Echo Tone

The game

Echo Tone is Simon set in the abyss: five bioluminescent jellyfish drift in near-black water, each with its own colour, glow pattern and deep-sea tone. Listen to the blooming melody, then click the jellyfish back in the same order while the sequence grows one note at a time. As the melody lengthens, late echoes shimmer false lights through the dark and distort what you remember. Survive twelve notes and the reef falls silent, satisfied.

How to play

• Press Enter or Space on the title (or click Descend) to begin the dive.
• Watch and listen: each note makes one jellyfish bloom with rings and sparks.
• When the Repeat cue appears, click the jellyfish in the same order — every correct click blooms it again and the note counter climbs.
• One wrong jellyfish and the dark swallows the run; you reach note 12 / 12 to win.
• Press P or Esc any time to hold the run in suspense.