Ultreïa is a fantastic point-and-click adventure featuring ten Steam achievements.

The walkthrough below covers all achievements, puzzles and secrets. Therefore, it contains major spoilers. If you prefer an achievement overview with less spoilers, please refer to this table:

The first two sections of the walkthrough also apply on the demo. It includes two achievements:

https://steamproxy.net/steamstore/app/1591730

• After the opening scene, go to the right.
  
• Pick up the broken plank and some branches.
  
• Open your inventory and repair the plank. Use it on the pit.

• Take the mushroom and enter the motel.
  
• Talk to the bartender. Try to order a whiskey.
  
• Now, talk to the nervous guy on the left. Accept to help.
  
• Leave and walk to the very right.
  
• Pick up the fine bottle of whiskey and the oil can. Talk to Ellie to get a pickaxe.
  
• Go back to the motel and enter the restrooms on the left.
  
• Use the empty oil can on the sink.
  
• Head to the back of the motel and search the trash to find wire cutters.
  
• Use the oil can on the kitchen door and enter the kitchen. Pick up the grater.
  
• Combine the grater with the mushroom, and the mushroom particles with the whiskey.
  
• Walk to the left and go upstairs. Leave through the back door.
  
  
• Back inside the motel bar, use both the ice and the potion on the glass of the drunken guy.
  
• Steal the key and reach the motel room area through the open back door.
  
• Use the key on door #2. Inside, open the case and use the wire cutters on the red wires.
  
• Give some of the white flowers to the nervous guy downstairs.
  
• Enter the restroom and use the pickaxe on the hatch.
  
• Examine the inside of the ship.
  
• Go to the right and use the coins on the green button.
  
  
• After the cutscene, use the umbrella on the dripping water.
  
• Combine the screws with the straw and use the blowpipe on the red button.
  
• Grab a battery from the bucket. If you miss, use the blowpipe on the button again.
  
• Use the battery to repair the phone and call #004.
  
• Now, call #001. Immediately after picking the third dialogue option, press the 'help' button.
  
• Call #003, then #009. Let the cook check room four.
  
• Head towards the forest.

• Pick up the small stick on the left. Use it on the bag on the right.
  
• Look at the room and throw a rock towards the flasks.
  
• Use the stick on the glue and head to the right.
  
• Use the blowpipe on the friendly creature on the right. Continue walking to the right.
  
• Pick up the weights, the hook, a piece of the feather and a piece of paper.
  
• Combine the hook with the stick and go back to the previous scene.
  
• Use the bag on the chain next to the cage and fill it with weights.
  
• Go right and use the chain on the nail.
  
  
• Go down and pick up some mushrooms. Go up again.
  
• Head to the other end of the shelf and use the mushrooms on the potion.
  
• Go back to the location where you found the mushrooms. Interact with the Alchemist.
  
• Use the extended hook to pick up a bone. Go up again.
  
• Now, use the feather, the wormwood, the bone, and the uranium on the pot.
  
• Go to the right and use the paper on the embers. Quickly use the burning paper on the pot.
  
• Interact with the potion to get wings.

• Inspect the chess board and pick up the light bulb.
  
• Use the light bulb on the lamp on the right. Pick up the screwdriver.
  
• Head outside and open the small box.
  
• Go down the road and use the screwdriver on the electrical box.
  
• Interact with the electrical box to mess up the wires.
  
• Now, click on the button in the top left corner to switch to Bally.
  
• As Bally, head down the road and interact with the puddle, then with the electrical panel.
  
• Switch to Nymo and enter the tower.
  
• Try to take the plasma gun, then switch to Bally.
  
• As Bally, enter the tower and hide in the hole. Switch to Nymo.
  
• Talk to Octobob and choose:
  
  
  1. About this place...
     
  2. What kind of gun are you pointing at my face?
  
  
• Now, quickly take the GPS and interact with the lever. Talk to Octobob again if necessary.
  
• Go through the hole on the right. Interact with the lever, then quickly click on the panel.
  
• Jump into the wind to get electrocuted.
  
• Finally, head down to Octobob and interact with the buttons.

You can use the GPS to fast-travel between locations now:

• Talk to Glover. Ask about the performance.
  
• Fast-travel to Ramen street. Talk to the cook and order a 'Royal Ginger Bread Toast'.
  
• Use a Piastre on the left vending machine. Pick up the ginger pickles.
  
• At Arnold street, find a cone and inspect the bin on the right.
  
• Go to the club (dead end) and take a closer look at the painting.
  
• Now, interact with the phone and fast-travel to Ramen street. Steal the hot sauce.
  
  
• Fast-travel to Baldwin street and enter the Red Bird.
  
• In the lobby, manipulate the thermostat (max temperature).
  
• Go to the lounge and talk to Alfredo. Ask how business is going.
  
• Leave the building and talk to the flying shapes. Show them the magnifying glass.
  
• Head back to the lounge and use the wedding ring on Alfredo to get a special coin.
  
• Go upstairs and use the bread on the heater.
  
• Combine the bread with the hot sauce, the ginger pickles, and the small umbrella.
  
• Head through the open door and pick up the monocle.
  
• Leave and try to enter the VIP area downstairs.
  
• Give the monocle to the guy in front of the screen, then interact with the light switch.
  
• In the dark, look at the monocle to see the reflection. Talk to the guy and choose:
  
  
  1. I would like to access that VIP area.
     
  2. Felician Rops.
  
  
• Go behind the curtain. Talk to Winston and mention Demian Manson.
  
• Then, play cards against Winston and win:

Strategy: Play the card with the ornament until you get a sword card. Then, either play the shield card (defend) or the sword card (attack). If you hit Winston, repeat the previous steps. Else, restart.

• At the caravan, give the 'Royal Ginger Bread Toast' to Glover.
  
• Enter the club and use the cone on the dancer on the right to get some matches.
  
• Follow the hallway and find a wallet in the pocket on the right.
  
• Then, talk to Blanche Jones and mention Winston.
  
  
• Head back to the Red Bird and show the wallet to Myersow upstairs.
  
• In the VIP area, speak with Winston about Blanche Jones.
  
• Fast-travel to Arnold street and show the robot on the balcony your police badge.
  
• Inside Polina's apartment, interact with the box on the right.
  
• Use the matches on the stove on the left. Put the scraps of metals in the pan.
  
• Go to the Red Bird and visit Sally upstairs.
  
• Pick up the key on the right and combine it with the clay.
  
• Now, combine the pan on the clay and head back to Polina's apartment at Arnold street.
  
• Use the little key copy on the locked safe.
  
  
• Enter the bathroom and open the washing machine.
  
• Fast-travel to the dark alley and enter the laundromat.
  
• Use the dirty cloth on the washing machine. Inspect the tissue in your inventory.
  
• Open the journal (smartphone) and enter the code: 1932.
  
• Head to Kali Plaza and enter the church.
  
• Speak with the deity about Demian Manson to receive a mysterious key.
  
• Go to the club and find a locked metal door at the end of the hallway.
  
• Use the mysterious key on the metal door.

From now on, the game is straight-forward and decisions don't matter. However, the game features a secret ending which can be unlocked after the credits.

While watching the credits, don't return to the main menu. Instead, wait until you enter the next loop. Replay the first part (prologue and motel) until you find the white flowers. Now, inspect the flowers and navigate to a portal. Remember everything to unlock the secret ending.