So first things first, Bright Lights of Svetlov is a stack. There is an Xbox Series X/S version and an Xbox One version. If you buy the Xbox One version first, you can get the Series X/S version half priced!
Press 
to start the game
Head up the stairs, go left and interact with the button next to the elevator. Get on the elevator and press the button for the 8th floor. Step out of the elevator and go forward and slightly left to door 66. Pick up the note from the door handle. Go right to door 67. Knock on the door twice, and eventually she’ll chuck the key on the floor. Pick up the key and head back to door 66. Let yourself into the apartment.
Go left and then through the door on the right. When you enter the room, you’ll knock over a tub of glue. Ignore that for now and go to the table. Pick up the folders. Leave the room and back track down the corridor. Head left through the glass door and then take an immediate right to the large display cabinet. Interact with the cupboard and place the folders inside on the bottom shelf.
Leave the room and head left through the bead curtain into the kitchen. Pick up the box of matches on the window sill and then go back into the living room. On the window sill in the living room is a pack of cigarettes. Pick them up and then head through the door on the right to go to the balcony. From here, interact with the ashtray on the small cabinet on the right.
Once the brief smoking cutscene has finished, grab the rag from the washing line over the edge of the balcony. Leave the living room and go right, this time though head through the door to the left of the glue room which is the bathroom. Interact with the tap furthest left on the wall to turn the water on. Interact with the water and then turn the tap off. Go back into the room with the glue and interact with the glue stain on the floor.
Head back into the kitchen and open the top right kitchen cabinet. Interact with the bottle of alcohol and return to clean up the glue by interacting with the stain one last time. Go back to the kitchen. Interact with the cupboard under the sink and pick up the bucket of rubbish. Leave the apartment and go up the flight of stairs. Go right, open the large, green garbage disposable and interact to throw the rubbish away.
Return to the apartment and head into the living room. Interact with the sofa. Turn around and go to the large display cabinet. In the cupboard under where you placed the folders is sheets. Pick them up and place them on the sofa. Then return to the cupboard to pick up the pillow. Place that on the sofa and then interact with the wooden chair on the left side of the sofa to change for bed. Lastly, interact with the sofa to go to sleep.
When you wake up as a different character, feel free to turn off the TV by interacting with it. You’ll play as multiple different characters but in the same apartment, so the floor plan is the same. Leave the room and head right into what is now a bedroom (previously the room where the glue stain was). On the desk on the right-hand side of the room is a diary page. Interact with it to read it.
Head into the kitchen and interact with the chair. Then open the fridge and interact with the beer inside. Interact with the chair once more to finish writing the letter.
Now as yet another character, firstly feel free to pull the radio cable out at the plug on the wall to get a bit of peace and quiet. Then pick up the plate on the table and place it in the sink on the right. Then pick up the mug on the same table, again place it in the sink. Go into the living room and pick up the mug on the coffee table. Return to the kitchen and place the mug in the sink. Lastly, pick up the fork directly to the left of the sink and pop that in as well. Pick up the rag to the left of the tap and then turn the tap on. Open the top right kitchen cupboard and grab the orange box labelled soda. Interact with the sink to do the dishes.
Head back into the living room. Behind the ironing board in the back right of the room is a watering can. Water the plant on the living room window sill and the plant behind you on the sideboard next to the door. Then pop into the kitchen and water the plant on the window sill in there.
Go into the bathroom and grab the laundry basket out of the bath. Go back to the living room and out through to the balcony. Put the basket down on the little table and then hang all the laundry on the washing line over the edge of the balcony. After that, there will be a knock at the front door. Open the door to find a parcel on the floor. Interact with the parcel to open it and read the note inside. Pick up the parcel and head into the kitchen. Open the bottom left cupboard next to the oven and place the parcel inside.
Now you’re back as Anatoly. Head into the kitchen and read the note on the table. Go back into the living room and interact with the cupboard you previously placed your folders in. Pick up the three light bulbs and the key. Go out the front door and use the key to open the metal cage door in front of you. Grab the light fixture from the back of the storage area. Head back into the apartment and into the bedroom. Interact with the light socket on the ceiling to hang the fixture, and then interact three times to pop in all the light bulbs. Turn around and turn the light switch on (on the wall next to the door frame).
Go to the window sill and pick up the tub of glue next to the hammer, then pick up the bucket on the floor next to the stepladder. Then go into the bathroom and place the bucket in the bath. Interact with the pipe to move it over the bath and then turn the tap on. Turn the tap off when the glue is ready and pick up the bucket. Head back into the bedroom and put it down on the floor where you found it. Turn around and pick the brush-up from the desk and interact with the bucket. Then interact with the blank space on the wall and pick up the roll of wallpaper from the bed. Interact with the wall once more to put the paper up.
