ISEKAI ZERO

Contains adsIn-app purchases
4.7
2.28K reviews
10K+
Downloads
Content rating
Mature 17+
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About this app

Step into living simulations where you craft the worlds and characters that come to life around you. Build your own storylines or dive into endless procedurally generated scenarios—from immersive fantasy realms to complex social simulations. Our engine transforms your ideas into reactive narratives, with AI-driven characters that evolve within the worlds you create. Design your own scenarios, roleplay as anyone, and watch your stories unfold in real-time. New simulation tools and character archetypes added regularly—architect infinite virtual worlds where every narrative is uniquely yours!
Updated on
Jan 24, 2026

Data safety

Safety starts with understanding how developers collect and share your data. Data privacy and security practices may vary based on your use, region, and age. The developer provided this information and may update it over time.
No data shared with third parties
Learn more about how developers declare sharing
This app may collect these data types
Personal info, Photos and videos and 3 others
Data is encrypted in transit
You can request that data be deleted

Ratings and reviews

4.7
2.24K reviews
NKorok
March 19, 2026
This is... Actually kind of fire? I was stuck in other apps kind of infuriated by the complicated mess of starting the APIs and Keys and whatnot. but this app is legit kind of fire. You can also try other models with only a tap and there is a free option though the context is limited. And the coolest mechanics, sprites! Where more than one character can be put in a scenario! Truly the only downside is that the ads are not that generous when giving "energy" type limits per message. Overall, epic.
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Kevin Blixt
March 7, 2026
Love this app, its basically reading novels where you can control your character and choose where the story goes yet still get consequences for your choices. its awesome. you can watch ads and login every day for in-game credits which allows you to use the app for free. but if you decide to buy in-app credits then you should do it on their official website, its way cheaper that way. their prices is great. not expensive at all. overall im very satisfied with this app.
2 people found this review helpful
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Alexis
March 8, 2026
It's a really fun app! The only thing is that premium features need to be more accessible without having to spend so much money. I know they are working on a subscription service. I would recommend a subscription service with tiers where you're given a certain amount of mana/arcane a day. The highest tier would give you the most per day and allow you to use premium features and visual novel mode without burning through so much money for a set price.
1 person found this review helpful
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What’s new

Improved chat ui experience