Sekai app alternative: five apps to make games and share them
Sekai turns a typed idea into a quiz, meme or mini game you can share in a group chat. If you want a different maker, these five apps do the same loop with their own twist.
Quick answer
The closest Sekai alternatives are Loopit and Aippy, AI feeds of short playables you make from a typed idea. Castle is a hand-built game editor, and Astrocade also runs on the web. Roam fits if you want friends inside the game, not just playing your link, on iPhone.
Updated . Roam is our app, and the Roam team wrote this comparison. Roam is free to download and play on iPhone, and making works without a subscription; optional Spark and Reality plans and credit packs add more creation. Android: pre-register on Google Play.
Side by side
| Roam | Sekai | |
|---|---|---|
| Platforms | iPhone and iPad (App Store); Android: pre-register on Google Play | iPhone, iPad, Android, and play on the web at sekai.ai |
| What you make | Games with a world, art, characters, sound and rules | Mini apps: quizzes, interactive memes and stories, mini games |
| Free to start | Free to download and play; making works without a subscription. Optional Spark and Reality plans and credit packs add more creation | Free to download; the App Store lists no in-app purchases; free limits not published |
| Ads | Not published | The App Store listing says it contains advertising |
| Play with friends | Solo or with friends; friends can be in the game | Drop a link in a group chat so friends play, react and compete; real-time multiplayer not published |
| Feed | A feed of games other people made | An endless feed of community creations, with Remix |
| Who owns your work | You keep ownership. Roam gets a license to run, improve and showcase it; you can opt out of AI improvement | Sekai's terms say it does not assert ownership over your contributions |
| Age rating | 13+ (App Store) | 13+ (App Store), Teen on Google Play; terms state no minimum age |
| Store numbers | See the App Store | 4.8 from about 30K US App Store ratings; 10M+ Google Play downloads |
Sekai facts from its App Store and Google Play listings and its terms, read on Nov 4, 2026. Roam does not publish its free limits.
Which one to pick
Pick Sekai if
Your fun lives in the group chat. Sekai is built for quick formats like a "who's most likely to" quiz or a party game, sent as a link. It runs on iPhone, iPad and Android, and its catalog also plays on the web.
Pick Roam if
You want a game with a world, characters and rules, with your friends inside it. Describe it in a sentence, then change it by talking. Roam is on iPhone; Android is pre-register only.
What Sekai is, and what it does well
This page is about Sekai, the AI app from Versa AI. It is not the Hatsune Miku rhythm game Project Sekai, which is a different app from SEGA.
Sekai has been on the App Store since June 2024. You type an idea and its AI builds a playable mini app: a personality quiz, an interactive birthday card, a meme, a story or a small game. Any post can be remixed, so you can swap the characters or the questions and make it yours. The feed is endless, and sharing is made for group chats.
It is big. Google Play shows 10M+ downloads, and the US App Store shows 4.8 stars from about 30,000 ratings.
Is the Sekai app free?
Sekai is free to download. Its US App Store listing lists no in-app purchases and says the app contains advertising. Sekai does not publish any free limits, prices or credits in its terms, so check inside the app before you plan a big project.
A quiz in the chat, or a game with your friends in it
Both start from a sentence. The difference is what comes back. Sekai makes short, shareable formats, and friends play them from a link. Roam makes a game with a world, art, characters, sound and rules, and your friends can be in it with you, solo if they are offline, together when they join.
Roam can also start from a photo: your friend, your dog, a meme screenshot. Then you edit by talking: "more enemies", "make it two-player". There is no code and no project file to manage.
Sekai is ahead on reach today. It runs on Android, and its catalog plays on the web. Roam is on iPhone and iPad, with Android pre-registration on Google Play.
Five Sekai alternatives
- Loopit iPhone and Android, from Beijing SeedLeap. It makes playables: interactive memes, tactile mini games and remixes. Its terms require users to be 13 and give Loopit a perpetual, sublicensable license to what you post.
- Aippy iPhone and Android. You chat with AI to build games, simulators, small tools and interactive art. Its free plan allows 4 messages a day and 20 a month, and its terms allow commercial use of what you build.
- Castle iPhone and Android, on the App Store since 2021. You build by hand in an editor with tools for art, physics, logic and sound, start from templates or remix others. Creating and sharing never needs a purchase, per its listing.
- Astrocade Web, iPhone and Android. Describe a game and its AI builds art, sound and gameplay, then share it to the feed. Its terms limit use to personal, non-commercial use, and AI output stays Astrocade Content.
- Roam iPhone and iPad (App Store). Describe a game and play solo or with friends in the game. Free to download and play; making works without a subscription. Optional Spark and Reality plans and credit packs add more creation.
Is Sekai safe for kids?
The US App Store rates Sekai 13+ and lists infrequent mature or suggestive themes, crude humor, horror and sexual content or nudity. Google Play rates it Teen for sexual themes and language. Its terms state no minimum age. Like every app here, it has a public feed of user-made posts, so scroll it yourself before saying yes.
Roam is rated 13+ on the App Store too.
Games people made on Roam
Turn the group chat joke into a game
Take the quiz or joke you would send on Sekai and make it a game on your iPhone, with your friends inside it.
Try: "a group chat mystery, someone ate the last slice, my friends are the suspects, vote one out each round"
Questions people ask
Is the Sekai app free?
Yes, it is free to download, and the US App Store lists no in-app purchases. The listing says the app contains advertising. Sekai does not publish free limits or prices.
Is the Sekai app safe for kids?
The App Store rates it 13+ and Google Play rates it Teen, for sexual themes and language. Its terms set no minimum age, and its feed is made by users. Parents should look through the feed first.
What apps are like Sekai AI?
Loopit and Aippy are the closest: both turn a typed idea into a playable feed post with remix. Castle is a hand-built game editor, Astrocade also runs on the web, and Roam makes games your friends can be in, on iPhone.
Is there a Sekai app for Android?
Yes. Sekai is on Google Play with 10M+ downloads and on the App Store for iPhone and iPad, and its catalog also plays on the web at sekai.ai.
Who owns what I make on Sekai?
Sekai's terms say it does not assert any ownership over your contributions. They do not say who owns AI-generated output or how to export it.
Sources, checked Nov 4, 2026
- Sekai on the App Store
- Sekai App Store data (iTunes lookup, US)
- Sekai on Google Play
- Sekai Terms
- Sekai website
- HATSUNE MIKU: COLORFUL STAGE! on the App Store
- Loopit on the App Store
- Loopit on Google Play
- Loopit Terms
- Aippy on the App Store
- Aippy on Google Play
- Aippy Terms
- Castle on the App Store
- Castle on Google Play
- Astrocade on the App Store
- Astrocade on Google Play
- Astrocade website
- Astrocade Terms of Service
- Roam on the App Store
- Roam Terms of Service
Product names belong to their owners. Roam is not affiliated with them. Facts change: check each product's own site before you choose.