Abyssal Evolution Demo

Abyssal Evolution is a fixed-view aquarium roguelite about building a living ecosystem. Deploy specialized fish, evolve and mutate them, combine equipment and remnants, manage pollution and Core Overload, and complete ten experiments before hatching an unknown deep-sea lifeform.

Type

Steam demo

Status

open

For

Abyssal Evolution

Developer

Passive Games

Genres

Casual, Indie, Simulation, Strategy

Platforms

Windows

Release

Oct 22, 2026

First seen

2026-10-23