About This Demo

Hunt. Evolve. Build your own monster.

There is no safe place in this food chain. ABYSSAL is a dark 2D biological survival game where you seize nutrients, slip between predators, and turn a tiny cell into a creature of your own design.

Your body is your strategy

Drag mouths, spikes, flagella and support structures onto your body, then set their position and angle. Commit to a frontal bite, threaten the flanks, or build for mobility and circle back for the kill. Buy, upgrade, sell and fuse organs to try new combinations. Herbivores, carnivores and omnivores each offer a different way to survive.

Turn a close call into a comeback

Fill your experience bar, then choose when to evolve. Leveling restores all your health and opens your next DNA modification session. Find an opening, reshape your body, and return to the fight with a new plan.

Form a colony. Break the glass.

Normal mode takes you from a single cell to a symbiotic colony. Drag cells to shape your body and combine feeding, propulsion, defense and recovery. Follow the fracture in the enormous petri dish, break the glass yourself, and guide your whole body through the opening.

One cell. An endless build to chase.

Endless mode expands a single cell from 4 organ ports to 16, with organs you can keep strengthening. Every two minutes of active combat, ecological pressure rises. Contest the remains, dodge a hungry mouth, and seize your chance to strike back. Set your best survival time on Steam’s global, friends and nearby-player leaderboards.

A different life with every new run

Animated organs, contact-based predation and distinct hit reactions bring your builds to life. Each mode has its own save, with ten interface languages supported. The free Demo includes petri-dish growth, colony editing, glass-breaking escape and single-cell Endless survival. The laboratory beyond the dish and evolution at larger scales are directions for future development of the full game; the opening CG presents that creative vision.

Demo organ collection: Normal mode offers 24 petri-dish organ types. Endless uses 14 early types plus two next-stage trials: Arthropod Claw at level 14 and Layered Carapace at level 18. Keep strengthening your available organs and try different builds. The Fusion Core is a future-content preview only; it cannot be purchased, installed or obtained through fusion in the Demo.

AI Generated Content Disclosure

The developers describe how their game uses AI Generated Content like this:

Generative AI was used during development to create some pre-generated artwork and textures, cinematic video and audio, and to assist with writing and localization. These assets were selected and integrated before release. The game does not generate AI content or connect to AI services during play.

Mature Content Description

The developers describe the content like this:

Contains creature predation and combat, organic tissue and meat fragments, dark biological imagery, and a pre-rendered cinematic showing monsters swallowing animals and destroying urban and science-fiction environments.