HOW TO PLAY
Controls and goals
- How to operate
- On a computer, use the left and right arrow keys to move. Mobile version allows you to use on-screen touch controls
- Goal
- Descend through the underwater labyrinth and use coins and buttons to open new locations as you search for the legendary Great Ruby in the deepest depths
ABOUT THE GAME
In a heavy diving suit,
To the bottom of a forgotten civilization.
"Abyss" is a platformer by mochil0 that explores an underwater labyrinth. Walk left and right in a heavy diving suit that cannot jump, avoiding danger and enemies as you search for the legendary large ruby left in the deepest depths. Air is unlimited.
THREE RULES
Go down, don't jump,
Search for treasure.
On the wall at the beginning, there are instructions in English about going down, not being able to jump, and finding treasure. The only operation you can do is move left and right, so the next route will be determined by which scaffolding you get off from.

Actual play photography: Detour playlist editorial department/Production: mochil0
Select the fall point just by moving left and right
Heavy diving suits cannot be used for jumping, and only the left and right keys can be operated. Walk to the edge of the platform and drop down, looking for a place to land as you descend through the underwater labyrinth.
Open new locations with coins and buttons
Golden coins are used to open secret doors, and buttons open passages to other locations. The tricks you find during your exploration will expand the scope of what you can do next.
Find the secret room and aim for the big ruby
Underwater labyrinths contain enemies, dangers, and secret doors and rooms. Collect coins on your way to find the Great Ruby in the deepest part of the world, and advance your quest to multiple endings.
PLAY NOTES
Play notes
- Required time
- There is no description of average sessions or expected play time on the official itch.io work page
- Language
- The work page and important operating instructions in the game are in English. The instructions at the beginning are to go down, not be able to jump, and look for treasure.
- Fees/Support environment
- You can play the free HTML5 version of the official itch.io on your computer browser. Mobile version has touch controls
- Conservation and diving
- Your progress will be saved within your browser. There is unlimited air, but you cannot jump because your diving suit is heavy.
Choose a place to fall,
Go to the deepest part where the Great Ruby awaits.
The author's official itch.io work page and official GitHub repository were confirmed on August 24, 2026. The two published images were taken by the editorial department using the official HTML5 version. Sources: Abyss — mochil0 official itch.io, abyss-game — mochil0 official GitHub repository
STREAMING INFO
Streaming and video uploads
We checked the author's official itch.io work page and official GitHub repository, but we were unable to confirm any terms and conditions that explicitly guide distribution, video posting, and monetization. Unconfirmed content does not mean that it cannot be distributed, so please check with the author if necessary.
“Unconfirmed” does not mean streaming is prohibited. We have not confirmed an official policy for the general public.




READER COMMENTS
Comments on Abyss
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