Riven Walkthrough
Temple Island: The Gate Room
Temple Island: The Temple
Jungle Island: Of Sunners and Submarines
Jungle Island: The Submarine Circuit
Jungle Island: Gateway to Moiety
Crater Island: Of Books and Frogs
Plateau Island: Of Mountains and Maps
The Moiety Age: The Rebel Stronghold
Gehn's World: Mystery and Madness
Catherine's Prison: Free the Princess
The End: Or Is It
CRATER ISLAND: Of Books and Frogs
Arrive at Crater Island and get dumped into a log chipper. Go down the ladder and find the boiler in the distance. Check the ladder behind the chipper on the rock. It leads to a round hatch, which in turn leads to the logging car for a return trip to Jungle Island. Go past the boiler to the right and follow the beach around the lake, counterclockwise to find a very tall narrow ladder. The ladder leads to a hatchway that's up the side of the cliff. The hatch is locked from this side, so you can't get through. Note the building farther down the cliff. This is Gehn's lab, your eventual goal. Go to the long narrow pier that extends into the middle of the lake. There you will find a valve handle with 3 possible positions. Turning it to the position farthest to the left powers the log chipper. Turning it to the position farthest to the left powers the log chipper. Turning it to the middle position powers the boiler. Turning it to the right powers the frog catching apparatus in a cave near Gehn's lab. Set the valve to the middle position. Return to the boiler and check it out. The door won't open, and there’s a red light on outside the door. Go back around the outside catwalk to the right to find the boiler controls. The first lever at the Y junction controls the routing of power from the pip leading out to the middle of the lake. The upper (left fork of the Y) lever powers the pumps that fill or drain the boiler. The lower (right fork of the Y) lever powers a grate that can move up or down inside the boiler. Leave the lever on the upper setting. Turn to the right and examine the boiler controls. The lever at the lower right, controls the heat for the boiler. You can hear a roar from a furnace. Turn this lever to the upright position and note that the roar stops and the water in the tank stops boiling. The wheel at the left moves a pipe that enables you to fill or empty the tank with water. Turn the wheel and watch the water level in the tank fall. A switch to the upper right controls the position of the movable floor grate inside the tank. First, turn to your left and switch the power valve from the upper position to the lower position. Then face the main controls again and raise the switch to raise the grate. Return to the boiler door. Note that the red light is now off.
Open the door and look inside: A tube or drainage pipe descends through the middle of the floor with a ladder leading down. Cross the grate and go down into the drain. You will be enveloped in complete darkness. Click five times to see some light ahead. One more click brings you to a ladder leading up. Continue to move toward the light and emerge from a pipe high up on a mountainside above the sea. Turn left and follow a faint, worn path in the rocks, which goes over the top of the mountain and down toward the island's central lake. Move toward a railingon a balcony resting against the side off the cliff and climb over. Look down and open the round hatch at your feet. The hatch, locked when you tried to open it from underneath, opens to reveal the long, narrow ladder you climbed earlier that leads to the beach. Face the cliff to see the double doors. Go through the doors and into the mountain. Turn around and deliberately close the doors, revealing to passageways, one to the right and one to the left. You will be returning to these doors shortly. Go forward and follow the catwalk into the cave. At the end is an elaborate trap apparatus used to catch the frogs. While you're here look up at the fan. The loud clattering sound you hear is the noise of the fan running. The ventilator shaft beyond leads to Gehn's lab, but you can't access it while the fan is running. Go back up the catwalk to the two open passages you found. Go left and follow the steps down to another chamber with a fire marble dome. Go around the side of the dome and note the kinetoscope set into the side walk of the cavern. Go over to the kinetoscope and use it to capture the yellow symbol and to open up the dome. Go back up the stairs and then go straight ahead into the opposite passage. Follow the walkway and emerge on the previously unreachable catwalk above the lake. Go forward until you find a lever and hear the clattering racket of ventilator fans. Throw the lever to turn the fans off. Continue to follow the catwalk.
The front doors to Gehn's lab are locked so continue to follow the catwalk around a curve and then onto along high bridge spanning the gulf from Crater Island back to the Great Golden Dome. When you reach a lever at a raised drawbridge, throw the lever to lower the bridge and open the passage between Crater Island the Golden Dome. Continue into the dome and follow the walkway to the left and continue toward the open section of catwalk noted earlier. Turn the large wheel to extend the bridge and complete the walkway back to the Gate Room. Proceed to the doorway through which you first entered the Golden Dome. Throw the lever handle on the right to raise the end of the bridge between the Gate Room and the Golden Dome to a new position in the dome somewhere above your head. Leave it there- you'll need access to this higher level from the Gate Room later. Before you return to Crater Island turn off at the side passage you passed by earlier. It leads to a high catwalk that goes around the outside of the building to the right, but you are stopped by a gap in the walkway. Turn around and press the button on the outer wall to the right of the doorway, and you'll see the catwalk restored as the missing section rises into place. Continue on the path to a heavy door with a lever to the side. Raise the lever to open the door to position 4 of the Gate Room, the one you couldn't open from the inside before. There is one more excursion you can make at this time, and that is to the Temple Island Fire Marble Dome.
Head back for the Golden Dome and turn left, following the stairs down to the outer catwalk on the lower level. Stop just before you enter the tunnel and press the button on the wall to your right. This takes you down to a still lower level, where a smooth walled tunnel leads to a metal stairway heading up to the Fire Marble Dome. Operate the kinetoscope to determine the yellow symbol associated with this dome, and write it down. You'll need to know it later. Now return to Crater Island and go past Gehn's Lab, past the switched off controls for the ventilator fans, and back to the double doors. Go through and down the catwalk straight ahead to the frog catching chamber. Look up and then click on the ventilator duct to climb inside. Follow the shaft until you reach another grill. Click on the grating to open it. Drop down into Gehn's lab. Check out his lab- this is where he conducts experiments to determine the proper kind of wood with which to make paper, the right inks and all other apparatus needed to make a book. Find his journal and go through it carefully. Find and record a string of five D'ni numerals. This is the code for opening the inner mechanism of the Fire Marble Domes. At this point you know the numerals for 1 through 10. You will need to look for patterns within these numerals to deduce the translation of any numbers higher than 10. NOTE: This code is different every time you play Riven. Note the wooden Eye on the desk and jot down the symbol on the reverse side. Read the paper underneath it to find out where it came from. Go to the front door and open it, unlocking it so it will now open from the outside. Return through the lab, and touch the blue topped tram call next to the door. Go to the opposite door and down the steps toward an awaiting tram.
