Our weird ensemble of heroes continues their journey in Sea of Stars’ space. Following some mind-bending interdimensional travel, it’s only fitting that our next stop takes us to the stars themselves. The Sky Base is full of complex puzzles, hidden treasures, and a spine-tingling showdown with the formidable Catalyst boss. Here’s a complete walkthrough of Sea of Stars’ Sky Base and how to complete it.
Related: Sea of Stars Walkthrough Guide – Dungeons, Collectibles, Wheels, Side Quests, & Tips
Sea of Stars: How to Solve the Arrows Puzzle in the Sky Base
To complete this puzzle, use the middle console to target a floating platform and the arrow up and arrow down consoles on the left and right to move the targeted platform up and down.
- Hit the arrow down button until the first platform reaches the bottom position.
- Hit the middle console to target the second platform.
- Hit the arrow down button once to align both platforms on this side.
- Hit the middle console to target the third platform.
- Hit the arrow up button to align the platform at the top position.
- Hit the middle console to target the fourth platform.
- Align both platforms with the arrow up button once more.
Psst, move both platforms from the first section to the top to reach a secret rainbow conch chest.
Related: Sea of Stars: Rainbow Conch Locations & Uses
When ready, interact with the orange console to unlock a new room in the room with the trippy window floor. Then, use the orange screen on the wall to access a new platform. In the next area, avoid the lasers and interact with the console to activate a teleporting device to the right. Use it to reach a new area and activate the console inside the glass elevator room.
Sea of Stars: How to Complete the Graplieu Puzzle in the Sky Base
To complete this puzzle, all circles must be hit only when green. Follow these steps.
| Image | Steps |
|---|---|
 | Interact with the console northwest. |
 | Keep heading west past some ropes and a tightrope to reach a new area with enemies. |
 | Stand on the green tile in the next room to spawn a log to walk on. |
| Then, stand on the orange tile to activate the next puzzle. |
 | Hit the green circle to the center-left. Then, hit the green circle to the left. |
 | Hit the green circle to the center-right. Then, hit the green circle to the right. |
 | Use the Graplieu on the log southwest in the room to the left. |
 | Hit the orange console here. |
 | Walk to the room’s southeast corner and use the graplieu to reach the two treasures. |
 | One treasure has a Sparkmesh Cape, and the other has a Rosewood Cork. |
 | Press the orange screen to cause the Graplieu to move, providing an exit through the teleporting device. |
 | In the big room, defeat the enemies and interact with the console northeast. |
Sea of Stars: How to Complete the Energy Device Puzzle in the Sky Base
| Image | Steps |
|---|---|
 | Go through the hallway and interact with the orange screen northeast and northwest in the next room. |
 | Push the energy device northeast to the lower floor. |
 | Then, interact with the console in the center. |
 | Jump on the platforms and push the energy device northwest to the lower floor. |
 | Push this same northwest device south and activate the orange console at the center once again. |
 | Push the northwest device north. Then, activate the console once again. |
 | Push the northeast device south. |
 | Activate the console once again. |
 | Push the northeast device north. |
| Push the northwest device west. Then, activate the console again. |
 | Push the northeast device east. Then, push the northwest device east and then north so it falls into the hole. |
 | Activate the console again and push the northeast device west and north so it falls into the hole. |
 | In the next room, open the chest west to find a Music Sheet. |
Sea of Stars: How to Find the Catalyst in the Sky Base
| Image | Steps |
|---|---|
 | Head through the door with the red 2 for more epic battles and puzzles when ready. |
| Interact with the orange console before the window to unlock a new area to the east. |
 | Open the treasure to the east for a Question Pack. Then, enter the glass elevator room. |
 | Interact with the big orange console to unlock a portal to the right. |
 | On the upper floor, head south to access a new area. |
 | Interact with the console with the arrow pointing to the right to move the station. |
 | After clearing some enemies, interact with the big orange console to the north. Don’t forget to open the treasure next to it to get some Plasma Daggers. |
 | Head down and interact with the console with the arrow pointing to the left. |
 | Interact with the console to the right to see the coolest thing in the video game: a 3D printer vendor. |
| When ready, head north for an epic boss battle against the Catalyst. |
Sea of Stars: How to Beat the Catalyst Boss Guide
To defeat the Catalyst in Sea of Stars, follow these steps:
- Attack the Catalyst’s first two repeaters one at a time.
- Then, face its four guns: two repeaters and two repair units. The process should be the same but now prioritize the Repair Units.
- When finally facing the big, bad Catalyst, you’ve already got an idea of what its guns are like. Prioritize the Repair Units, then focus on the damage-dealing guns. When they are down, unleash all damage on the Catalyst before they respawn.
