Submerge yourself into the depths with this fun underwater collect-a-thon! May update/add more in the future.

Can work with keys, mouse, and touchscreens

Key board controls:
Right hand - Left and Right to move, Up to use sonar
Left hand - A and D keys for Sonar attacks, W to use sonar

All audio and music are either orignally made or copyright free

2925-01-20
- Tweaked sonar's sound, animation, and cooldown
- Added Death Animation
- Added Current animation, as well as Upwellings and Downwellings, which will either slow or speed up your descent.
- Minor aesthetic changes and tutorial rewrite

2025-01-07
- Added a current feature. During gameplay, the current will pick up, making the player move in another direction.
- When the sonar plays near sea life, it speeds away

2025-01-01
- Tried a different font for the title. I might try more in the future
- Added item images for the tutorial
- When the sonar collides with hazards, they briefly turn red so people will know what to avoid
- As you sink, the hazards will spawn in slightly faster

2025-12-25
- Added French and Spanish localization! Native speakers are free to correct or offer suggestions for the translations.
- Fixed a glitch where items were deleting in the bottom right corner. Now they don't disappear.
- Tweaked some of the sounds.
- Changed the tutorial. Instead of floating up, you press the sonar button to change the text.
- Added tunnels/dark places that randomly spawn in. Make sure to use your sonar to detect any hazards you can't see.

2025-08-06
- Redid controls. You move left and right to avoid the hazards and use the sonar to collect items. I may use the sonar for more stuff int he future.
- Redid tutorial. Now you press use the sonar to change the text instead of the text floating up.
- Redid the mobile controls. Instead of buttons, you can tap or swipe.
- Minor bug fixes

2025-06-14
- Tried reworking the sound and music
- Changed the menu setup
- Let the player move left and right (Z and X or O and P)
- Updated the Win and Lose art

025-06-03
- After some thinking, I've decided to go forward and make this game a Cozy Horror. I was undecisive for awhile because what I had seemed like a nice relaxing game on its own, without the story I had in mind. I want to go forward with my Horror story, so I'll make more updates through the year and add what I can.
- Tweaked the positioning of some things

2025-05-22
- Tinted the marine life so they blend into the background a bit better
- Altered the tutorial text so that it's a bit easier to see
- Added a Sonar sound when player activates their sonar attack. I played with the pitch to make it more fun

Challenger's Sleep Demo