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Echo Vault illustrated cover

Sonar stealth

Echo Vault

A flooded vault. Three lost keys. Two sentries listening in the dark. Sonar reveals a fresh maze, but the very sound that saves you gives you away.

Download GBC ROM ↓

THE CONTROLS

D-pad / ArrowsMove
A / X / SpaceSonar pulse
B / ZDrop a decoy
Enter / StartStart or pause
M / SelectSound

Find three golden keys and reach the bottom-right exit. Clear four vaults within 800 moves. Energy recharges every six moves. Guards chase sonar and decoys.

Actual Echo Vault gameplay

Actual cartridge pixels.
160 × 144. Every one counts.

CHROMATIC / 03COLOR SYSTEM
LOADING

Keyboard, touch, or connected gamepad. Your next round is waiting.

Inside the cartridge

Procedural maze generation, persistent exploration memory and breadth-first guard pathfinding. Native pixel artwork and synthesized sound, running from a 32 KiB Color-only cartridge. High scores last for this power-on session. Compatible hardware has not yet been physically tested.