Play with evolution! Species: ALRE is a scientifically-grounded, emergent simulation of natural selection. Creatures evolve and speciate in response to in-game mutation and selection forces, allowing you to experience and tinker with evolution in real-time.
Recent Reviews:
Mixed (14) - 64% of the 14 user reviews in the last 30 days are positive.
All Reviews:
Very Positive (66) - 80% of the 66 user reviews for this game are positive.
Release Date:
Sep 28, 2018

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Early Access Game

Get instant access and start playing; get involved with this game as it develops.

Note: This Early Access game is not complete and may or may not change further. If you are not excited to play this game in its current state, then you should wait to see if the game progresses further in development. Learn more

What the developers have to say:

Why Early Access?

“Species: Artificial Life Real Evolution has had a large following off of Steam for many years helping to guide it's development. The game's community has helped shape it to where it is today and we truly couldn't have done it without our awesome fans! We have loved the results of this and want to continue this same involvement throughout the rest of the game's development.”

Approximately how long will this game be in Early Access?

“While it's too early to give any definite time frame, we're looking at something on the order of three years.”

How is the full version planned to differ from the Early Access version?

“Our top priority throughout development has always been, and will remain, the evolution simulation the game is built upon. We will continue to improve and expand upon the simulation to support alternate methods of locomotion and feeding, new interaction possibilities, new genes and body parts, and new options for players to choose from when setting up and tinkering with their worlds. We will also continue to improve the performance and optimization of the game.

In addition, we have a plan to implement gameplay elements in the form of in-game science and investigation. Progression will be made and additional tools unlocked by studying the simulation as it evolves in real-time.”

What is the current state of the Early Access version?

“The core functionality, a real-time simulation of natural selection, is complete. Please refer to the "About This Game" section, all features described there are already implemented. There is plentiful work still to be done, however, in expanding the capabilities of the creatures and the player in their artificial universe. If you want a complete, polished and bug-free game we recommend you wait for full launch.”

Will the game be priced differently during and after Early Access?

“We plan to raise the price as the game nears launch and becomes more polished, with additional content and features.”

How are you planning on involving the Community in your development process?

“We will continue to write our regular blog posts, Twitter and Facebook posts. We are frequently available and continuously monitor our forum which already has a good deal of traffic on it. We will also take advantage of Steam's community discussion boards to get feedback from everyone and provide support to our players.”
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Buy Species: Artificial Life, Real Evolution


Recent updates View all (18)

November 9

Looking Ahead: Roadmap

I’m hard at work on getting the Mac version up and running (thanks again to Jared Mann, without whose help all this cross-platform goodness wouldn’t have been possible) and once that’s ready I’ll also be able to release all the polish and bug fixes I’ve been adding to the Windows version this last week.

In the meantime, I've uploaded the Species ALRE Roadmap to the development blog. Check it out:

2 comments Read more

November 1

* Added an Overhunting Suppression System that reduces carnivores reproduction, hunger and desire to hunt (as opposed to scavenging) when prey organisms in the local area are sparse.
- (I'd have preferred to allow something like this to evolve naturally, but mass extinctions aren't much fun and the ecosystem size in species isn't large enough to consistently recover from over-hunting induced population crashes)

* Added a mouse-tracking tooltip containing some basic information about the biome pixel and/or creature you are currently hovering over
* Rebalanced vegetation energy content for easier early game survival.
* Reduced corpse decay rates
* Fixed a bug making the Mass Extinction dialog unclosable
* Fixed a bug causing the Species dialog to close when the selected individual died
* Improved "Zoom To" button functionality (again).
4 comments Read more
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“captures the true essence of evolution and gives you a front row seat.”
8.0 – Games Finder

“just a little bit genocidey”
Rock Paper Shotgun

About This Game

Species: Artificial Life Real Evolution is an evolution simulator that allows you to create, destroy, observe and tinker with life on it's never ending, harsh march of refinement! Simulated from the very first principles of evolutionary science:


  • Every creature is uniquely defined by its genes.


  • Child creatures are slightly randomly modified versions of their parent(s).

Natural Selection

  • The environment affects every creature in their struggle to survive.

Observe or Guide

Whether you just want to observe, watch and study as the tree of life constructs itself from a single species, or you want to be an active influence on the development of the species in the game, the choice is up to you! Take a hands-on approach by using the nursery, an isolated area where you can tinker with the gene pool to your heart’s content. Use rovers to decide which creatures get to eat today and which ones starve! Create global catastrophes like an ice-age or a world-spanning flood to weed out the most vulnerable species. Or simply sit back and watch the life-and-death saga unfold!

Tell Your Story

However you treat your evolutionary sandbox, we give you the tools to tell it’s story! View every single evolutionary step in detail using the clade diagram, see where each species are living using the satellite map, get a better picture of how varied your gene pool actually is with the web of life, and view every possible detail on each creature using the creature inspection tools.

System Requirements

    • OS: Windows Vista or higher
    • Processor: 2 GHz processor
    • Memory: 8 GB RAM
    • Graphics: Shader Model 3.0

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