Subnautica-Inspired Underwater Slice

This repository is now a Unity 6.3 LTS prototype focused on building the look and feel of a Subnautica-style underwater scene. The goal is a strong visual vertical slice rather than a full survival sandbox.

What is included

• First-person underwater swimming with buoyant acceleration
• Procedurally generated seafloor, reef dressing, and coral silhouettes
• Graphics-focused underwater atmosphere:
  • depth fog
  • animated caustic light patterns
  • water surface shimmer
  • drifting particulates and bubbles
  • fullscreen underwater post effect
• Scanner tool presentation in the lower-right of the view
• Ambient fish schools plus a larger distant creature silhouette
• A light scan loop with several scannable targets

Unity version

• Unity 6.3 LTS
• Project version file targets 6000.3.3f1

If your local Unity patch is slightly newer within the 6000.3 line, importing the project should still be fine.

How to open

1. Open Unity Hub.
2. Add this repository as a project.
3. Open it with Unity 6000.3.x.
4. Open the scene at Assets/Scenes/SubnauticaSlice.unity.
5. Press Play.

The scene itself is intentionally minimal; most of the environment is built at runtime by the bootstrap scripts.

Controls

• WASD - swim
• Mouse - look
• Space - ascend
• Left Ctrl or C - descend
• Left Shift - burst swim
• E - scan highlighted targets

Scan objective

Swim through the reef and scan nearby flora/fauna targets. The objective text and scanner HUD update as progress increases.

Notes

• This prototype is graphics-first. The emphasis is on underwater mood, color, composition, and motion in the scene.
• The world is assembled procedurally in code to keep the repository lightweight and easy to extend.