Stellaris – BioGenesis DLC RoW Steam Digital Key

A bioengineering expansion for Stellaris

Stellaris - BioGenesis puts genetic mastery at the centre of galactic strategy. You take on the role of a geneticist empire, reshaping species, ecosystems and even the ships you sail through the stars. The expansion overhauls Genetic Ascension with three paths, Cloning, Purity and Mutation, plus over 18 enhanced authorities that can be blended together to suit your own strategy.

Fleets themselves become part of the biology. Living ships evolve with your empire and can be customised for combat or support roles, growing stronger or adapting as your civilisation does. For those drawn to the darker side of evolution, the Behemoth Fury crisis path lets you breed and unleash a biological monster on the galaxy.

New origins, civics and structures

The expansion adds three new origins: Evolutionary Predators, which builds on Species Traits and phenotype abilities; Starlit Citadel, which combines a biological mystery with early access to the Deep Space Citadel megastructure; and Wilderness, where you begin as a sapient planetary ecosystem seeking to spread across the stars.

There is also a Hive Fallen Empire with a fractured, three-way personality, six new civics, sixteen new species traits, and additional content such as biological ship sets, city sets, diplomatic rooms, reactive species portraits and new music and events.

• Three Ascension paths: Cloning, Purity, Mutation
• Behemoth Fury player crisis path
• Three new origins: Evolutionary Predators, Starlit Citadel, Wilderness
• Deep Space Citadel megastructure
• Six new civics and sixteen new species traits

About this listing

This is a Steam key for Stellaris - BioGenesis in the Standard edition, developed by Paradox Development Studio and published by Paradox Interactive. The key activates in the RoW region and is redeemed on Steam, where it adds the expansion to your existing copy of the base game.

Stellaris - BioGenesis released on 5 May 2025 and runs on Windows, Mac and Linux, carrying a PEGI 7 age rating. It supports a wide range of languages including English, French, German, Spanish, Polish, Portuguese - Brazil, Russian, Chinese, Japanese and Korean.

Where it fits in your library

As a simulation and strategy title, BioGenesis sits comfortably alongside other strategy games and simulation games on Steam. If you are building out your Stellaris collection, browse further DLC and expansions or the wider range of Steam DLC, and check out other Steam keys while you are at it.