Theme: Beneath the Surface

ECHOSHIFT is a tactical deep-sea survival game where the world is hidden in total darkness. You control a high-tech salvage drone navigating the "Great Trench." To see, you must pulse high-frequency sonar waves that reveal the environment as glowing wireframe echoes.

1. Pulse to See: Press SPACE to send a sonar ping. The environment is briefly revealed in neon outlines.
2. Resource Management: Every ping costs Battery. Moving costs Oxygen.
3. The Hunters: Beneath the surface, there are creatures that can't see but track your sound. Every ping you send is a beacon for them.
4. Objective: Descend into the breach, recover the "Origin Core," and reach the extraction rig.

• Framework: React + Vite
• UI: Tailwind CSS + Framer Motion (High-tech HUD)
• Engine: Custom HTML5 Canvas (Optimized for wave physics)
• Logic: TypeScript