The Star Room door combination
Set the Small Circle to the rose, the Medium Circle to the sprout-like symbol, and the Large Circle to the two V shapes with a dot above them, then pull the nearby lever to reveal the Lantern. From untouched rings, use 4 turns on the Small Circle, 1 on the Medium Circle and 1 on the Large Circle.
Bring climbing tools and an Axe
Bring an Axe and spare Grappling Hooks for the climb through the explosive-fungi area. If you still need to open the passages around the fountain and visit the wall clues, also bring a gem and explosives for the blocked routes.
Make Grappling Hooks in your inventory by combining a Hook with Rope; the Hook itself is crafted at the Workbench. Check your supplies before leaving camp so you can keep climbing when you reach the broken stairs and ruined platform.
Open the route from camp to the fountain
- Head upstairs from the hub camp to the locked door. The roof gap above it is your way into the area beyond.
- Aim a Grappling Hook at the roof gap until the interaction prompt appears, then use it to create a climbing rope.
- Climb through the opening to reach the platform on the other side.
- Descend from the platform toward the roots behind you. The previously locked door is beyond those roots.
- Cut away the roots with the Axe to reach the door.
- Open the door from this side to establish a shortcut back to the hub.
- Return up your rope and follow the route left across the pillar, through the gold door, to the chest.
- Follow the gap behind you and the rocks upward from the chest to reach the lit area.
- Clear the rocks in the center with explosives so you can activate the fountain area.
- Pull the lever beside the fountain back at the start of this area. It turns on the lights and causes corn to grow nearby.
Find the sundial and the wall clues
- Take the door to the right of the fountain and follow the stairways to the bridge. A vine heart sits underneath it.
- Destroy the heart beneath the bridge to remove the nearby vines and hostile flowers.
- Backtrack and take the right-hand route upstairs through the door to another statue.
- Place a gem on this statue to open a hidden doorway nearby.
- Retrieve your gem from the statue so you can keep it for later.
- Enter the hidden room to find a fountain and glowing murals that help explain the constellation clue.
- Pull the lever behind this fountain to open a spiral-staircase shortcut to the main hub.
- Return to the doorway just before the starting fountain and take the route on its right, now accessible after destroying the vine heart.
- Destroy the rocks on the right to uncover another spiral staircase.
- Climb the revealed staircase to reach the sundial. Its pointing direction identifies the Medium Circle's sprout-like symbol.
- Return down the staircase and take the right-hand route into the partly lit room, where another mural provides a puzzle hint.
- Follow the stairs left from that mural to find the wall patterns. The Large Circle needs the missing symbol: two V shapes with a dot above them.
Reach the Star Room above the fungi
- From the hub camp, follow the upstairs route left to the three-way split, then take the right branch to the spiral staircase with a rope.
- Climb the existing rope to reach the broken staircase.
- Use a Grappling Hook on the stairs above you to create the next climbing route.
- Clear the obstruction at the top with your Axe to enter the explosive-fungi area.
- Follow the room's left side to the drop. Your route continues onto the ruined platform overhead.
- Use another Grappling Hook on that platform to create a rope upward.
- Follow the upper path to the room with running-water sounds, then take the left stairs down to its fountain.
- Take the spiral staircase to the fountain's right to enter the room with rotating constellation-like lighting.
- Watch the rotating constellation for the shape matching the glowing murals. This identifies the rose used on the Small Circle.
- Cross to the opposite side of the room and climb the spiral staircase to reach the ring door and its lever.
Keep your distance from the explosive fungi during the climb. You can trigger an explosion by approaching, then retreat before the blast.
Set the circles and collect the Lantern
- Rotate the Small Circle to the rose. If untouched, it takes 4 turns.
- Rotate the Medium Circle to the symbol with a sprout-like shape in its center. If untouched, it takes 1 turn.
- Rotate the Large Circle to the two V shapes with a dot above them. If untouched, it takes 1 turn.
- Pull the nearby lever to check the combination and open the way to the Lantern.
- Take the Lantern from beyond the door to gain an infinite light source for further exploration.
Recover from a wrong combination
A wrong lever check can awaken the Skeleton Warrior beside the door. Deal with the attacker before returning your attention to the circles, then correct the symbols and try the lever again.
Use the visible symbols whenever the rings have already been moved. The Small, Medium and Large Circles have 5, 8 and 23 positions respectively, so keep rotating toward the target symbols; the untouched-ring counts do not describe your current settings.
Use the Lantern for further exploration
The Lantern is optional for reaching the credits, but its infinite light makes it useful while revisiting dark areas and hunting for missed secrets. Collect it here before continuing your exploration.