Credits

ECHO BELOW uses original procedural Canvas and WebAudio fallback assets.

Optional generated media is produced by local tools:

Key art: img-openai with gpt-image-2
In-game sprites and seabed texture: existing gpt-image-2 outputs, previous Dreamina International outputs, and local transparent fallback sprites from tools/make_missing_art.py
Expanded icon atlas: one 4x6 gpt-image-2 sheet generated through img-openai --backend wdt, split into 24 transparent gameplay sprites
Vision video: video-vertex with Vertex Veo
Music: music-vertex with Vertex Lyria
Sound effects: ElevenLabs Text to Sound Effects via tools/eleven_sfx.py

No third-party model, texture, or stock-media asset is required for the default playable build.