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Seize enemy bodies to brave the mysteries of the deep! Featuring the unique "Spirit Ride" system and a cinematic sci-fi atmosphere, Bothtec’s legendary 1986 masterpiece remains a timeless action-adventure.
Price history tracked since Jul 7, 2026 · vs all tracked offers.
Based solely on tracked price history — not purchase advice.
Tracked since Jul 7, 2026.
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Released by Bothtec in 1986, this title is a classic action-adventure game. The story begins with the protagonist drifting as a spiritual entity within mysterious ruins that have suddenly emerged from the sea. Without any initial explanation of your purpose, the situation and your ultimate goals are gradually revealed only through your exploration of the depths.
A standout feature of this game is the "Spirit Ride" system, which allows you to possess the bodies of defeated enemies. Since your attack methods, health, and even your social standing change depending on the host you inhabit, choosing which body to possess is the ultimate key to navigating the ruins.
From the strong sci-fi aesthetic of the characters and environments to the fluid animations of humanoid figures and the atmospheric use of sound effects—such as the rhythmic crashing of waves—every element works in harmony. Together, they create a cinematic and evocative experience that truly stood out in the gaming scene of its era.
*The main game and gallery screen (*Gallery) are in Japanese version.
*Other menu screens and "How to play" screens are in English.
*Flashing lights or patterns may cause dizziness, spasms, or loss of consciousness. If you feel unwell, stop playing immediately and see a doctor.
If you have a history of these symptoms, consult a physician before use.
Press Alt+Enter to switch between Full Screen and Window Mode.
In Steam Big Picture Mode, the game runs in Full Screen only.
This game can be played with an Xbox / PlayStation / Nintendo Switch controller, or with a PC keyboard.
For the best experience, we recommend playing with a controller.
Please note that keyboard behavior changes depending on whether a controller is connected.
[When no controller is connected (PC keyboard controls)]
Z / X / A / S: Xbox controller A / B / X / Y
Q / W: Xbox controller LB / RB
1 / 2: Xbox controller LT / RT (Speed Change / Virtual Keyboard)
3 / 4: Xbox controller LS / RS (Virtual Keyboard Settings)
Esc: Xbox controller View (Rewind)
Space: Xbox controller Menu (Pause Menu)
[When a controller is connected]
The PC keyboard functions as the same input as the virtual keyboard.
