Primordialis

Primordialis invites you to descend into the depths of a primordial underwater world in a physics-based roguelike adventure. Build and design your own fish using a robust and creative creation system with over 60 cell types. Armed with venomous tentacles, explosive offspring, or shocking defenses, you face a harsh and diverse ecosystem teeming with handcrafted enemies. Whether you’re exploring the main roguelike mode or experimenting in sandbox mode, the game is a playground for the imaginative. With its blend of survival mechanics, custom biology, and challenging gameplay, Primordialis redefines creativity in the underwater roguelike genre.

Kyler Natividad, Keith Sammut
Kyler Natividad
July 02, 2025
96 % Positive (64 reviews)

Features

Creative Fish Building

Primordialis allows you to craft detailed fish using over 60 types of cells, such as venomous tentacles and electrical circuitry.

Roguelike Challenges

Embark on a difficult survival journey in a physics-based world filled with handcrafted, evolving enemies.

Sandbox Mode

Experiment freely in a dedicated sandbox to design and perfect your fish creations without restrictions.

Exploration and Discovery

Dive into five unique biomes filled with secrets to uncover and biological mechanisms to master.

Steam Workshop Support

Primordialis integrates with Steam Workshop, allowing players to share and explore custom fish designs.

Key Features

Single-player
Steam Achievements
Steam Workshop
Steam Cloud
Family Sharing

Frequently Asked Questions

What is Primordialis about?

Primordialis is a physics-based roguelike fish builder where you craft unique creatures to survive in a hostile underwater world.

Can I play Primordialis in multiplayer?

No, Primordialis focuses on single-player gameplay modes.

What platforms is Primordialis available on?

Primordialis is available for Windows and requires a 64-bit operating system.

Does the game support sandbox mode?

Yes, Primordialis includes a sandbox mode where you can design creatures and refine strategies without the pressure of survival gameplay.

What makes Primordialis unique compared to other roguelikes?

Primordialis stands out with its deep creature-building mechanics, allowing players to create biologically diverse fish to survive and evolve.

Genres

Tags

Early Access Simulation Action Roguelike Physics Exploration Nature Roguelike Roguelite Sandbox Sci-fi Difficult Underwater Indie Building 2D Survival Top-Down Procedural Generation Strategy Perma Death

System Requirements

Minimum

Os

64 bit Windows 7, 8/8.1, 10, 11

Memory

2 GB RAM

Storage

100 MB available space

Graphics

512 MB VRAM, OpenGL 4.0 support

Requires

Requires a 64-bit processor and operating system

Processor

Quad Core CPU

Recommended

Os

Memory

Storage

Graphics

Requires

Requires a 64-bit processor and operating system

Processor

Supported Languages

Language Interface Subtitles Audio
English

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