Dig the seabed, grow an ecosystem, and defend the Dragon Palace from the divers who come to carry the princess away. Kelp feeds urchins, urchins feed octopuses, and the food chain you grow becomes your defense line. You cannot command your sea beasts. All you can do is dig.

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About This Game

Dig. Grow. Defend.

Dig into the seabed and sea beasts are born from the soil. Kelp spreads, urchins graze on it, octopuses hunt the urchins. You never give them orders. All you can do is dig, and the ecosystem that grows becomes the wall protecting the Dragon Palace.

Eight species, one food chain

Kelp, Urchin, Octopus, Sea Firefly, Sea Bunny, Mermaid, Umibozu and Skeleton. What is born depends on which soil you dig. Nutrient-rich earth breeds kelp and urchins. Mana-soaked earth breeds sea bunnies and mermaids.
They walk, eat and breed on their own schedule. Funnel the divers into a narrow corridor, or open a wide hall and let the swarm surround them. How you dig is your entire strategy.

The divers are coming

Fishermen, harpooners, monks, armored warriors, a turtle girl, and worse. Each has a favored tactic and a weakness, and each leaves a grave when it falls. Dig up the grave and the bones fight for you.

Princess Skills

Powers wielded by Otohime, the ruler of the Dragon Palace. Earn coins as you play and buy them from the shop on the title screen.
Heal your beasts, level the dungeon with a quake, or carve several tiles in one strike. Eight skills, three levels each, one equipped at a time.

Built to be played your way

  • Full controller support. Menus, encyclopedias and the shop are all reachable with a pad alone.
  • Rebindable controls for mouse, keyboard and gamepad.
  • Japanese and English.

Contents

  • 8 stages, roughly 2 to 4 hours
  • A high difficulty mode unlocked after clearing the game
  • Two tutorials (basics and advanced)
  • Banquet Hall, a sandbox for digging and growing an ecosystem freely
  • Sea beast encyclopedia, diver encyclopedia and ecosystem chart

AI Generated Content Disclosure

The developers describe how their game uses AI Generated Content like this:

Some 2D art assets (character portraits and a portion of the character sprites) and some in-game text (dialogue lines) were produced with the assistance of generative AI tools. All AI-generated output was manually edited, retouched and adjusted by the developer before being included in the game.
No content is generated at runtime; everything ships with the build as pre-generated assets.

System Requirements

    Minimum:
    • Requires a 64-bit processor and operating system
    • OS: Windows 11 64-bit
    • Processor: Intel Core i5 or equivalent
    • Memory: 4 GB RAM
    • Graphics: DirectX 11 compatible, 1 GB VRAM
    • DirectX: Version 11
    • Storage: 1 GB available space
    • Additional Notes: Mouse and keyboard required. Gamepad supported. Minimum resolution 1280x720.
    Recommended:
    • Requires a 64-bit processor and operating system
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