.
Emre's Apartment
Examine the note attached to the right side of the door frame, then leave again.
Book Bazaar
After talking to the man in the red shirt, back out and turn around, then talk to the man in the pink shirt about everything. Examine the dark blue book in the shelves behind him (to see constellations), then take the pink book lower down. Read this pink book in your inventory. Now leave.
The Arasta
Turn right and enter the shop. Turn around and pick up a brown bag from the red table, agreeing to buy it. Continue to talk to the shopkeeper, then examine the bag in your inventory. Head back outside and leave the area.
Archaeological Museum
Head up the steps on the right. Continue up the stairs inside and into the office. Show the pink book to the curator. Go back outside and leave.
Istanbul University
Go inside and turn right. Talk to Sharife until you receive the VR headset.
Ephesus Simulation
Go forward to the steps, then continue inside the library. Turn around to the right and examine a red panel in the corner of the room until you see 7 buttons - when you hover over them, 4 are marked as anomalous. Use the System Exit button to leave the simulation.
Istanbul University
In your inventory, examine the bag to see the Ephesian Letters inside. Use your scanner on these. Back out and give the scanner to Sharife. Turn left and use the VR headset again.
Ephesus Simulation
Go upstairs and into the library, then turn right and examine the red panel again. Now you can replace the writing on the anomalous buttons with the stones in your inventory:
- Replace Thought with Dark
- Replace Virtue with Sea
- Replace Wisdom with Year
- Replace Knowledge with Truth
You will automatically head down the staircase to an underground area. Use the System Exit button to leave the simulation.
Istanbul University
Leave the university.
Archaeological Museum
Examine the end of the courtyard, then focus on a sarcophagus on the right. Use your scanner on the sarcophagus. Back out and turn around. Go over to the people arguing, then talk before leaving.
Istanbul University
Give the scanner to Sharife, then use the VR headset once more.
Ephesus Simulation
Go into the library, then through the secret passage again. Use the sarcophagus from your inventory on the one in the simulation. Examine the offering bowl in front of the sarcophagus. Use the System Exit button to leave the simulation.
Istanbul University
In your inventory, examine the coin you from in Mehmet's shop. Scan this with your scanner, then give the scanner to Sharife. Pick up the VR headset again.
Ephesus Simulation
Head inside and down to the sarcophagus again, then examine the offering bowl. Use the coin from your inventory here, and you will automatically enter the next simulation.
Artemis Sub-Simulation
Look down and pick up 3 silver ingots (3/12) from the ground where you are standing. Exit the temple and look down to the left, where you can pick up another 2 silver ingots (5/12). Now head out towards the other green building. Turn back and go along the right side of the Temple of Artemis. Look down at the steps here and pick up another silver ingot (6/12).
Go back around to the front of the temple and head inside. Turn right and look at the small locking mechanism next to the side door, which has a bee symbol. Use the System Exit button to leave the simulation.
Istanbul University
Examine the bee ring in your inventory, and scan this with your scanner. Give the scanner to Sharife, then use the VR headset once more.
Artemis Sub-Simulation
Turn right and examine the small locking mechanism, then use the bee ring on it to open the doors. You will automatically head through and into the south gallery. Move forward, then look down to the left at the statue of Artemis (the last symbol on the necklace is Cancer). Continue forward and left to reach the north gallery. Look down at the floor behind you and pick up another silver ingot (7/12). Look again at the statue of Artemis (the first symbol on the necklace is Pisces). Return back out to the vestibule.
Turn right and enter the central chamber (cella). Look down and pick up 2 silver ingots (9/12). Turn around and pick up the final 3 silver ingots (12/12). Turn back around and examine the offering table. You need to place 9 of the ingots on the table in the correct order, based on the statue's necklace, the astronomy book in the bazaar, and the newspaper you found at Emre's apartment. Examine each ingot in your inventory to see its constellation and symbol, then place them in this order from left to right:
- Pisces
- Aquarius
- Capricorn
- Sagittarius
- Scorpio
- Libra
- Virgo
- Leo
- Cancer
You will automatically leave the simulation and the university.
Archaeological Museum
Head up the steps on the right. Continue up the stairs inside and into the office. Talk to the curator about everything, then leave again.
Gordian Construction
Look at the doorway to the right and focus on the keypad that requires a numeric combination. Back out twice, then go past the white car and around the corner into the Nargile Bar. Turn left and head downstairs behind the bar.
Save your game. Open the wooden door to the storeroom. Quickly turn right and examine the metal shelves. Look in the "Tombeki" box and take the Global Air ticket, then take the handwritten note behind it. Back out, then turn left and exit through the double doors to return to the street.
Go past the white car and around the corner into the Nargile Bar again. Examine the counter to see a set of number tiles on a wooden stand. Examine the handwritten note in your inventory. Given there is a lime on the counter, look at the green numbers in the stand to see the code 7049. Leave the bar and head to Gordian Construction again. Go to the keypad and enter the code 7049. Open the door to go inside. Continue forward.
Save your game. Use the elevator to go upstairs. Quickly examine the black notebook at the right end of the glass table, then take the bank cheque from inside. Turn around to the left and exit the office again, then use the elevator to go back down and exit through the red door. Leave this area.
Galata Tower
Turn around and give the bank cheque to Sharife. She will eventually give you the VR headset.
Aya Sofya Simulation
You will start in the inner narthex. Turn around to the left and grab the helmet from the nearby bench. Head north into the vestibule and pick up the golden lamp from the steps, then continue up the steps on the right to reach the upper gallery. Turn around and pick up the red compass, then turn left and head towards the large arched window. From here, turn left and pick up a vase of roses from the balcony.
Return back down through the vestibule to the inner narthex. Turn left and go through the partially opened doors into the nave. Continue forward, then turn left and go forward. Look down to the right and pick up a purple bottle from the base of one of the columns. Return out to the nave, then turn left and go forward. Pick up the orb and cup from the altar.
Examine each of the objects you are carrying at this point. You need to identify which objects belong to each of the prayer participants mentioned in the Book of Ceremonies you found in Emre's duffel bag:
- Patriarch: Cup
- Belisarius: Helmet
- Architect: Compass
- Theodora: Bottle
- Justinian: Orb
Turn around and make your way into the area within the bronze screen. Place the cup, then the helmet, and finally the compass on the circular pattern on the floor here. Leave the nave, then turn right and go forward, and continue up the steps to the right. Turn right and head towards the arched window, then look down to the left to see another circle on the ground. Place the bottle here. Go back down to the nave, and into the bronze screen area again. Now place the orb on the circular pattern here.
Save your game. Pick up the golden diadem. Quickly back out, turn right, and go forward twice, then look down to the right and climb down the hole in the floor. Now continue quickly through a green maze by taking this path:
- forward
- left and forward
- right and forward
- right and forward
- left and forward
- left and forward
- right and forward
Continue through the closed alcove ahead and you will reach a computer menu. Click on following menu options:
- Knot
- Transactions
- Export
- Computer Lab
- (Middle of the pyramid)