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:
Very Positive (10) - 80% of the 10 user reviews in the last 30 days are positive.
All Reviews:
Very Positive (74) - 81% of the 74 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 (24)

December 6

* Fixed bug causing uncontrollable population explosions when Automatic Population Control was set to "Niches"
* Fixed crash when setting Time Acceleration to 0 while the "Energy" information panel was open
* Fixed crash caused by new migration routine
* Allowed "Energy" information panel to continue to display change information when paused
* Adjusted "H&C" Automatic Population Control to keep the maximum population a bit further away from the creature cap
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December 5 - Aesthetics and Balance

* Sedimentary layers visible in cliffs.
* 'Fallen Fruit' (Fruit/Pinecones) now visible on Palm Tree, Bunya Pine and Norfolk Pine (to better communicate that P. specium *can* get food from the large trees).
* Terrain lighting angle adjusted to make the game less dark overall.
* Creatures will now (attempt to) migrate to a neighboring zone if they're hungry and can't find any food source that meets an "optimality" threshold.
* Predators that are suppressing population growth and hunting because of lack of prey will no longer suppress the hunger need, and will attempt to migrate instead of idling or occupying themselves with other behaviors.
* "H&C" automatic population control adjusted to try and maintain the population of both at a higher number and reduce the number of extinctions (even if it means capping out sometimes).
* Sat Map will now display the species average of the creatures you hover over, rather than the individual creature.
* Species List (next to Sat Map/Clade Diagram) will now take you to a specimen when you click on a species name.
* No Audio Hardware bug should now be handled more gracefully (muting the audio and putting some error text on the Main Menu rather than crashing).
* "Out of Order" sign hung on the Web of Life (I tried fixing it and made it worse)
* Parking brake added to rovers (should reduce the amount of slipping down hills, especially on 10x speed.
* Droop and Balance costs slightly reduced.
* "Motivation" gene renamed to "Risk-Taking" to better communicate what it does.
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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

What Curators Say

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