Comparison

Spider 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

Spider Evolution

Merge exotic spider species to create new mutant creatures with unique features. Discover different stages, unlock new breeds, and enjoy an open-ended gameplay experience with a humorous story. Earn coins by tapping spiders or using eggs to purchase new creatures and expand your collection.

Highlights
  • Merge spider species to create new mutants
  • Discover different stages and spider breeds
  • Earn coins by tapping or using spider eggs
  • Unlock new creatures and expand your collection
  • Experience a humorous story with twists
  • Enjoy open-ended, idle gameplay
Features
Read full description

If you ever wished spiders were a little less itsy-bitsy and a little more mutanty-radioactivy, this is a game for you! Merge the most exotic spider species you’ll ever come across to create new bug breeds with unpredictably awesome features! You might even be responsible for the origin story of your next friendly neighborhood masked superhero! SPIDER FEATURES - Pantheon: a new place for supreme beings to look down on us mortals and laugh at our misery - Impostors: watch out for impostors trying to steal the spotlight from the spiders. HOW TO PLAY - Drag and drop similar spiders to create new mutant creatures - Use spider eggs to earn coins, buy new creatures and make even more money - Alternatively, fiercely tap a spider to make coins pop from their eggs HIGHLIGHTS - Different stages and many spider species to discover - A mind-blowing story with venomous twists! - The unexpected mix of creature evolution dynamics and incremental clicker games - Doodle-like illustrations - Open-ended gameplay: enjoy the freedom! - No spiders were harmed in the making of this game, only developers Spider Evolution: the new web sensation. Please note! This game is free to play, but it contains items that can be purchased for real money. Some features and extras mentioned in the description may also have to be purchased for real money.

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

Spider Evolution4 screens
ERAIASON4 screens

Verdict

The call

The clearest difference is price: Spider Evolution at Free against ERAIASON's $4.99. Spider Evolution also leads on ratings volume (306 vs 1). ERAIASON's advantage is in-app purchases (none vs 14) and ads (none vs shown). On device support and iOS requirement 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

Spider Evolution is free to download; ERAIASON costs $4.99 up front. Spider Evolution sells 14 one-off in-app purchases. ERAIASON asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

ERAIASON holds the better App Store score, 5.0 against 4.8. That said, the two scores are not equally well evidenced: Spider Evolution has 306 ratings behind it against 1, so its average is the more settled of the two.

UpkeepUpdate frequency

Spider Evolution ships an update every 6 weeks, ERAIASON every 3 weeks. The most recent releases landed on October 19, 2026 and October 6, 2026 respectively.

Scorecard7 real differences · 3 level
Spider Evolution versus ERAIASON: the parameters behind the verdict, then further details
ParameterSpider EvolutionERAIASON
PriceFree — better$4.99
Rating4.8 (306 ratings)5.0 (1 ratings) — better
Positive reviews91.7% of reviews—
Number of ratings306 — better1
Update frequencyEvery 6 weeksEvery 3 weeks — better
AdsYesNo — better
In-app purchasesYesNo — better
MonetizationFree with in-app purchases — betterPaid
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS15.015.0
Further details — not scored
Size158 MB184 MB
Age rating4+9+
DeveloperTPG TECNOLOGIA DA INFORMACAO LTDAChristian Hahm

Customer experience

Spider Evolution

All ratings306 ratings
Positive94.8%
Neutral3.9%
Negative1.3%
Written reviews12 reviews
Positive91.7%
Neutral8.3%
Negative0.0%

ERAIASON

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

In-app purchases

14 purchases

Spider Evolution

One-time14
  • Alien Currency Pack 1$1.99
  • Hard Currency Pack 1$1.99
  • Hard Currency Pack Offer$1.99
Show 11 more
  • Remove Ads$1.99
  • Shop Bundle 1$2.99
  • Promo Bundles Very High$2.99
  • Hard Currency Pack 2$4.99
  • Alien Currency Pack 2$5.99
  • Shop Bundle 2$5.99
  • Promo Bundles High$5.99
  • Trinket$6.99
  • Hard Currency Pack 3$9.99
  • Starter Bundle Discount$9.99
  • Premium Bundle Discount$9.99
None

ERAIASON

No in-app purchases

Questions

Is Spider Evolution free?
Spider Evolution is free to download, with in-app purchases available.
Is ERAIASON free?
ERAIASON costs $4.99, with no in-app purchases.
Which has better reviews, Spider Evolution or ERAIASON?
ERAIASON is rated higher. Spider Evolution averages 4.8 out of 5 from 306 ratings, while ERAIASON averages 5.0 from 1 ratings.
Do Spider Evolution or ERAIASON have ads?
Spider Evolution shows ads; ERAIASON does not.
Which is updated more often, Spider Evolution or ERAIASON?
Spider Evolution ships an update every 6 weeks, and ERAIASON every 3 weeks. Most recently, Spider Evolution was updated on October 19, 2026 and ERAIASON on October 6, 2026.

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