Design Statement
Listening to Jason Grace's theme track, I felt a solitary, fragile piano melody gradually answered by warm layered instruments—swelling from quiet isolation into shared flight before dissolving into peaceful silence. I translated that exact emotional arc directly into gameplay.

In Echoes We Leave, you awaken alone in silence and weave "Echoes" of your own footsteps, weight, lantern light, and five-note pentatonic songs. Rather than treating clones as disposable puzzle tools, each Echo stays beside you as a companion and adds a living instrument voice—Harp, Celesta, Alto Flute, or Cello—into a generative F-minor choir tuned to the theme's key.

Across 10 distinct sky worlds, every mechanic invites wordless cooperation with your past selves (or a live second player): singing to boost each other skyward, aligning crystal sunbeams, and gathering around Dawn Choir beacons. Finally, in Sanctuary #100 (Release), Jason Grace's unmodified recording plays as you let your Echoes go into the dawn sky and leave a star constellation behind.

Game Instructions (launch steps, controls, and gameplay overview)
LAUNCH STEPS:
• Web Browser (Recommended Instant Play): Click "Run game" on the itch.io page (supports PC & Mobile touch).
• Windows (x64): Extract "EchoesWeLeave-Windows-x64.zip" and run "EchoesWeLeave.exe".
• macOS (Universal): Extract "EchoesWeLeave-macOS-Universal.zip", Right-Click (Control-Click) "Echoes We Leave.app" -> click "Open" on first launch.

CONTROLS (Solo, 2-Player Co-op, Gamepad & Touch):
• Move: A / D (or Arrow Keys in Solo)
• Jump & Glide: Space or W (hold in air to glide)
• Record / Leave Echo: E (press on a glowing seal, wait briefly, press E again to anchor your Echo) | Release Echo: Q
• Sing 5 Notes: Keys 1–5 or C (or optional Live Microphone icon 🎤)
• Rewind 3s of Time: Hold Z | Panoramic View: Tab | Guiding Hint: H | Restart Room: Shift+R
• 2P Local Co-op (🤝 toggle): P1 uses WASD + Space + E + C; P2 uses Arrow Keys + Enter + /

GAMEPLAY OVERVIEW:
Weave up to 4 Echoes of your past self to hold floor seals, bridge light chasms, boost mid-air via Song Halos, align crystal mirrors, and harmonize duets. For jam judging, click "Begin Journey" -> "Story Journey (25 Signature Sanctuaries)" for a curated ~25-minute tour of all 10 worlds leading directly into Sanctuary #100 (the playable musical finale), or use "Chapters" on the title screen to jump to any chapter anytime!

Gameplay walkthrough video
https://drive.google.com/file/d/1-WkfiaMfkDj7yZXKJEpuvdnFt50JU5VC/view?usp=drive_link

Trailer / Other Additional Video Material (Optional)
https://drive.google.com/file/d/1-WkfiaMfkDj7yZXKJEpuvdnFt50JU5VC/view?usp=drive_link

Did your project use any AI tools or assets? If yes, please specify.
Yes. This game contains AI-generated content: the itch.io store page cover illustration was generated using AI image generation, and AI assistance was used during development for JavaScript/HTML5 Canvas 2D programming (time-loop physics, 2P Co-op, level editor, and desktop packaging), procedural vector visuals, and Web Audio API synthesized SFX and generative choir notes. All in-game visuals are rendered procedurally in real time on HTML5 Canvas, and Jason Grace's official theme track (theme_jason_grace.wav) is used 100% unmodified.