EchoAbyss by Aincrad
If the game is loading slowly or bugged, please try it on: https://aincrad179.itch.io/echoabyss :)
EchoAbyss
A 2D Side-Scrolling Deep-Sea Exploration Game
Game Concept
Navigate a submarine through the perilous ocean depths, dodging jellyfish attacks, avoiding obstacles, and uncovering secrets to reach the mysterious bottom of the abyss!
Controls & Mechanics
🕹️ Movement
| Key | Action | Details |
|-----------|---------------------------------|----------------------------------|
| A/D | Move left/right | Hold to steer horizontally. |
| S | Accelerate descent | Sink faster (useful for evasion).|
| W | Hover (slow descent) | Drains energy; disabled at 0. |
🔦 Sonar Pulse
- Left Mouse Click → Launch sonar scan.
- Briefly reveals:
- Terrain layout (obstacles, paths).
- Enemy silhouettes (jellyfish, hazards).
- Cooldown: Must recharge between uses.

🎯 Objective
Survive the depths, manage your hover energy, and use sonar wisely to reach the ocean’s deepest secrets!
| itch.io link: | https://aincrad179.itch.io/echoabyss |
| Original URL | https://ldjam.com/events/ludum-dare/57/echoabyss |
Ratings
| Overall | 667th | 3.211⭐ | 21🧑⚖️ |
| Fun | 706th | 2.921⭐ | 21🧑⚖️ |
| Innovation | 347th | 3.395⭐ | 21🧑⚖️ |
| Theme | 165th | 4.105⭐ | 21🧑⚖️ |
| Graphics | 596th | 3.316⭐ | 21🧑⚖️ |
| Audio | 498th | 2.921⭐ | 21🧑⚖️ |
| Humor | 590th | 2.389⭐ | 20🧑⚖️ |
| Mood | 609th | 3.294⭐ | 19🧑⚖️ |
| Given | 9🗳️ | 21🗨️ |
It was pretty easy since after getting suprised once by the fast enemy i just super avoided them all. The map layout could have been litte more intresting.
I really liked getting suprised by environmental props that werent in sonar, really made the "exploring" more mystical.
Though the art is nice it little missmatches with the black sonar. The sea near you is wibrant but then there is completle darkness in sonar area. Either having the sonar be a lighter color (maybe even inverted so the ping borders are black etc) or having the sea be more dark. Now those 2 concepts fight eacheother, am i diving into a nice colorfull colar or a deep dark depths?
Would love to see this as more full game!
Maybe I messed it, but having some way to know when the cooldown is ready for it would have been a nice addition. Also playing full screen as mentioned in the page's description made the energy bar cover the character, so I had to play on regular size screen, but it didn't bother me.
Awesome job overall!
Maybe I would scale the vision with a bigger circle gradient, gg !
Good job !
(Oh, and I had to start the version on the itch website, the version here is either bugged, or otherwise the support isn't there yet; even if I press the full-screen button, there's a huge blue area overlapping my view...)