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Released Jul 2, 2025 Early Access $17.99 Very Positive

Primordialis

By Kyler Natividad

Simulation Physics Action Roguelike Nature Exploration Roguelike Sandbox Roguelite Sci-fiDifficultUnderwaterIndie

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Reviews 1,008 Very Positive

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Primordialis is a game tagged Simulation, Physics and Action Roguelike by Kyler Natividad, released Jul 2, 2025. It has 1,008 Steam reviews (Very Positive). The Steam games most like it include Biovoid, Sipho and Genesis: Rise of Life.

Primordialis is a physics-based roguelike fish builder. Unleash your creativity to defeat creatures using venomous tentacles, electrical shocks, or exploding children. The possibilities are endless. Explore the primordial depths to reveal its secrets and discover what lies beyond.

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<a href="https://launchrivals.com/games/3011360-primordialis"><img src="https://launchrivals.com/games/3011360/badge.png" alt="Primordialis launch date" width="320" height="84"></a>

<a href="https://launchrivals.com/games/3011360-primordialis"><img src="https://launchrivals.com/games/3011360/badge.png?theme=light" alt="Primordialis launch date" width="320" height="84"></a>

Biovoid 71% match · Simulation, Action Roguelike, Nature
Sipho 69% match · Simulation, Physics, Action Roguelike
Genesis: Rise of Life 64% match · Simulation, Action Roguelike, Nature
3d Bridges 63% match · Simulation, Physics, Sandbox
Ratsukade 62% match · Physics, Action Roguelike, Exploration
Rougineer 61% match · Simulation, Physics, Action Roguelike
Frutiger Aqua Rings 59% match · Simulation, Physics, Nature
Elementary Sandbox 59% match · Simulation, Physics, Exploration
Lifeforms: Binary Fission 57% match · Simulation, Physics, Action Roguelike
SimpleRockets 57% match · Simulation, Physics, Sandbox

Steam data

Everything Steam lists for Primordialis · record updated 1 day ago

Steam store

Overview

App ID3011360

Release dateJul 2, 2025

Last change number39024767

Last record update1 day ago

App type: Game
Developer: Kyler Natividad, Keith Sammut
Publisher: Kyler Natividad

Windows 64-bit

Steam Deck: Playable

Single-playerSteam AchievementsSteam WorkshopSteam CloudFamily Sharing

Patches

Build	Branch	Updated
25411257	beta	Sep 19, 2026
21311719	public	Dec 25, 2025

Depots

ID	Name	Systems	Size	Download	Manifest
3011361	—	All	46.5 MB	43.2 MB	2648281698931160850

Branch	Build	Updated	Access
public	21311719	Dec 25, 2025	Open
beta beta testing branch for upcoming updates	25411257	Sep 19, 2026	Open

Configuration

Install foldersteamapps/common/Primordialis

Executable	Arguments	Systems	Description
primordialis.exe		Windows

Space per player9.31 GB

Filesup to 10,000

Save locations3

Root	Path	Pattern	Systems
WinAppDataRoaming	Primordialis	*.bod	Windows
WinAppDataRoaming	Primordialis	*.txt	Windows
WinAppDataRoaming	Primordialis	*.run	Windows

Data from public Steam pages, updated daily; 1 day of history. LaunchRivals is not affiliated with Valve or Steam.