Sonalume Below

See with sound. Survive what hears you.

Sonalume Below is a handcrafted echolocation adventure set across 120 caves in eight buried worlds. The cave begins in darkness. Send out a pulse to reveal walls, ruins, creatures, and the way forward — but every sound can also give away your position.

Explore at your pace in Explorer, Standard, or Expert mode. Rescue lost divers, recover 48 echoes, solve resonator gates, master silent movement and decoys, and piece together the Song of the Deep.

Version 1.1.0: Afterlight adds 24 epilogue caves, clearer region and level progress, refined touch controls, local diver nicknames, and native journey sharing.

Highlights:

• 120 complete levels across eight distinct regions

• A sound-and-silence mechanic built for touch

• Three difficulty modes and optional hints

• 48 collectible echoes and eight story chapters

• Local-only nickname, progress, settings, and statistics

• Share scores and journey milestones through Android's share sheet

• Optional rewarded revive — never required to keep playing

• Offline gameplay after installation

• Reduced motion, high contrast, haptics, music, and sound controls

No account is required. Your nickname and save data stay on your device.

Recent changes:
Afterlight expands Sonalume Below to 120 levels. Explore 24 new epilogue caves, save a local diver nickname, share scores through Android's share sheet, and enjoy clearer region and level cards, refined controls, pacing fixes, accessibility polish, and a new optional rewarded-light revive.