Adventure · Simulation · made with Claude
Echo-9
Deliver packages on foot through post-apocalyptic Hanoi using a desktop and a phone.
About Echo-9
Echo-9 makes you a courier in post-apocalyptic Hanoi, where the power grid has failed. You carry packages on foot through the city in 3D, steering with WASD on a desktop and weaving around the thousands of scooters that fill the streets.
The creator says it draws on Another World, the 1991 game, aiming for a similar mood in 3D, and added the phone pairing for novelty. It was built with Claude Code on Three.js and placed 85th of the 945 entries at Vibe Jam 2026.
That pairing is the hook: the game runs across two devices at once. The desktop shows the city and handles movement, while your phone becomes a companion tool for the mission, with buttons, a briefing and accelerometer input among other features.
How it was made
Most of the code was written by AI. Source: Vibe Jam 2026 submission form.
Evidence: the creator's own account.
- AI provider
Anthropic- AI tools
- Claude Code
- Engine
- Three.js
- Genre
Adventure, 
Simulation- Players
- Single player
Controls
- WASD to move (desktop)
- Phone buttons
- Phone accelerometer
Questions about Echo-9
Is Echo-9 free to play?
Yes. Echo-9 runs in your web browser at no cost, with no download or account needed.
Which AI was used to make Echo-9?
Echo-9 was made with Claude Code and Claude. Most of the code was written by AI, according to the Vibe Jam 2026 submission form.
Can I play Echo-9 on my phone?
Yes. Echo-9 supports mobile browsers.
Who made Echo-9?
Echo-9 was made by tonnoz. See their profile on GamesByAI for their other games.
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