Amethyst Dream

Lost in the dark, your only tool is sound. Tap anywhere to fire a sonar
pulse and listen for the echoes. Hidden crystal clusters answer back: the
closer they are, the brighter and faster their echo rings out. Read the
echoes, close in step by step, and tap right on a cluster to harvest it.

Every tap spends one pulse, and pulses are limited. Plan each sonar sweep,
remember where the echoes answered, and secure every cluster before the
cave goes silent.

Features:
- Pure echo-location gameplay: darkness, pulses and distance-coded echoes
- Deeper levels hide more clusters across vaster caves
- Six permanent shop upgrades: extra pulses, brighter echoes, a wider
harvest ring, lingering glow, bonus coins and a protective Void Ward
- Fully synthesized sound design with no audio assets
- Progress, coins and upgrades saved automatically

How deep can your echoes reach?