Comparison

Evolution vs ERAIASON

Price, ratings, monetisation and update history for both games, side by side — with what reviewers say about each.

Head to head
About

Evolution

Design and build unique creatures using joints, bones, and muscles. Witness their learning and improvement through evolutionary algorithms and neural networks as they tackle tasks like running, jumping, and flying. Share your creations with friends.

Highlights
  • Creature design with joints, bones, muscles
  • Neural network learning
  • Evolutionary algorithm improvement
  • Tasks: running, jumping, climbing, flying
  • Share simulation saves and creature designs
  • View source code
Features
Currently charting
Read full description

Use joints, bones and muscles to build creatures that are only limited by your imagination. Watch how the combination of neural networks and an evolutionary algorithm can enable your creatures to learn and improve at their given tasks all on their own. The tasks include running, jumping, climbing and flying. Can you design the ultimate creature that is good at all of the tasks? The latest update allows you to easily share your simulation saves and creature designs with your friends. Note that this is more of a simulation than a game. There are no real objectives. But there is a lot to learn if you are interested in the basics of machine learning and neural networks. You can even look at the source code if you want. There is also a Mac & PC version available for download and a browser version for you to try out on the main project website (keiwando.com/evolution).

About

ERAIASON

Oversee a population of evolving AI robots in a dynamic voxel landscape. Design robots, build terrains, and influence their evolutionary path as they learn, adapt, and compete in a simulated ecosystem.

Highlights
  • Evolving AI robots
  • Dynamic voxel landscape
  • Robot design and creation
  • Environment manipulation
  • Interactive evolutionary control
  • Simulated ecosystem
Features
Read full description

EVOLVE YOUR OWN AI ROBOT! You are the (zoo)Keeper overseeing a population of evolving AI robots in a dynamic voxel landscape. These robotic animats walk, jump, eat, mate, fight, and adapt to their surroundings as they strive to survive and reproduce. In theory, the capacity for their intelligence is limitless, as their brains can evolve to any shape and complexity. Will you choose to passively observe their evolution, letting nature take its course? Or will you intervene, shaping their world and influencing their evolutionary path? Design your own animal robots, build custom terrains, manipulate the environment, interact with the animals, and watch as each generation learns, adapts, and competes in a simulated ecosystem that’s as unpredictable as nature itself. The fate of their evolution is in your hands. --------- Introducing a new god game and evolutionary simulation, where you evolve the brains of artificial animals to make them more intelligent, to better achieve survival and reproduction. The animals are real AI robots running directly on your computer. They are controlled by classic neural networks and other types of AI such as non-axiomatic reasoning system. They have a simple form of vision sense, touch sensation, and internal sensations, and they can move each individual body segment. They can eat, mate, and fight, all while learning and evolving in a sandbox voxel environment. Watch evolution passively, or enjoy various interactive features including: + Voxel World: place voxels and modify the environment with sand, stone, water, and more. + Impact Evolution using your Research Journal: modify mutation rates in your Research Journal -- higher rates means faster but more unstable evolution, lower rates means slower but more stable evolution. + Pick up animats: Pick up animats and move the animats around with left click. + Build your own Robot: Go to the Animat Creator from the main menu to create your own robot. You can save it and load it into a simulation to evolve its brain!

Screenshots

Evolution4 screens
ERAIASON4 screens

Verdict

The call

The clearest difference is rating: ERAIASON at 5.0 against Evolution's 4.4. ERAIASON also leads on update cadence (every 3 weeks vs every 2 months). Evolution's advantage is ratings volume (549 vs 1) and price ($1.99 vs $4.99). On ads, in-app purchases and device support there is nothing between them.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

Evolution costs $1.99 and ERAIASON $4.99 up front. Neither carries in-app purchases, so what you see is what you pay.

ReceptionRating · Positive reviews · Number of ratings

ERAIASON holds the better App Store score, 5.0 against 4.4. That said, the two scores are not equally well evidenced: Evolution has 549 ratings behind it against 1, so its average is the more settled of the two.

UpkeepUpdate frequency

Evolution ships an update every 2 months, ERAIASON every 3 weeks. The most recent releases landed on October 11, 2026 and October 6, 2026 respectively.

Scorecard7 real differences · 4 level
Evolution versus ERAIASON: the parameters behind the verdict, then further details
ParameterEvolutionERAIASON
Price$1.99 — better$4.99
Rating4.4 (549 ratings)5.0 (1 ratings) — better
Positive reviews83.6% of reviews—
Number of ratings549 — better1
Update frequencyEvery 2 monthsEvery 3 weeks — better
AdsNoNo
In-app purchasesNoNo
MonetizationFree — betterPaid
Best chart rank#137 — better—
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS13.0 — better15.0
Further details — not scored
Size67 MB184 MB
Age rating4+9+
DeveloperKeiwan DonyagardChristian Hahm

Customer experience

Evolution

All ratings549 ratings
Positive85.8%
Neutral4.4%
Negative9.8%
Written reviews195 reviews
Positive83.6%
Neutral5.1%
Negative11.3%

ERAIASON

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%

Bugs and requests

Evolution

Reported bugs

4 issues
  • Creatures re-appear after being deleted
  • Horizontal distance not recorded properly
  • Simulation screen turns white
  • Creatures get stuck in a looping state

Requested features

8 requests
  • Add swimming and flying modes
  • Ability to customize creature body parts
  • Option to speed up or pause evolution
  • Save and load creature designs
  • More task types (e.g. grabbing, throwing)
Show 3 more
  • Multiplayer or competition modes
  • Improved camera controls
  • Ability to create obstacles or terrain

ERAIASON

Not enough reviews yet to summarise bugs or requests.

In-app purchases

None

Evolution

No in-app purchases

None

ERAIASON

No in-app purchases

Questions

Is Evolution free?
Evolution costs $1.99, with no in-app purchases.
Is ERAIASON free?
ERAIASON costs $4.99, with no in-app purchases.
Which has better reviews, Evolution or ERAIASON?
ERAIASON is rated higher. Evolution averages 4.4 out of 5 from 549 ratings, while ERAIASON averages 5.0 from 1 ratings.
Do Evolution or ERAIASON have ads?
Neither Evolution nor ERAIASON shows ads.
Which is updated more often, Evolution or ERAIASON?
Evolution ships an update every 2 months, and ERAIASON every 3 weeks. Most recently, Evolution was updated on October 11, 2026 and ERAIASON on October 6, 2026.

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