Pick up the hammer from the window sill and grab the small pot of nails from the top of the stepladder. Interact with the wall just above the desk. Then pick up the wooden shelf unit next to the bed behind you. Interact with the wall to put it up. The bottom shelf will fall off, pick it up and interact with the shelf to pop it back on.
When you hear the weird noise, head into the living room and then out the balcony to find a dead pigeon.
Back as Tamara now. Go up the stairs and head left. Press the elevator button, step inside and press the button for the 8th floor. Go into your apartment. Go into the bedroom. On the right-hand side of the desk is a guitar, interact with it.
Then interact with the books on the desk to move them. Pick up the report card underneath. From here, turn around and make the bed. Then pick up the sheet of paper from under the pillow. The phone in the hall will start ringing. Pick it and after the brief cutscene go into the living room. Interact with the cupboard in the large display cabinet (yet again, the same one that had the folders and light bulbs in it). Pick up the large garage key.
Leave the apartment, head into the elevator and return to floor 1. Head right and down the small flight of stairs and then out through the front door. Head left and then forward, go by the roadworks. Continue forward onto the grass. Go through the metal archway on the right. After the brief cutscene, move forward to the white garage door with the number 19 on it. Interact with the door and head through it. Pick up the letter in the back right of the room. Then interact with the smoking area and then the radio twice.
Leave the garage and head back toward the apartment. A black car will arrive and trigger a cutscene when you get close enough to it.
Head back into the apartment building. After a brief cutscene, interact with the document on the sofa. Leave the room to trigger the next section.
Back as Anatoly. After the cutscene, go to the front door to pick up the parcel. Head back into the living room and place it down inside the white outline. Interact with the box to open it, pick up the TV and place it on the table directly to your left. Open the cabinet in the large display case and pick up the small key.
Leave the apartment and go into the storage room behind the metal gate. Pick up the TV ariel from the back left corner. Return to the TV and put the ariel on top of it.
When the phone starts ringing, go answer it. After the conversation is over, try and enter the bedroom.
Eventually it’ll fade to black and you’ll be playing as Viktor. Read both of the diary pages on the desk. Head into the living room and interact with the sofa to go to bed.
Now you’ll be playing as Nadia. Go into the bathroom and pick up the rag from the small cabinet on the right next to the door. Interact with the desk in the bedroom to clean it, then head out into the corridor and interact with the phone stand to clean that too. Then head into the living room and clean the top of the TV, before finally heading into the kitchen. Interact with the table and the counter top to clean both of them.
Pick up the matches on the right of the window sill, then interact with the silver dial on the front of the oven. Then interact with the bottom right hob. Open up the fridge, pick up the large pot of broth and place it on the hob. Head over to the phone cabinet and pick up the small key on the left underneath the phone. Go into the bedroom, interact with the cupboard on the desk and pick up the flashlight.
Go into the living room and into the same cupboard in the display cabinet you’ve been using all game and pick up the battery. Leave the apartment and take the elevator down to floor 1. Leave the apartment building the same you did previously, but this time take a sharp right and head through the left door on the apartment building.
Press 
to use the flashlight. Head forward and then left. Continue all the way forward until you hit a wooden gate with a padlock on it. Interact with the padlock and then the door. Head through and after the brief cutscene interact with the yellowish oak looking door in the center. It’s the only door with a handle. Go through the door and pick up a jar of tomatoes from the back shelf.
Leave the room and backtrack out following the corridor down and then up the stairs on the right to leave the cellar. Take an immediate left and re-enter the apartment building. Go back to the kitchen and interact with the pot of broth on the hob. You’ll briefly play as Anatoly. Open the door and head into the kitchen.
After the cutscene you’ll find yourself in a long corridor with a door surrounded by light. Go through the door. Then head forward and through the door on the left. After the cutscene you’ll be in a room with multiple moving doors. Go to the desk and open the cupboard. Pick up the flashlight. Walk toward the doors and eventually they’ll disappear and the screen will fade to white.
Use to turn on the flashlight and spin around until you find the doorway of light. Walk up the stairs and then through the door. Interact with the door and then walk through the light for a brief cutscene.
You’ll then find yourself in the apartment but everything is floating. Head toward the kitchen to find a key floating in the air in front of where the beaded curtain usually is. Head through the front door. Go forward to the end and then right. Follow the path forward, it’s very linear, only one way to go. When the path eventually splits in front of the large display cabinet, go right and through the door. It looks like a dead end but you’ll fall through the floor and end up in a field. Move forward to Tamara in the distance.
Now you’re back as Anatoly. Leave the living room and pick up the geiger counter on the floor in front of the phone cabinet. Go into the bedroom and toward the bed. Watch the cutscene and the credits to the end to get the final achievement.
Congrats on another completion/two if you did the stack as well!