

Ecosystem
Tom Johnson · 2024 · Colony Sim, Automation, Simulation, God Game, Life Sim
PC
Mostly Positive77% · 593
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About Ecosystem
Ecosystem is a game about life. At its heart are evolving virtual lifeforms, who grow from synthetic DNA and live in a physically-simulated ocean. This DNA encodes everything about a creature: their skeletal structure, their mental processors and even their combat prowess.
The nervous system of a virtual lifeform is a pipeline computer where, every moment, data from sense organs passes through a network of neurons and finally contracts a muscle in a specific body part. Creatures swim just like real sea-life, applying torque at their joints to push against the water in a way coordinated to propel themselves forward.
To create life, you need only release a batch of these lifeforms into the water with random brains and bodies. Most will flail around aimlessly, but those that manage to move even slightly will get to have more offspring than the others. Ten generations later, their descendants will be talented swimmers.
It’s really satisfying to see the creatures evolve in a real sense, guided by your hand in the simulated fluid of your own world.
Whether it’s using electrical attacks to stun enemies or developing poisonous spikes to evade the jaws of predators, Ecosystem’s simulation features an in-depth combat layer.
Each creature has a range of combat statistics that will determine their role in the food chain. As a species evolves and gains a foothold, it will need to adapt to survive attacks from predators or face extinction.
If you want to take a more hands-on approach in your creatures’ evolution, a suite of tools are provided, unlocked as you progress through the game, to force certain traits in your species. From high level settings such as requiring a species to have tentacles, be a certain size, or have a set amount of body parts, to minute details such as determining the amount of drag or torque a creature may face when swimming, the simulation is yours to control.
Ecosystem features procedural worlds with a variety of options such as ocean depth and soil type, but you can go one step further and sculpt the terrain yourself, raising mountains or carving out dark caves for your predators to lurk in.
For players who want to monitor their ecosystems closely, there is a lot of data at your fingertips. We’ve got you covered for all the statistics and analysis of your world that you could possibly want - from ecosystem overviews showing population charts for both animals and plants to phylogenetic trees for individual species, allowing you to track your species evolution.
Ecosystem features Steam Workshop support, allowing you to share your species, maps and aquariums. Download other players' species from within the game and introduce them to your ecosystem and see if they have what it takes to survive.
Simulation
The nervous system of a virtual lifeform is a pipeline computer where, every moment, data from sense organs passes through a network of neurons and finally contracts a muscle in a specific body part. Creatures swim just like real sea-life, applying torque at their joints to push against the water in a way coordinated to propel themselves forward.
Evolution
To create life, you need only release a batch of these lifeforms into the water with random brains and bodies. Most will flail around aimlessly, but those that manage to move even slightly will get to have more offspring than the others. Ten generations later, their descendants will be talented swimmers.
It’s really satisfying to see the creatures evolve in a real sense, guided by your hand in the simulated fluid of your own world.
Combat
Whether it’s using electrical attacks to stun enemies or developing poisonous spikes to evade the jaws of predators, Ecosystem’s simulation features an in-depth combat layer.
Each creature has a range of combat statistics that will determine their role in the food chain. As a species evolves and gains a foothold, it will need to adapt to survive attacks from predators or face extinction.
Playing God
If you want to take a more hands-on approach in your creatures’ evolution, a suite of tools are provided, unlocked as you progress through the game, to force certain traits in your species. From high level settings such as requiring a species to have tentacles, be a certain size, or have a set amount of body parts, to minute details such as determining the amount of drag or torque a creature may face when swimming, the simulation is yours to control.
Sculpt Your Own Ecosystem
Ecosystem features procedural worlds with a variety of options such as ocean depth and soil type, but you can go one step further and sculpt the terrain yourself, raising mountains or carving out dark caves for your predators to lurk in.
Data At Your Fingertips
For players who want to monitor their ecosystems closely, there is a lot of data at your fingertips. We’ve got you covered for all the statistics and analysis of your world that you could possibly want - from ecosystem overviews showing population charts for both animals and plants to phylogenetic trees for individual species, allowing you to track your species evolution.
Share Online
Ecosystem features Steam Workshop support, allowing you to share your species, maps and aquariums. Download other players' species from within the game and introduce them to your ecosystem and see if they have what it takes to survive.
DLC & expansions
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Base game + 1 of 1 DLC at today's best prices.
$12.98
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What Steam players say
Recent verbatim reviews from Steam — separate from playze.io community reviews below.
I love the concept and the gameplay wasn't even that bad if you know what you're getting into, however the game is soo poorly optimized that it was burning my computer up and sutttering quite a lot once things started going which is sad because i had just gotten multiple spieces in the system. It is pretty unplayable once that happens.5 found this helpful
dont expect... sensible "evolution"... its not. the fish need lots of guidance to be... normal. what this game IS: its super chill. and a bit silly. thats about it. i got it for USD $8 on sale, worth it... $20 is a bit high for what this game offers.2 found this helpful
My only wish is that plants would grow at a good rate no matter the fps
I've always wanted a game that simulates evolution in an ecology. This does it for me. Sure, this game has a lot of potential and I'd love to see a refined 2nd game one day if the developer gets inspired but this one is really fun as is. Eventually you unlock a LOT of fine tuning parameters for evolution. I recommend!
Ecosystem offers a refreshing interpretation of the life simulation genre by focusing on evolution, biology, and environmental interaction rather than traditional resource management or survival mechanics. Instead of controlling a single creature or completing a scripted campaign, players oversee the development of an entire underwater ecosystem where every living organism evolves according to simulated genetics and natural selection. The game embraces scientific principles to create an experience that feels both educational and entertaining, giving players the opportunity to observe life emerge, adapt, and compete in a constantly changing aquatic environment. Its concept is ambitious, and it succeeds in delivering a sandbox where experimentation often produces fascinating and unpredictable outcomes. The defining feature of Ecosystem is its advanced evolutionary simulation. Every creature is generated from a strand of artificial DNA that determines its physical appearance, skeletal structure, movement, senses, and behavior. Rather than relying on preset animations or predetermined species, animals evolve naturally as successful traits are passed from one generation to the next. Wa…
oct 06 2025 is the last actual update ive seen for this game. Despite that I recommend it as a fun pass time.
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