Soul Interface
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About Soul Interface
Soul Interface is an evolution simulator and sandbox with natural selection and space multiplayer. You can design organisms and train or program their behavior to compete with other lifeforms, or grow and maintain a virtual aquarium.
Design organisms
Organisms have soft bodies made from individual atoms and brains built from neurons and neural networks. You can shape their behavior to out-eat, outgrow or hunt competing lifeforms into extinction. Later, you can send your most invasive organisms to duel other players and try to overtake their ecosystems with your species.
Tend a virtual aquarium
You can create safe, warm currents for digital jellyfish, build growbeds for virtual seaweed or make safe hunting grounds for baby sharks. Choose plant and predator species that coexist well, then watch the ecosystem flourish.
Presentation
The game uses hand-programmed vector graphics styled after an alternate-reality 2000s setting. It features full voice acting and an atmospheric music score by Geoffrey Guyer.
Frequently asked questions
The best price for Soul Interface is $0.20 at Kinguin. That is 98% less than on Steam, where it costs $12.99. 4 shops have an offer that activates in your country.
Some are. This page only shows offers that activate in your country; offers for other regions, or with no stated region, are left out. To see the offers for another country, change your country at the top of the page.
Every key we list activates on Steam. Redeem the key there and Soul Interface stays in your library for good.
Yes, with a small risk. Publishers create keys to sell in other shops, which is why a key can cost less than in the official store, and once you activate it the game is yours to keep, just like a store purchase. On average 1–2% of keys fail, so check the shop's buyer protection before you buy: the official store does not refund keys bought elsewhere.
The minimum requirements for Soul Interface are: Windows 10, 4 GB RAM, 4 GB storage. It runs on Windows only. The recommended specs are in the System requirements section.
No. Soul Interface is a single-player game.
Mostly, yes. Valve rates Soul Interface as Playable on the Steam Deck: it runs, but may need some manual setup.
Buy Soul Interface 98% cheaper than on Steam.
Soul Interface is available for 98% less in shops such as Kinguin, Premium CD Keys, or Driffle.
Steam lets publishers create keys to sell in other shops. Once you activate a key, the game is yours to keep, just like a store purchase.
Disclaimer: CD keys have an inherent 1–2% average failure rate. Check the shop terms for buyer protection info. Steam offers no buyer protection for keys bought in other shops and doesn't refund them.
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