The Sunken City — The Alters Walkthrough

Day 1: Make It To The Base Follow the linear path, collecting resources and reaching the base. Interact with the elevator to enter and head to the Communication Room to contact Earth. Visit the Captain's Cabin to learn basic mechanics and end the day by interacting with the bed.

Day 2: Collecting Resources to Survive Exit the base through the Airlock and gather Metal deposits (orange glowing rocks). Locate Organics deposits (indicated by blue smoke). Build a Workshop and then a Scanner using the Base Building Console in the Command Center. Craft the Scanner in the Workshop.

Day 2 (Continued): Exit the base again and head towards the blue smoke. Find a parachute on a cliffside to collect cargo. Loot another crashed cargo pod in the opposite direction for a Multitool. Navigate through a cave to find a glowing Spire and extract Rapidium.

Day 2 (Continued): Locate the Organics deposits and use Scanners to find the best mining spot. Place a Mining Outpost and connect it to the base using Pylons. Return to the Communication Room to contact Earth and receive the task to build a "Womb" module. Complete the task in the Womb module to get a Sheep. Speak to Earth one last time and go to sleep in the Captain's Cabin.

Day 3: Gather the New Resources To Leave Fast travel to the Mining Outpost and gather Organics until the tank is full. Return to the base and go to sleep. Be mindful of the Radiation Storm that begins at 22:00.

Day 4: Move On To The Next Act In the Command Center, build a Kitchen. Craft at least 6 Mush meals. Ensure you have enough Organics to fill the tank. If ready, interact with the console in the Command Center to move the base to the next chapter. Make sure to explore the area thoroughly before leaving, as you cannot return.